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Date: Mon, 10 Aug 2015 10:46:09 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Jiri Olsa <jolsa@...hat.com>
Cc: Kan Liang <kan.liang@...el.com>, Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Andi Kleen <ak@...ux.intel.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC V9 2/3] perf,tools: per-event callgraph support
Em Sat, Aug 08, 2015 at 06:45:39PM +0200, Jiri Olsa escreveu:
> On Fri, Aug 07, 2015 at 12:49:38PM -0300, Arnaldo Carvalho de Melo wrote:
> > Em Fri, Aug 07, 2015 at 12:38:43PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > Em Thu, Aug 06, 2015 at 03:44:53PM -0400, kan.liang@...el.com escreveu:
> > > > From: Kan Liang <kan.liang@...el.com>
> > > > Here are some examples and test results.
> > > >
> > > > 1. Comparing the elapsed time and perf.data size from "kernbench -M -H".
> > > >
> > > > The test command for FULL callgraph and time support.
> > > > "perf record -e
> > > > '{cpu/cpu-cycles,period=100000/,cpu/instructions,period=20000/p}'
> > > > --call-graph fp --time"
> >
> > Some other oddity I noticed while testing:
> >
>
> SNIP
>
> > This is in the 'perf report' TUI, why, for an event with 'callgraph=no', we
> > get callchains? How come?
> >
> > If I try it with the --stdio, well, its there as well:
> >
> > # Samples: 2K of event 'cpu/instructions,call-graph=no,time=0,period=20000/p'
> > # Event count (approx.): 46956518
> > #
> > # Children Self Command Shared Object Symbol
> > # ........ ........ ............... .......................... ..............................................
> > #
> > 67.56% 0.00% qemu-system-x86 [unknown] [.] 0xad5e258d4c544155
> > |
> > ---0xad5e258d4c544155
> >
> > 67.56% 0.00% qemu-system-x86 libc-2.20.so [.] __libc_start_main
> > |
> > ---__libc_start_main
> > 0xad5e258d4c544155
> >
> > 67.56% 0.00% qemu-system-x86 perf [.] main
> > |
> > ---main
> > __libc_start_main
> > 0xad5e258d4c544155
> >
> > 67.56% 0.00% qemu-system-x86 perf [.] run_builtin
> > |
> > ---run_builtin
> > main
> > __libc_start_main
> > 0xad5e258d4c544155
> >
> > Can you take a look? What I have, i.e. the patches from Jiri and Kan
> > moving stuff out of the way of the python binding and this patch is at
> > the tmp.perf/core branch in my git tree:
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git
>
> hum, tried this branch and got proper behaviour for both stdio and TUI,
Well, from what he explained to me, the proper behaviour was the one I
got, i.e. one event has call-graph=fp, and thus the perf_event_attr
fields for callchains will be set up as always, and the other, with
call-graph=no, will not ask the kernel for callchains, thus saving
space, but report _will_ show callchains for it, using the callchains
obtained for the first event.
So, "call-graph=no" doesn't mean you don't want callchains for a
particular events _if_ there is another event in the group for which
callchains is available.
But if "call-graph=no" for all events, then, yes, "no" means really
"no". :-)
I think we should use "call-graph=ref" to mean that no callchains should
be requested to the kernel infrastructure but that when doing the
report, use callchains available in some other event (perhaps would be
good to specify which one), while "call-graph=no" really means "no",
i.e. no callchains asked from the kernel for this event, and _no_
callchains to appear on report.
- Arnaldo
> attaching stdio output
>
> the record command was:
> $ ./perf record -e 'cpu/cpu-cycles,call-graph=fp,time,period=10000/pp,cpu/instructions,call-graph=no,time=0,period=20000/p' ls
>
> got the events strings from your report output.. what was different in your record command?
>
> jirka
> # To display the perf.data header info, please use --header/--header-only options.
> #
> #
> # Total Lost Samples: 4
> #
> # Samples: 95 of event 'cpu/cpu-cycles,call-graph=fp,time,period=10000/pp'
> # Event count (approx.): 7487606
> #
> # Children Self Command Shared Object Symbol
> # ........ ........ ....... .................. .....................................
> #
> 61.66% 0.00% ls [kernel.vmlinux] [k] entry_SYSCALL_64_fastpath
> |
> ---entry_SYSCALL_64_fastpath
> |
> |--55.19%-- open64
> | 0x686361632e6f732e
> |
> |--21.81%-- __GI___libc_write
> | |
> | |--24.74%-- 0x6e69746c69756220
> | |
> | |--19.20%-- 0x909632e66666964
> | |
> | |--18.35%-- 0x657461746f6e6e61
> | |
> | |--16.05%-- 0x1dbdc70
> | |
> | |--11.32%-- 0
> | |
> | --10.34%-- 0x9096f2e61746164
> |
> |--6.18%-- __getdents64
> |
> |--5.00%-- mmap64
> | |
> | |--50.39%-- _dl_check_all_versions
> | |
> | --49.61%-- _dl_map_object
> | 0x213988
> | 0
> |
> |--2.72%-- mprotect
> | dl_main
> | _dl_sysdep_start
> |
> |--1.26%-- _exit
> | __run_exit_handlers
> | 0
> |
> |--0.92%-- __GI___munmap
> --6.92%-- [...]
>
> 34.03% 0.00% ls [unknown] [.] 0x686361632e6f732e
> |
> ---0x686361632e6f732e
>
> 34.03% 0.00% ls ld-2.18.so [.] open64
> |
> ---open64
> 0x686361632e6f732e
>
> 34.03% 0.00% ls [kernel.vmlinux] [k] sys_open
> |
> ---sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 34.03% 0.00% ls [kernel.vmlinux] [k] do_sys_open
> |
> ---do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 34.03% 0.00% ls [kernel.vmlinux] [k] do_filp_open
> |
> ---do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 34.03% 0.00% ls [kernel.vmlinux] [k] path_openat
> |
> ---path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 34.03% 0.00% ls [kernel.vmlinux] [k] link_path_walk
> |
> ---link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 34.03% 0.00% ls [kernel.vmlinux] [k] inode_permission
> |
> ---inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 34.03% 0.00% ls [kernel.vmlinux] [k] __inode_permission
> |
> ---__inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.75% 0.00% ls [kernel.vmlinux] [k] irq_work_interrupt
> |
> ---irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.75% 0.00% ls [kernel.vmlinux] [k] smp_irq_work_interrupt
> |
> ---smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.75% 0.00% ls [kernel.vmlinux] [k] irq_work_run
> |
> ---irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.75% 0.00% ls [kernel.vmlinux] [k] irq_work_run_list
> |
> ---irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.75% 0.00% ls [kernel.vmlinux] [k] perf_duration_warn
> |
> ---perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.75% 0.00% ls [kernel.vmlinux] [k] printk
> |
> ---printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.75% 0.00% ls [kernel.vmlinux] [k] vprintk_default
> |
> ---vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.75% 0.00% ls [kernel.vmlinux] [k] vprintk_emit
> |
> ---vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.75% 0.00% ls [kernel.vmlinux] [k] console_unlock
> |
> ---console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.43% 0.00% ls [kernel.vmlinux] [k] call_console_drivers.constprop.27
> |
> ---call_console_drivers.constprop.27
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.43% 0.00% ls [kernel.vmlinux] [k] univ8250_console_write
> |
> ---univ8250_console_write
> call_console_drivers.constprop.27
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.43% 0.00% ls [kernel.vmlinux] [k] uart_console_write
> |
> ---uart_console_write
> univ8250_console_write
> call_console_drivers.constprop.27
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 33.43% 0.00% ls [kernel.vmlinux] [k] serial8250_console_putchar
> |
> ---serial8250_console_putchar
> uart_console_write
> univ8250_console_write
> call_console_drivers.constprop.27
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 28.96% 0.00% ls [kernel.vmlinux] [k] wait_for_xmitr
> |
> ---wait_for_xmitr
> serial8250_console_putchar
> uart_console_write
> univ8250_console_write
> call_console_drivers.constprop.27
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 17.71% 0.00% ls libc-2.18.so [.] __GI___libc_write
> |
> ---__GI___libc_write
> |
> |--16.81%-- 0x657461746f6e6e61
> |
> |--10.79%-- 0x6e69746c69756220
> |
> |--8.37%-- 0x909632e66666964
> |
> |--7.00%-- 0x1dbdc70
> |
> |--6.67%-- 0x96f2e68636e6562
> |
> |--5.30%-- 0x2d6469646c697562
> |
> |--4.93%-- 0
> |
> |--4.51%-- 0x9096f2e61746164
> |
> |--3.30%-- 0x6f2e7473696c7665
> --32.32%-- [...]
>
> 14.14% 0.41% ls [kernel.vmlinux] [k] __const_udelay
> |
> ---__const_udelay
> |
> |--97.12%-- wait_for_xmitr
> | serial8250_console_putchar
> | uart_console_write
> | univ8250_console_write
> | call_console_drivers.constprop.27
> | console_unlock
> | vprintk_emit
> | vprintk_default
> | printk
> | perf_duration_warn
> | irq_work_run_list
> | irq_work_run
> | smp_irq_work_interrupt
> | irq_work_interrupt
> | __inode_permission
> | inode_permission
> | link_path_walk
> | path_openat
> | do_filp_open
> | do_sys_open
> | sys_open
> | entry_SYSCALL_64_fastpath
> | open64
> | 0x686361632e6f732e
> |
> --2.88%-- serial8250_console_putchar
> uart_console_write
> univ8250_console_write
> call_console_drivers.constprop.27
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 13.75% 13.75% ls [kernel.vmlinux] [k] io_serial_in
> |
> ---io_serial_in
> wait_for_xmitr
> serial8250_console_putchar
> uart_console_write
> univ8250_console_write
> call_console_drivers.constprop.27
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 13.45% 0.00% ls [kernel.vmlinux] [k] sys_write
> |
> ---sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> |
> |--14.21%-- 0x6e69746c69756220
> |
> |--11.03%-- 0x909632e66666964
> |
> |--10.54%-- 0x657461746f6e6e61
> |
> |--9.22%-- 0x1dbdc70
> |
> |--6.50%-- 0
> |
> |--5.94%-- 0x9096f2e61746164
> --42.57%-- [...]
>
> 13.45% 0.00% ls [kernel.vmlinux] [k] vfs_write
> |
> ---vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> |
> |--14.21%-- 0x6e69746c69756220
> |
> |--11.03%-- 0x909632e66666964
> |
> |--10.54%-- 0x657461746f6e6e61
> |
> |--9.22%-- 0x1dbdc70
> |
> |--6.50%-- 0
> |
> |--5.94%-- 0x9096f2e61746164
> --42.57%-- [...]
>
> 13.45% 0.00% ls [kernel.vmlinux] [k] __vfs_write
> |
> ---__vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> |
> |--14.21%-- 0x6e69746c69756220
> |
> |--11.03%-- 0x909632e66666964
> |
> |--10.54%-- 0x657461746f6e6e61
> |
> |--9.22%-- 0x1dbdc70
> |
> |--6.50%-- 0
> |
> |--5.94%-- 0x9096f2e61746164
> --42.57%-- [...]
>
> 13.45% 0.00% ls [kernel.vmlinux] [k] tty_write
> |
> ---tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> |
> |--14.21%-- 0x6e69746c69756220
> |
> |--11.03%-- 0x909632e66666964
> |
> |--10.54%-- 0x657461746f6e6e61
> |
> |--9.22%-- 0x1dbdc70
> |
> |--6.50%-- 0
> |
> |--5.94%-- 0x9096f2e61746164
> --42.57%-- [...]
>
> 13.45% 0.00% ls [kernel.vmlinux] [k] n_tty_write
> |
> ---n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> |
> |--14.21%-- 0x6e69746c69756220
> |
> |--11.03%-- 0x909632e66666964
> |
> |--10.54%-- 0x657461746f6e6e61
> |
> |--9.22%-- 0x1dbdc70
> |
> |--6.50%-- 0
> |
> |--5.94%-- 0x9096f2e61746164
> --42.57%-- [...]
>
> 12.39% 12.39% ls [kernel.vmlinux] [k] delay_tsc
> |
> ---delay_tsc
> |
> |--88.16%-- __const_udelay
> | wait_for_xmitr
> | serial8250_console_putchar
> | uart_console_write
> | univ8250_console_write
> | call_console_drivers.constprop.27
> | console_unlock
> | vprintk_emit
> | vprintk_default
> | printk
> | perf_duration_warn
> | irq_work_run_list
> | irq_work_run
> | smp_irq_work_interrupt
> | irq_work_interrupt
> | __inode_permission
> | inode_permission
> | link_path_walk
> | path_openat
> | do_filp_open
> | do_sys_open
> | sys_open
> | entry_SYSCALL_64_fastpath
> | open64
> | 0x686361632e6f732e
> |
> --11.84%-- wait_for_xmitr
> serial8250_console_putchar
> uart_console_write
> univ8250_console_write
> call_console_drivers.constprop.27
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 9.88% 0.00% ls [unknown] [.] 0x0000000000841f0f
> |
> ---0x841f0f
>
> 9.16% 0.00% ls [kernel.vmlinux] [k] pty_write
> |
> ---pty_write
> |
> |--45.92%-- n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--72.50%-- 0x6e69746c69756220
> | |
> | --27.50%-- 0x909632e66666964
> |
> |--31.59%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--69.57%-- 0x657461746f6e6e61
> | |
> | --30.43%-- 0x1dbdc70
> |
> --22.49%-- tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 9.16% 0.00% ls [kernel.vmlinux] [k] tty_flip_buffer_push
> |
> ---tty_flip_buffer_push
> pty_write
> |
> |--45.92%-- n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--72.50%-- 0x6e69746c69756220
> | |
> | --27.50%-- 0x909632e66666964
> |
> |--31.59%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--69.57%-- 0x657461746f6e6e61
> | |
> | --30.43%-- 0x1dbdc70
> |
> --22.49%-- tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 9.16% 0.00% ls [kernel.vmlinux] [k] tty_schedule_flip
> |
> ---tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--45.92%-- n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--72.50%-- 0x6e69746c69756220
> | |
> | --27.50%-- 0x909632e66666964
> |
> |--31.59%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--69.57%-- 0x657461746f6e6e61
> | |
> | --30.43%-- 0x1dbdc70
> |
> --22.49%-- tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 9.16% 0.00% ls [kernel.vmlinux] [k] queue_work_on
> |
> ---queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--45.92%-- n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--72.50%-- 0x6e69746c69756220
> | |
> | --27.50%-- 0x909632e66666964
> |
> |--31.59%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--69.57%-- 0x657461746f6e6e61
> | |
> | --30.43%-- 0x1dbdc70
> |
> --22.49%-- tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 9.16% 0.00% ls [kernel.vmlinux] [k] __queue_work
> |
> ---__queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--45.92%-- n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--72.50%-- 0x6e69746c69756220
> | |
> | --27.50%-- 0x909632e66666964
> |
> |--31.59%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--69.57%-- 0x657461746f6e6e61
> | |
> | --30.43%-- 0x1dbdc70
> |
> --22.49%-- tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 9.16% 1.30% ls [kernel.vmlinux] [k] insert_work
> |
> ---insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--45.92%-- n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--72.50%-- 0x6e69746c69756220
> | |
> | --27.50%-- 0x909632e66666964
> |
> |--31.59%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--69.57%-- 0x657461746f6e6e61
> | |
> | --30.43%-- 0x1dbdc70
> |
> --22.49%-- tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 8.41% 0.00% ls [unknown] [.] 0000000000000000
> |
> ---0
> |
> |--15.30%-- 0x632e74617473
> |
> |--12.88%-- 0
> |
> |--12.01%-- 0x72616863656d6974
> --59.81%-- [...]
>
> 7.92% 0.00% ls ls [.] 0xffffffffffc0e1cf
> |
> ---0xe1cf
> 0x841f0f
>
> 6.97% 0.00% ls [kernel.vmlinux] [k] wake_up_worker
> |
> ---wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--37.80%-- n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--72.50%-- 0x6e69746c69756220
> | |
> | --27.50%-- 0x909632e66666964
> |
> |--32.63%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | --100.00%-- 0x657461746f6e6e61
> |
> --29.57%-- tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 6.97% 0.00% ls [kernel.vmlinux] [k] wake_up_process
> |
> ---wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--37.80%-- n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--72.50%-- 0x6e69746c69756220
> | |
> | --27.50%-- 0x909632e66666964
> |
> |--32.63%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | --100.00%-- 0x657461746f6e6e61
> |
> --29.57%-- tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 6.97% 0.00% ls [kernel.vmlinux] [k] try_to_wake_up
> |
> ---try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--37.80%-- n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--72.50%-- 0x6e69746c69756220
> | |
> | --27.50%-- 0x909632e66666964
> |
> |--32.63%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | --100.00%-- 0x657461746f6e6e61
> |
> --29.57%-- tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 6.97% 0.00% ls [kernel.vmlinux] [k] ttwu_do_activate.constprop.92
> |
> ---ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--37.80%-- n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--72.50%-- 0x6e69746c69756220
> | |
> | --27.50%-- 0x909632e66666964
> |
> |--32.63%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | --100.00%-- 0x657461746f6e6e61
> |
> --29.57%-- tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 5.94% 5.94% ls libc-2.18.so [.] get_next_seq
> |
> ---get_next_seq
> 0xe1cf
> 0x841f0f
>
> 5.80% 0.00% ls [kernel.vmlinux] [k] __schedule
> |
> ---__schedule
> |
> |--73.77%-- preempt_schedule_common
> | _cond_resched
> | mutex_lock
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--28.65%-- 0
> | |
> | |--26.18%-- 0x9096f2e61746164
> | |
> | |--24.86%-- 0x909632e66666964
> | |
> | --20.31%-- 0x1dbdc70
> |
> --26.23%-- schedule
> prepare_exit_to_usermode
> syscall_return_slowpath
> int_ret_from_sys_call
> __GI___libc_write
> |
> |--61.62%-- 0x2d6469646c697562
> |
> --38.38%-- 0x6f2e7473696c7665
>
> 5.75% 1.94% ls libc-2.18.so [.] __getdents64
> |
> ---__getdents64
> |
> |--33.68%-- 0x616863656d69742d
> --66.32%-- [...]
>
> 5.04% 0.00% ls [kernel.vmlinux] [k] 0x000000007f47cb44
> |
> ---0x27cb44
> entry_SYSCALL_64_fastpath
> |
> |--15.40%-- _exit
> | __run_exit_handlers
> | 0
> --84.60%-- [...]
>
> 5.04% 0.00% ls [kernel.vmlinux] [k] do_group_exit
> |
> ---do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
> |
> |--15.40%-- _exit
> | __run_exit_handlers
> | 0
> --84.60%-- [...]
>
> 5.04% 0.78% ls [kernel.vmlinux] [k] do_exit
> |
> ---do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
> |
> |--15.40%-- _exit
> | __run_exit_handlers
> | 0
> --84.60%-- [...]
>
> 4.96% 0.00% ls [kernel.vmlinux] [k] do_output_char
> |
> ---do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> |
> |--28.59%-- 0x657461746f6e6e61
> |
> |--12.51%-- 0x1dbdc70
> --58.90%-- [...]
>
> 4.79% 4.79% ls [kernel.vmlinux] [k] native_write_msr_safe
> |
> ---native_write_msr_safe
> |
> |--37.79%-- __intel_pmu_disable_all
> | intel_pmu_disable_all
> | x86_pmu_disable
> | perf_pmu_disable
> | ctx_sched_out
> | __perf_event_task_sched_out
> | __schedule
> | |
> | |--51.77%-- schedule
> | | prepare_exit_to_usermode
> | | syscall_return_slowpath
> | | int_ret_from_sys_call
> | | __GI___libc_write
> | | 0x2d6469646c697562
> | |
> | --48.23%-- preempt_schedule_common
> | _cond_resched
> | mutex_lock
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | 0
> |
> |--32.55%-- __GI___libc_write
> | 0x657461746f6e6e61
> |
> |--29.58%-- __intel_pmu_enable_all.isra.9
> | intel_pmu_enable_all
> | x86_pmu_enable
> | perf_pmu_enable
> | |
> | |--56.32%-- perf_event_context_sched_in
> | | |
> | | |--100.00%-- __perf_event_task_sched_in
> | | | finish_task_switch
> | | | __schedule
> | | | preempt_schedule_common
> | | | _cond_resched
> | | | mutex_lock
> | | | n_tty_write
> | | | tty_write
> | | | __vfs_write
> | | | vfs_write
> | | | sys_write
> | | | entry_SYSCALL_64_fastpath
> | | | __GI___libc_write
> | | | 0x9096f2e61746164
> | | --0.00%-- [...]
> | |
> | --43.68%-- perf_pmu_sched_task
> | __perf_event_task_sched_out
> | __schedule
> | preempt_schedule_common
> | _cond_resched
> | mutex_lock
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | 0x1dbdc70
> --0.08%-- [...]
>
> 4.28% 0.00% ls [kernel.vmlinux] [k] mutex_lock
> |
> ---mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> |
> |--20.42%-- 0
> |
> |--18.66%-- 0x9096f2e61746164
> |
> |--17.71%-- 0x909632e66666964
> |
> |--14.47%-- 0x1dbdc70
> --28.74%-- [...]
>
> 4.28% 0.00% ls [kernel.vmlinux] [k] _cond_resched
> |
> ---_cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> |
> |--20.42%-- 0
> |
> |--18.66%-- 0x9096f2e61746164
> |
> |--17.71%-- 0x909632e66666964
> |
> |--14.47%-- 0x1dbdc70
> --28.74%-- [...]
>
> 4.28% 0.00% ls [kernel.vmlinux] [k] preempt_schedule_common
> |
> ---preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> |
> |--20.42%-- 0
> |
> |--18.66%-- 0x9096f2e61746164
> |
> |--17.71%-- 0x909632e66666964
> |
> |--14.47%-- 0x1dbdc70
> --28.74%-- [...]
>
> 4.06% 4.06% ls [kernel.vmlinux] [k] io_serial_out
> |
> ---io_serial_out
> serial8250_console_putchar
> uart_console_write
> univ8250_console_write
> call_console_drivers.constprop.27
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 4.04% 4.04% ls ls [.] 0x0000000000006686
> |
> ---0x6686
>
> 4.04% 0.00% ls ls [.] 0xffffffffffc06686
> |
> ---0x6686
>
> 3.81% 0.00% ls [kernel.vmlinux] [k] sys_getdents
> |
> ---sys_getdents
> entry_SYSCALL_64_fastpath
> __getdents64
>
> 3.81% 0.00% ls [kernel.vmlinux] [k] iterate_dir
> |
> ---iterate_dir
> sys_getdents
> entry_SYSCALL_64_fastpath
> __getdents64
>
> 3.81% 0.00% ls [ext4] [k] ext4_readdir
> |
> ---ext4_readdir
> iterate_dir
> sys_getdents
> entry_SYSCALL_64_fastpath
> __getdents64
>
> 3.81% 0.00% ls [ext4] [k] ext4_htree_fill_tree
> |
> ---ext4_htree_fill_tree
> ext4_readdir
> iterate_dir
> sys_getdents
> entry_SYSCALL_64_fastpath
> __getdents64
>
> 3.81% 0.00% ls [ext4] [k] htree_dirblock_to_tree
> |
> ---htree_dirblock_to_tree
> ext4_htree_fill_tree
> ext4_readdir
> iterate_dir
> sys_getdents
> entry_SYSCALL_64_fastpath
> __getdents64
>
> 3.64% 0.00% ls [kernel.vmlinux] [k] activate_task
> |
> ---activate_task
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--56.57%-- tty_put_char
> | do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> |
> |--23.55%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> |
> --19.88%-- n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x909632e66666964
>
> 3.64% 0.00% ls [kernel.vmlinux] [k] enqueue_task
> |
> ---enqueue_task
> activate_task
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--56.57%-- tty_put_char
> | do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> |
> |--23.55%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> |
> --19.88%-- n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x909632e66666964
>
> 3.64% 0.00% ls [kernel.vmlinux] [k] enqueue_task_fair
> |
> ---enqueue_task_fair
> enqueue_task
> activate_task
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--56.57%-- tty_put_char
> | do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> |
> |--23.55%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> |
> --19.88%-- n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x909632e66666964
>
> 3.38% 0.00% ls ld-2.18.so [.] _dl_map_object
> |
> ---_dl_map_object
> |
> |--45.27%-- 0x21eb10
> | 0
> |
> |--45.27%-- 0x213988
> | 0
> |
> --9.45%-- 0x21e640
> 0
>
> 3.27% 0.00% ls ld-2.18.so [.] _dl_sysdep_start
> |
> ---_dl_sysdep_start
>
> 3.27% 0.00% ls ld-2.18.so [.] dl_main
> |
> ---dl_main
> _dl_sysdep_start
>
> 3.08% 0.00% ls ld-2.18.so [.] mmap64
> |
> ---mmap64
> |
> |--50.39%-- _dl_check_all_versions
> |
> --49.61%-- _dl_map_object
> 0x213988
> 0
>
> 3.08% 0.00% ls [kernel.vmlinux] [k] sys_mmap
> |
> ---sys_mmap
> entry_SYSCALL_64_fastpath
> mmap64
> |
> |--50.39%-- _dl_check_all_versions
> |
> --49.61%-- _dl_map_object
> 0x213988
> 0
>
> 3.08% 0.00% ls [kernel.vmlinux] [k] sys_mmap_pgoff
> |
> ---sys_mmap_pgoff
> sys_mmap
> entry_SYSCALL_64_fastpath
> mmap64
> |
> |--50.39%-- _dl_check_all_versions
> |
> --49.61%-- _dl_map_object
> 0x213988
> 0
>
> 3.08% 0.00% ls [kernel.vmlinux] [k] vm_mmap_pgoff
> |
> ---vm_mmap_pgoff
> sys_mmap_pgoff
> sys_mmap
> entry_SYSCALL_64_fastpath
> mmap64
> |
> |--50.39%-- _dl_check_all_versions
> |
> --49.61%-- _dl_map_object
> 0x213988
> 0
>
> 3.08% 0.00% ls [kernel.vmlinux] [k] do_mmap_pgoff
> |
> ---do_mmap_pgoff
> vm_mmap_pgoff
> sys_mmap_pgoff
> sys_mmap
> entry_SYSCALL_64_fastpath
> mmap64
> |
> |--50.39%-- _dl_check_all_versions
> |
> --49.61%-- _dl_map_object
> 0x213988
> 0
>
> 3.08% 0.00% ls [kernel.vmlinux] [k] mmap_region
> |
> ---mmap_region
> do_mmap_pgoff
> vm_mmap_pgoff
> sys_mmap_pgoff
> sys_mmap
> entry_SYSCALL_64_fastpath
> mmap64
> |
> |--50.39%-- _dl_check_all_versions
> |
> --49.61%-- _dl_map_object
> 0x213988
> 0
>
> 3.03% 0.00% ls [kernel.vmlinux] [k] mmput
> |
> ---mmput
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 3.03% 0.00% ls [kernel.vmlinux] [k] exit_mmap
> |
> ---exit_mmap
> mmput
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 2.98% 0.00% ls [unknown] [.] 0x657461746f6e6e61
> |
> ---0x657461746f6e6e61
>
> 2.79% 0.64% ls [kernel.vmlinux] [k] finish_task_switch
> |
> ---finish_task_switch
> __schedule
> preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> |
> |--28.65%-- 0x9096f2e61746164
> |
> |--27.20%-- 0x909632e66666964
> --44.14%-- [...]
>
> 2.70% 0.00% ls [kernel.vmlinux] [k] int_ret_from_sys_call
> |
> ---int_ret_from_sys_call
> __GI___libc_write
> |
> |--43.71%-- 0x96f2e68636e6562
> |
> |--34.69%-- 0x2d6469646c697562
> |
> --21.61%-- 0x6f2e7473696c7665
>
> 2.70% 0.00% ls [kernel.vmlinux] [k] syscall_return_slowpath
> |
> ---syscall_return_slowpath
> int_ret_from_sys_call
> __GI___libc_write
> |
> |--43.71%-- 0x96f2e68636e6562
> |
> |--34.69%-- 0x2d6469646c697562
> |
> --21.61%-- 0x6f2e7473696c7665
>
> 2.70% 1.18% ls [kernel.vmlinux] [k] prepare_exit_to_usermode
> |
> ---prepare_exit_to_usermode
> syscall_return_slowpath
> int_ret_from_sys_call
> __GI___libc_write
> |
> |--43.71%-- 0x96f2e68636e6562
> |
> |--34.69%-- 0x2d6469646c697562
> |
> --21.61%-- 0x6f2e7473696c7665
>
> 2.43% 0.00% ls [kernel.vmlinux] [k] __perf_event_task_sched_out
> |
> ---__perf_event_task_sched_out
> __schedule
> |
> |--61.42%-- preempt_schedule_common
> | _cond_resched
> | mutex_lock
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | |--58.52%-- 0
> | |
> | --41.48%-- 0x1dbdc70
> |
> --38.58%-- schedule
> prepare_exit_to_usermode
> syscall_return_slowpath
> int_ret_from_sys_call
> __GI___libc_write
> 0x2d6469646c697562
>
> 2.30% 0.00% ls ls [.] 0xffffffffffc06dcb
> |
> ---0x6dcb
> 0
> |
> |--56.03%-- 0x632e74617473
> |
> --43.97%-- 0x72616863656d6974
>
> 2.26% 1.63% ls ld-2.18.so [.] do_lookup_x
> |
> ---do_lookup_x
>
> 2.16% 1.54% ls [kernel.vmlinux] [k] nmi
> |
> ---nmi
> |
> |--63.15%-- __const_udelay
> | wait_for_xmitr
> | serial8250_console_putchar
> | uart_console_write
> | univ8250_console_write
> | call_console_drivers.constprop.27
> | console_unlock
> | vprintk_emit
> | vprintk_default
> | printk
> | perf_duration_warn
> | irq_work_run_list
> | irq_work_run
> | smp_irq_work_interrupt
> | irq_work_interrupt
> | __inode_permission
> | inode_permission
> | link_path_walk
> | path_openat
> | do_filp_open
> | do_sys_open
> | sys_open
> | entry_SYSCALL_64_fastpath
> | open64
> | 0x686361632e6f732e
> |
> |--29.07%-- do_lookup_x
> |
> |--5.52%-- end_repeat_nmi
> | scheduler_tick
> | update_process_times
> | tick_sched_handle.isra.17
> | tick_sched_timer
> | __hrtimer_run_queues
> | hrtimer_interrupt
> | local_apic_timer_interrupt
> | smp_apic_timer_interrupt
> | apic_timer_interrupt
> | setup_new_exec
> | load_elf_binary
> | search_binary_handler
> | do_execveat_common.isra.32
> | sys_execve
> | return_from_execve
> | 0x7f9abb498a77
> |
> |--1.10%-- nmi_handle
> | default_do_nmi
> | do_nmi
> | end_repeat_nmi
> | scheduler_tick
> | update_process_times
> | tick_sched_handle.isra.17
> | tick_sched_timer
> | __hrtimer_run_queues
> | hrtimer_interrupt
> | local_apic_timer_interrupt
> | smp_apic_timer_interrupt
> | apic_timer_interrupt
> | setup_new_exec
> | load_elf_binary
> | search_binary_handler
> | do_execveat_common.isra.32
> | sys_execve
> | return_from_execve
> | 0x7f9abb498a77
> |
> |--0.63%-- perf_event_nmi_handler
> | nmi_handle
> | default_do_nmi
> | do_nmi
> | end_repeat_nmi
> | scheduler_tick
> | update_process_times
> | tick_sched_handle.isra.17
> | tick_sched_timer
> | __hrtimer_run_queues
> | hrtimer_interrupt
> | local_apic_timer_interrupt
> | smp_apic_timer_interrupt
> | apic_timer_interrupt
> | setup_new_exec
> | load_elf_binary
> | search_binary_handler
> | do_execveat_common.isra.32
> | sys_execve
> | return_from_execve
> | 0x7f9abb498a77
> |
> --0.52%-- scheduler_tick
> update_process_times
> tick_sched_handle.isra.17
> tick_sched_timer
> __hrtimer_run_queues
> hrtimer_interrupt
> local_apic_timer_interrupt
> smp_apic_timer_interrupt
> apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 2.15% 0.00% ls [kernel.vmlinux] [k] __perf_event_task_sched_in
> |
> ---__perf_event_task_sched_in
> finish_task_switch
> __schedule
> preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> |
> |--37.19%-- 0x9096f2e61746164
> |
> |--35.31%-- 0x909632e66666964
> --27.50%-- [...]
>
> 2.06% 0.00% ls [kernel.vmlinux] [k] tty_put_char
> |
> ---tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 2.06% 2.06% ls [kernel.vmlinux] [k] update_rq_runnable_avg
> |
> ---update_rq_runnable_avg
> enqueue_task_fair
> enqueue_task
> activate_task
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> tty_put_char
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 1.98% 1.98% ls libc-2.18.so [.] __strcoll_l
> |
> ---__strcoll_l
> 0xe1cf
> 0x841f0f
>
> 1.97% 1.35% ls [kernel.vmlinux] [k] perf_pmu_sched_task
> |
> ---perf_pmu_sched_task
> |
> |--68.52%-- __perf_event_task_sched_in
> | finish_task_switch
> | __schedule
> | preempt_schedule_common
> | _cond_resched
> | mutex_lock
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | |
> | --100.00%-- 0x909632e66666964
> |
> --31.48%-- __perf_event_task_sched_out
> __schedule
> preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x1dbdc70
>
> 1.95% 1.95% ls ls [.] 0x000000000000e270
> |
> ---0xe270
> 0x841f0f
>
> 1.95% 0.00% ls ls [.] 0xffffffffffc0e270
> |
> ---0xe270
> 0x841f0f
>
> 1.94% 0.00% ls [unknown] [.] 0x616863656d69742d
> |
> ---0x616863656d69742d
>
> 1.93% 0.00% ls [kernel.vmlinux] [k] unmap_vmas
> |
> ---unmap_vmas
> exit_mmap
> mmput
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 1.93% 0.93% ls [kernel.vmlinux] [k] unmap_single_vma
> |
> ---unmap_single_vma
> unmap_vmas
> exit_mmap
> mmput
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 1.93% 0.00% ls [ext4] [k] ext4fs_dirhash
> |
> ---ext4fs_dirhash
> htree_dirblock_to_tree
> ext4_htree_fill_tree
> ext4_readdir
> iterate_dir
> sys_getdents
> entry_SYSCALL_64_fastpath
> __getdents64
>
> 1.93% 1.93% ls [ext4] [k] str2hashbuf_signed
> |
> ---str2hashbuf_signed
> ext4fs_dirhash
> htree_dirblock_to_tree
> ext4_htree_fill_tree
> ext4_readdir
> iterate_dir
> sys_getdents
> entry_SYSCALL_64_fastpath
> __getdents64
>
> 1.91% 0.00% ls [unknown] [.] 0x6e69746c69756220
> |
> ---0x6e69746c69756220
>
> 1.91% 0.00% ls [kernel.vmlinux] [k] ttwu_do_wakeup
> |
> ---ttwu_do_wakeup
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x6e69746c69756220
>
> 1.91% 0.00% ls [kernel.vmlinux] [k] check_preempt_curr
> |
> ---check_preempt_curr
> ttwu_do_wakeup
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x6e69746c69756220
>
> 1.91% 0.00% ls [kernel.vmlinux] [k] check_preempt_wakeup
> |
> ---check_preempt_wakeup
> check_preempt_curr
> ttwu_do_wakeup
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x6e69746c69756220
>
> 1.91% 1.91% ls [kernel.vmlinux] [k] set_next_buddy
> |
> ---set_next_buddy
> check_preempt_wakeup
> check_preempt_curr
> ttwu_do_wakeup
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x6e69746c69756220
>
> 1.89% 1.89% ls [ext4] [k] ext4_htree_store_dirent
> |
> ---ext4_htree_store_dirent
> htree_dirblock_to_tree
> ext4_htree_fill_tree
> ext4_readdir
> iterate_dir
> sys_getdents
> entry_SYSCALL_64_fastpath
> __getdents64
>
> 1.85% 1.85% ls libc-2.18.so [.] __strcmp_sse2
> |
> ---__strcmp_sse2
>
> 1.82% 0.00% ls [unknown] [.] 0x6f74207367756220
> |
> ---0x6f74207367756220
>
> 1.82% 1.82% ls libc-2.18.so [.] strlen
> |
> ---strlen
> 0x6f74207367756220
>
> 1.81% 0.00% ls [kernel.vmlinux] [k] ctx_sched_out
> |
> ---ctx_sched_out
> __perf_event_task_sched_out
> __schedule
> |
> |--51.77%-- schedule
> | prepare_exit_to_usermode
> | syscall_return_slowpath
> | int_ret_from_sys_call
> | __GI___libc_write
> | 0x2d6469646c697562
> |
> --48.23%-- preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0
>
> 1.81% 0.00% ls [kernel.vmlinux] [k] perf_pmu_disable
> |
> ---perf_pmu_disable
> ctx_sched_out
> __perf_event_task_sched_out
> __schedule
> |
> |--51.77%-- schedule
> | prepare_exit_to_usermode
> | syscall_return_slowpath
> | int_ret_from_sys_call
> | __GI___libc_write
> | 0x2d6469646c697562
> |
> --48.23%-- preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0
>
> 1.81% 0.00% ls [kernel.vmlinux] [k] x86_pmu_disable
> |
> ---x86_pmu_disable
> perf_pmu_disable
> ctx_sched_out
> __perf_event_task_sched_out
> __schedule
> |
> |--51.77%-- schedule
> | prepare_exit_to_usermode
> | syscall_return_slowpath
> | int_ret_from_sys_call
> | __GI___libc_write
> | 0x2d6469646c697562
> |
> --48.23%-- preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0
>
> 1.81% 0.00% ls [kernel.vmlinux] [k] intel_pmu_disable_all
> |
> ---intel_pmu_disable_all
> x86_pmu_disable
> perf_pmu_disable
> ctx_sched_out
> __perf_event_task_sched_out
> __schedule
> |
> |--51.77%-- schedule
> | prepare_exit_to_usermode
> | syscall_return_slowpath
> | int_ret_from_sys_call
> | __GI___libc_write
> | 0x2d6469646c697562
> |
> --48.23%-- preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0
>
> 1.81% 0.00% ls [kernel.vmlinux] [k] __intel_pmu_disable_all
> |
> ---__intel_pmu_disable_all
> intel_pmu_disable_all
> x86_pmu_disable
> perf_pmu_disable
> ctx_sched_out
> __perf_event_task_sched_out
> __schedule
> |
> |--51.77%-- schedule
> | prepare_exit_to_usermode
> | syscall_return_slowpath
> | int_ret_from_sys_call
> | __GI___libc_write
> | 0x2d6469646c697562
> |
> --48.23%-- preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0
>
> 1.76% 0.00% ls [unknown] [.] 0x00401f0fc3f30678
> |
> ---0x401f0fc3f30678
>
> 1.76% 1.76% ls libc-2.18.so [.] _dl_addr
> |
> ---_dl_addr
> 0x401f0fc3f30678
>
> 1.72% 0.00% ls ls [.] 0xffffffffffc06438
> |
> ---0x6438
>
> 1.72% 1.72% ls ls [.] 0x0000000000005b4d
> |
> ---0x5b4d
> 0x6438
>
> 1.72% 0.00% ls ls [.] 0xffffffffffc05b4d
> |
> ---0x5b4d
> 0x6438
>
> 1.70% 1.70% ls libpthread-2.18.so [.] frame_dummy
> |
> ---frame_dummy
>
> 1.68% 0.00% ls ld-2.18.so [.] mprotect
> |
> ---mprotect
> dl_main
> _dl_sysdep_start
>
> 1.68% 0.00% ls [kernel.vmlinux] [k] sys_mprotect
> |
> ---sys_mprotect
> entry_SYSCALL_64_fastpath
> mprotect
> dl_main
> _dl_sysdep_start
>
> 1.68% 0.00% ls [kernel.vmlinux] [k] mprotect_fixup
> |
> ---mprotect_fixup
> sys_mprotect
> entry_SYSCALL_64_fastpath
> mprotect
> dl_main
> _dl_sysdep_start
>
> 1.68% 0.00% ls [kernel.vmlinux] [k] split_vma
> |
> ---split_vma
> mprotect_fixup
> sys_mprotect
> entry_SYSCALL_64_fastpath
> mprotect
> dl_main
> _dl_sysdep_start
>
> 1.68% 0.00% ls [kernel.vmlinux] [k] __split_vma.isra.34
> |
> ---__split_vma.isra.34
> split_vma
> mprotect_fixup
> sys_mprotect
> entry_SYSCALL_64_fastpath
> mprotect
> dl_main
> _dl_sysdep_start
>
> 1.68% 1.68% ls [kernel.vmlinux] [k] vma_interval_tree_remove
> |
> ---vma_interval_tree_remove
> __split_vma.isra.34
> split_vma
> mprotect_fixup
> sys_mprotect
> entry_SYSCALL_64_fastpath
> mprotect
> dl_main
> _dl_sysdep_start
>
> 1.59% 1.59% ls ld-2.18.so [.] _dl_relocate_object
> |
> ---_dl_relocate_object
> dl_main
> _dl_sysdep_start
>
> 1.58% 0.86% ls [kernel.vmlinux] [k] enqueue_entity
> |
> ---enqueue_entity
> enqueue_task_fair
> enqueue_task
> activate_task
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> |
> |--54.22%-- do_output_char
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> |
> --45.78%-- n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x909632e66666964
>
> 1.55% 0.00% ls ld-2.18.so [.] _dl_check_all_versions
> |
> ---_dl_check_all_versions
>
> 1.55% 0.00% ls [kernel.vmlinux] [k] perf_event_mmap
> |
> ---perf_event_mmap
> mmap_region
> do_mmap_pgoff
> vm_mmap_pgoff
> sys_mmap_pgoff
> sys_mmap
> entry_SYSCALL_64_fastpath
> mmap64
> _dl_check_all_versions
>
> 1.55% 0.00% ls [kernel.vmlinux] [k] perf_event_aux
> |
> ---perf_event_aux
> perf_event_mmap
> mmap_region
> do_mmap_pgoff
> vm_mmap_pgoff
> sys_mmap_pgoff
> sys_mmap
> entry_SYSCALL_64_fastpath
> mmap64
> _dl_check_all_versions
>
> 1.55% 1.55% ls [kernel.vmlinux] [k] perf_event_aux_ctx
> |
> ---perf_event_aux_ctx
> perf_event_aux
> perf_event_mmap
> mmap_region
> do_mmap_pgoff
> vm_mmap_pgoff
> sys_mmap_pgoff
> sys_mmap
> entry_SYSCALL_64_fastpath
> mmap64
> _dl_check_all_versions
>
> 1.53% 0.00% ls ld-2.18.so [.] 0xffff804cabb57988
> |
> ---0x213988
> 0
>
> 1.53% 0.00% ls ld-2.18.so [.] 0xffff804cabb62b10
> |
> ---0x21eb10
> 0
>
> 1.53% 0.00% ls ld-2.18.so [.] memset
> |
> ---memset
> _dl_map_object
> 0x21eb10
> 0
>
> 1.53% 0.00% ls [kernel.vmlinux] [k] page_fault
> |
> ---page_fault
> memset
> _dl_map_object
> 0x21eb10
> 0
>
> 1.53% 0.00% ls [kernel.vmlinux] [k] do_page_fault
> |
> ---do_page_fault
> page_fault
> memset
> _dl_map_object
> 0x21eb10
> 0
>
> 1.53% 0.00% ls [kernel.vmlinux] [k] __do_page_fault
> |
> ---__do_page_fault
> do_page_fault
> page_fault
> memset
> _dl_map_object
> 0x21eb10
> 0
>
> 1.53% 0.00% ls [kernel.vmlinux] [k] handle_mm_fault
> |
> ---handle_mm_fault
> __do_page_fault
> do_page_fault
> page_fault
> memset
> _dl_map_object
> 0x21eb10
> 0
>
> 1.53% 1.53% ls [kernel.vmlinux] [k] put_page
> |
> ---put_page
> handle_mm_fault
> __do_page_fault
> do_page_fault
> page_fault
> memset
> _dl_map_object
> 0x21eb10
> 0
>
> 1.53% 0.00% ls [kernel.vmlinux] [k] vma_link
> |
> ---vma_link
> mmap_region
> do_mmap_pgoff
> vm_mmap_pgoff
> sys_mmap_pgoff
> sys_mmap
> entry_SYSCALL_64_fastpath
> mmap64
> _dl_map_object
> 0x213988
> 0
>
> 1.53% 1.53% ls [kernel.vmlinux] [k] vma_interval_tree_insert
> |
> ---vma_interval_tree_insert
> vma_link
> mmap_region
> do_mmap_pgoff
> vm_mmap_pgoff
> sys_mmap_pgoff
> sys_mmap
> entry_SYSCALL_64_fastpath
> mmap64
> _dl_map_object
> 0x213988
> 0
>
> 1.52% 0.00% ls [kernel.vmlinux] [k] schedule
> |
> ---schedule
> prepare_exit_to_usermode
> syscall_return_slowpath
> int_ret_from_sys_call
> __GI___libc_write
> |
> |--61.62%-- 0x2d6469646c697562
> |
> --38.38%-- 0x6f2e7473696c7665
>
> 1.48% 0.00% ls [unknown] [.] 0x0909632e66666964
> |
> ---0x909632e66666964
>
> 1.44% 1.44% ls [kernel.vmlinux] [k] paranoid_entry
> |
> ---paranoid_entry
> __const_udelay
> wait_for_xmitr
> serial8250_console_putchar
> uart_console_write
> univ8250_console_write
> call_console_drivers.constprop.27
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 1.42% 0.00% ls [kernel.vmlinux] [k] perf_pmu_enable
> |
> ---perf_pmu_enable
> |
> |--56.32%-- perf_event_context_sched_in
> | |
> | |--100.00%-- __perf_event_task_sched_in
> | | finish_task_switch
> | | __schedule
> | | preempt_schedule_common
> | | _cond_resched
> | | mutex_lock
> | | n_tty_write
> | | tty_write
> | | __vfs_write
> | | vfs_write
> | | sys_write
> | | entry_SYSCALL_64_fastpath
> | | __GI___libc_write
> | | 0x9096f2e61746164
> | --0.00%-- [...]
> |
> --43.68%-- perf_pmu_sched_task
> __perf_event_task_sched_out
> __schedule
> preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x1dbdc70
>
> 1.42% 0.00% ls [kernel.vmlinux] [k] x86_pmu_enable
> |
> ---x86_pmu_enable
> perf_pmu_enable
> |
> |--56.32%-- perf_event_context_sched_in
> | |
> | |--100.00%-- __perf_event_task_sched_in
> | | finish_task_switch
> | | __schedule
> | | preempt_schedule_common
> | | _cond_resched
> | | mutex_lock
> | | n_tty_write
> | | tty_write
> | | __vfs_write
> | | vfs_write
> | | sys_write
> | | entry_SYSCALL_64_fastpath
> | | __GI___libc_write
> | | 0x9096f2e61746164
> | --0.00%-- [...]
> |
> --43.68%-- perf_pmu_sched_task
> __perf_event_task_sched_out
> __schedule
> preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x1dbdc70
>
> 1.42% 0.00% ls [kernel.vmlinux] [k] intel_pmu_enable_all
> |
> ---intel_pmu_enable_all
> x86_pmu_enable
> perf_pmu_enable
> |
> |--56.32%-- perf_event_context_sched_in
> | |
> | |--100.00%-- __perf_event_task_sched_in
> | | finish_task_switch
> | | __schedule
> | | preempt_schedule_common
> | | _cond_resched
> | | mutex_lock
> | | n_tty_write
> | | tty_write
> | | __vfs_write
> | | vfs_write
> | | sys_write
> | | entry_SYSCALL_64_fastpath
> | | __GI___libc_write
> | | 0x9096f2e61746164
> | --0.00%-- [...]
> |
> --43.68%-- perf_pmu_sched_task
> __perf_event_task_sched_out
> __schedule
> preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x1dbdc70
>
> 1.42% 0.00% ls [kernel.vmlinux] [k] __intel_pmu_enable_all.isra.9
> |
> ---__intel_pmu_enable_all.isra.9
> intel_pmu_enable_all
> x86_pmu_enable
> perf_pmu_enable
> |
> |--56.32%-- perf_event_context_sched_in
> | |
> | |--100.00%-- __perf_event_task_sched_in
> | | finish_task_switch
> | | __schedule
> | | preempt_schedule_common
> | | _cond_resched
> | | mutex_lock
> | | n_tty_write
> | | tty_write
> | | __vfs_write
> | | vfs_write
> | | sys_write
> | | entry_SYSCALL_64_fastpath
> | | __GI___libc_write
> | | 0x9096f2e61746164
> | --0.00%-- [...]
> |
> --43.68%-- perf_pmu_sched_task
> __perf_event_task_sched_out
> __schedule
> preempt_schedule_common
> _cond_resched
> mutex_lock
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x1dbdc70
>
> 1.42% 0.00% ls [kernel.vmlinux] [k] wq_worker_waking_up
> |
> ---wq_worker_waking_up
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x657461746f6e6e61
>
> 1.42% 1.42% ls [kernel.vmlinux] [k] kthread_data
> |
> ---kthread_data
> wq_worker_waking_up
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> do_output_char
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x657461746f6e6e61
>
> 1.31% 0.04% ls [kernel.vmlinux] [k] do_nmi
> |
> ---do_nmi
> |
> |--52.08%-- end_repeat_nmi
> | |
> | |--46.71%-- vsnprintf
> | | sprintf
> | | print_time.part.12
> | | print_prefix
> | | msg_print_text
> | | console_unlock
> | | vprintk_emit
> | | vprintk_default
> | | printk
> | | perf_duration_warn
> | | irq_work_run_list
> | | irq_work_run
> | | smp_irq_work_interrupt
> | | irq_work_interrupt
> | | __inode_permission
> | | inode_permission
> | | link_path_walk
> | | path_openat
> | | do_filp_open
> | | do_sys_open
> | | sys_open
> | | entry_SYSCALL_64_fastpath
> | | open64
> | | 0x686361632e6f732e
> | |
> | |--41.63%-- __inode_permission
> | | inode_permission
> | | link_path_walk
> | | path_openat
> | | do_filp_open
> | | do_sys_open
> | | sys_open
> | | entry_SYSCALL_64_fastpath
> | | open64
> | | 0x686361632e6f732e
> | |
> | --11.66%-- scheduler_tick
> | update_process_times
> | tick_sched_handle.isra.17
> | tick_sched_timer
> | __hrtimer_run_queues
> | hrtimer_interrupt
> | local_apic_timer_interrupt
> | smp_apic_timer_interrupt
> | apic_timer_interrupt
> | setup_new_exec
> | load_elf_binary
> | search_binary_handler
> | do_execveat_common.isra.32
> | sys_execve
> | return_from_execve
> | 0x7f9abb498a77
> |
> --47.92%-- nmi
> do_lookup_x
>
> 1.29% 0.00% ls [unknown] [.] 0x0000632e74617473
> |
> ---0x632e74617473
>
> 1.29% 1.29% ls ls [.] 0x0000000000005a40
> |
> ---0x5a40
> 0x6dcb
> 0
> 0x632e74617473
>
> 1.29% 0.00% ls ls [.] 0xffffffffffc05a40
> |
> ---0x5a40
> 0x6dcb
> 0
> 0x632e74617473
>
> 1.27% 0.00% ls [kernel.vmlinux] [k] default_do_nmi
> |
> ---default_do_nmi
> do_nmi
> |
> |--50.48%-- end_repeat_nmi
> | |
> | |--49.78%-- vsnprintf
> | | sprintf
> | | print_time.part.12
> | | print_prefix
> | | msg_print_text
> | | console_unlock
> | | vprintk_emit
> | | vprintk_default
> | | printk
> | | perf_duration_warn
> | | irq_work_run_list
> | | irq_work_run
> | | smp_irq_work_interrupt
> | | irq_work_interrupt
> | | __inode_permission
> | | inode_permission
> | | link_path_walk
> | | path_openat
> | | do_filp_open
> | | do_sys_open
> | | sys_open
> | | entry_SYSCALL_64_fastpath
> | | open64
> | | 0x686361632e6f732e
> | |
> | |--44.37%-- __inode_permission
> | | inode_permission
> | | link_path_walk
> | | path_openat
> | | do_filp_open
> | | do_sys_open
> | | sys_open
> | | entry_SYSCALL_64_fastpath
> | | open64
> | | 0x686361632e6f732e
> | |
> | --5.85%-- scheduler_tick
> | update_process_times
> | tick_sched_handle.isra.17
> | tick_sched_timer
> | __hrtimer_run_queues
> | hrtimer_interrupt
> | local_apic_timer_interrupt
> | smp_apic_timer_interrupt
> | apic_timer_interrupt
> | setup_new_exec
> | load_elf_binary
> | search_binary_handler
> | do_execveat_common.isra.32
> | sys_execve
> | return_from_execve
> | 0x7f9abb498a77
> |
> --49.52%-- nmi
> do_lookup_x
>
> 1.27% 0.63% ls [kernel.vmlinux] [k] nmi_handle
> |
> ---nmi_handle
> default_do_nmi
> do_nmi
> |
> |--50.48%-- end_repeat_nmi
> | |
> | |--49.78%-- vsnprintf
> | | sprintf
> | | print_time.part.12
> | | print_prefix
> | | msg_print_text
> | | console_unlock
> | | vprintk_emit
> | | vprintk_default
> | | printk
> | | perf_duration_warn
> | | irq_work_run_list
> | | irq_work_run
> | | smp_irq_work_interrupt
> | | irq_work_interrupt
> | | __inode_permission
> | | inode_permission
> | | link_path_walk
> | | path_openat
> | | do_filp_open
> | | do_sys_open
> | | sys_open
> | | entry_SYSCALL_64_fastpath
> | | open64
> | | 0x686361632e6f732e
> | |
> | |--44.37%-- __inode_permission
> | | inode_permission
> | | link_path_walk
> | | path_openat
> | | do_filp_open
> | | do_sys_open
> | | sys_open
> | | entry_SYSCALL_64_fastpath
> | | open64
> | | 0x686361632e6f732e
> | |
> | --5.85%-- scheduler_tick
> | update_process_times
> | tick_sched_handle.isra.17
> | tick_sched_timer
> | __hrtimer_run_queues
> | hrtimer_interrupt
> | local_apic_timer_interrupt
> | smp_apic_timer_interrupt
> | apic_timer_interrupt
> | setup_new_exec
> | load_elf_binary
> | search_binary_handler
> | do_execveat_common.isra.32
> | sys_execve
> | return_from_execve
> | 0x7f9abb498a77
> |
> --49.52%-- nmi
> do_lookup_x
>
> 1.24% 0.00% ls [unknown] [.] 0x0000000001dbdc70
> |
> ---0x1dbdc70
>
> 1.23% 0.00% ls [kernel.vmlinux] [k] task_work_run
> |
> ---task_work_run
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 1.23% 0.00% ls [kernel.vmlinux] [k] ____fput
> |
> ---____fput
> task_work_run
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 1.23% 0.00% ls [kernel.vmlinux] [k] __fput
> |
> ---__fput
> ____fput
> task_work_run
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 1.23% 1.23% ls [kernel.vmlinux] [k] locks_remove_file
> |
> ---locks_remove_file
> __fput
> ____fput
> task_work_run
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 1.18% 0.00% ls [unknown] [.] 0x096f2e68636e6562
> |
> ---0x96f2e68636e6562
>
> 1.10% 0.00% ls [kernel.vmlinux] [k] tlb_finish_mmu
> |
> ---tlb_finish_mmu
> exit_mmap
> mmput
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 1.10% 0.00% ls [kernel.vmlinux] [k] tlb_flush_mmu_free
> |
> ---tlb_flush_mmu_free
> tlb_finish_mmu
> exit_mmap
> mmput
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 1.10% 0.00% ls [kernel.vmlinux] [k] free_pages_and_swap_cache
> |
> ---free_pages_and_swap_cache
> tlb_flush_mmu_free
> tlb_finish_mmu
> exit_mmap
> mmput
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 1.10% 1.10% ls [kernel.vmlinux] [k] release_pages
> |
> ---release_pages
> free_pages_and_swap_cache
> tlb_flush_mmu_free
> tlb_finish_mmu
> exit_mmap
> mmput
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 1.08% 1.08% ls ls [.] 0x0000000000006b20
> |
> ---0x6b20
> 0
> 0
>
> 1.08% 0.00% ls ls [.] 0xffffffffffc06b20
> |
> ---0x6b20
> 0
> 0
>
> 1.01% 0.00% ls [unknown] [.] 0x72616863656d6974
> |
> ---0x72616863656d6974
>
> 1.01% 1.01% ls ls [.] __ctype_get_mb_cur_max@plt
> |
> ---__ctype_get_mb_cur_max@plt
> 0x6dcb
> 0
> 0x72616863656d6974
>
> 1.01% 1.01% ls [kernel.vmlinux] [k] unmap_page_range
> |
> ---unmap_page_range
> unmap_single_vma
> unmap_vmas
> exit_mmap
> mmput
> do_exit
> do_group_exit
> 0x27cb44
> entry_SYSCALL_64_fastpath
>
> 0.94% 0.00% ls [unknown] [.] 0x2d6469646c697562
> |
> ---0x2d6469646c697562
>
> 0.89% 0.89% ls [kernel.vmlinux] [k] get_pwq.isra.18
> |
> ---get_pwq.isra.18
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
>
> 0.80% 0.00% ls [kernel.vmlinux] [k] end_repeat_nmi
> |
> ---end_repeat_nmi
> |
> |--39.76%-- vsnprintf
> | sprintf
> | print_time.part.12
> | print_prefix
> | msg_print_text
> | console_unlock
> | vprintk_emit
> | vprintk_default
> | printk
> | perf_duration_warn
> | irq_work_run_list
> | irq_work_run
> | smp_irq_work_interrupt
> | irq_work_interrupt
> | __inode_permission
> | inode_permission
> | link_path_walk
> | path_openat
> | do_filp_open
> | do_sys_open
> | sys_open
> | entry_SYSCALL_64_fastpath
> | open64
> | 0x686361632e6f732e
> |
> |--35.44%-- __inode_permission
> | inode_permission
> | link_path_walk
> | path_openat
> | do_filp_open
> | do_sys_open
> | sys_open
> | entry_SYSCALL_64_fastpath
> | open64
> | 0x686361632e6f732e
> |
> --24.80%-- scheduler_tick
> update_process_times
> tick_sched_handle.isra.17
> tick_sched_timer
> __hrtimer_run_queues
> hrtimer_interrupt
> local_apic_timer_interrupt
> smp_apic_timer_interrupt
> apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.80% 0.00% ls [kernel.vmlinux] [k] perf_event_context_sched_in
> |
> ---perf_event_context_sched_in
> |
> |--100.00%-- __perf_event_task_sched_in
> | finish_task_switch
> | __schedule
> | preempt_schedule_common
> | _cond_resched
> | mutex_lock
> | n_tty_write
> | tty_write
> | __vfs_write
> | vfs_write
> | sys_write
> | entry_SYSCALL_64_fastpath
> | __GI___libc_write
> | 0x9096f2e61746164
> --0.00%-- [...]
>
> 0.80% 0.00% ls [unknown] [.] 0x09096f2e61746164
> |
> ---0x9096f2e61746164
>
> 0.78% 0.00% ls libc-2.18.so [.] __run_exit_handlers
> |
> ---__run_exit_handlers
> 0
>
> 0.78% 0.00% ls libc-2.18.so [.] _exit
> |
> ---_exit
> __run_exit_handlers
> 0
>
> 0.72% 0.72% ls [kernel.vmlinux] [k] account_entity_enqueue
> |
> ---account_entity_enqueue
> enqueue_entity
> enqueue_task_fair
> enqueue_task
> activate_task
> ttwu_do_activate.constprop.92
> try_to_wake_up
> wake_up_process
> wake_up_worker
> insert_work
> __queue_work
> queue_work_on
> tty_schedule_flip
> tty_flip_buffer_push
> pty_write
> n_tty_write
> tty_write
> __vfs_write
> vfs_write
> sys_write
> entry_SYSCALL_64_fastpath
> __GI___libc_write
> 0x909632e66666964
>
> 0.62% 0.00% ls [kernel.vmlinux] [k] perf_event_nmi_handler
> |
> ---perf_event_nmi_handler
> nmi_handle
> default_do_nmi
> do_nmi
> end_repeat_nmi
> |
> |--51.70%-- vsnprintf
> | sprintf
> | print_time.part.12
> | print_prefix
> | msg_print_text
> | console_unlock
> | vprintk_emit
> | vprintk_default
> | printk
> | perf_duration_warn
> | irq_work_run_list
> | irq_work_run
> | smp_irq_work_interrupt
> | irq_work_interrupt
> | __inode_permission
> | inode_permission
> | link_path_walk
> | path_openat
> | do_filp_open
> | do_sys_open
> | sys_open
> | entry_SYSCALL_64_fastpath
> | open64
> | 0x686361632e6f732e
> |
> |--46.08%-- __inode_permission
> | inode_permission
> | link_path_walk
> | path_openat
> | do_filp_open
> | do_sys_open
> | sys_open
> | entry_SYSCALL_64_fastpath
> | open64
> | 0x686361632e6f732e
> |
> --2.22%-- scheduler_tick
> update_process_times
> tick_sched_handle.isra.17
> tick_sched_timer
> __hrtimer_run_queues
> hrtimer_interrupt
> local_apic_timer_interrupt
> smp_apic_timer_interrupt
> apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.60% 0.60% ls [kernel.vmlinux] [k] perf_sample_event_took
> |
> ---perf_sample_event_took
> perf_event_nmi_handler
> nmi_handle
> default_do_nmi
> do_nmi
> end_repeat_nmi
> |
> |--52.87%-- vsnprintf
> | sprintf
> | print_time.part.12
> | print_prefix
> | msg_print_text
> | console_unlock
> | vprintk_emit
> | vprintk_default
> | printk
> | perf_duration_warn
> | irq_work_run_list
> | irq_work_run
> | smp_irq_work_interrupt
> | irq_work_interrupt
> | __inode_permission
> | inode_permission
> | link_path_walk
> | path_openat
> | do_filp_open
> | do_sys_open
> | sys_open
> | entry_SYSCALL_64_fastpath
> | open64
> | 0x686361632e6f732e
> |
> --47.13%-- __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 0.58% 0.00% ls [unknown] [.] 0x6f2e7473696c7665
> |
> ---0x6f2e7473696c7665
>
> 0.58% 0.00% ls [kernel.vmlinux] [k] pick_next_task_fair
> |
> ---pick_next_task_fair
> __schedule
> schedule
> prepare_exit_to_usermode
> syscall_return_slowpath
> int_ret_from_sys_call
> __GI___libc_write
> 0x6f2e7473696c7665
>
> 0.58% 0.58% ls [kernel.vmlinux] [k] __enqueue_entity
> |
> ---__enqueue_entity
> pick_next_task_fair
> __schedule
> schedule
> prepare_exit_to_usermode
> syscall_return_slowpath
> int_ret_from_sys_call
> __GI___libc_write
> 0x6f2e7473696c7665
>
> 0.57% 0.00% ls libc-2.18.so [.] __GI___munmap
> |
> ---__GI___munmap
>
> 0.57% 0.00% ls [kernel.vmlinux] [k] sys_munmap
> |
> ---sys_munmap
> entry_SYSCALL_64_fastpath
> __GI___munmap
>
> 0.57% 0.00% ls [kernel.vmlinux] [k] vm_munmap
> |
> ---vm_munmap
> sys_munmap
> entry_SYSCALL_64_fastpath
> __GI___munmap
>
> 0.57% 0.00% ls [kernel.vmlinux] [k] do_munmap
> |
> ---do_munmap
> vm_munmap
> sys_munmap
> entry_SYSCALL_64_fastpath
> __GI___munmap
>
> 0.57% 0.00% ls [kernel.vmlinux] [k] remove_vma
> |
> ---remove_vma
> do_munmap
> vm_munmap
> sys_munmap
> entry_SYSCALL_64_fastpath
> __GI___munmap
>
> 0.57% 0.57% ls [kernel.vmlinux] [k] kmem_cache_free
> |
> ---kmem_cache_free
> remove_vma
> do_munmap
> vm_munmap
> sys_munmap
> entry_SYSCALL_64_fastpath
> __GI___munmap
>
> 0.32% 0.00% ls [kernel.vmlinux] [k] msg_print_text
> |
> ---msg_print_text
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 0.32% 0.00% ls [kernel.vmlinux] [k] print_prefix
> |
> ---print_prefix
> msg_print_text
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 0.32% 0.00% ls [kernel.vmlinux] [k] print_time.part.12
> |
> ---print_time.part.12
> print_prefix
> msg_print_text
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 0.32% 0.00% ls [kernel.vmlinux] [k] sprintf
> |
> ---sprintf
> print_time.part.12
> print_prefix
> msg_print_text
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 0.32% 0.00% ls [kernel.vmlinux] [k] vsnprintf
> |
> ---vsnprintf
> sprintf
> print_time.part.12
> print_prefix
> msg_print_text
> console_unlock
> vprintk_emit
> vprintk_default
> printk
> perf_duration_warn
> irq_work_run_list
> irq_work_run
> smp_irq_work_interrupt
> irq_work_interrupt
> __inode_permission
> inode_permission
> link_path_walk
> path_openat
> do_filp_open
> do_sys_open
> sys_open
> entry_SYSCALL_64_fastpath
> open64
> 0x686361632e6f732e
>
> 0.32% 0.00% ls ld-2.18.so [.] 0xffff804cabb62640
> |
> ---0x21e640
> 0
>
> 0.32% 0.32% ls ld-2.18.so [.] _dl_setup_hash
> |
> ---_dl_setup_hash
> _dl_map_object
> 0x21e640
> 0
>
> 0.29% 0.00% ls [unknown] [k] 0x00007f9abb498a77
> |
> ---0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] return_from_execve
> |
> ---return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] sys_execve
> |
> ---sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] do_execveat_common.isra.32
> |
> ---do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] search_binary_handler
> |
> ---search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] load_elf_binary
> |
> ---load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] setup_new_exec
> |
> ---setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] apic_timer_interrupt
> |
> ---apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] smp_apic_timer_interrupt
> |
> ---smp_apic_timer_interrupt
> apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] local_apic_timer_interrupt
> |
> ---local_apic_timer_interrupt
> smp_apic_timer_interrupt
> apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] hrtimer_interrupt
> |
> ---hrtimer_interrupt
> local_apic_timer_interrupt
> smp_apic_timer_interrupt
> apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] __hrtimer_run_queues
> |
> ---__hrtimer_run_queues
> hrtimer_interrupt
> local_apic_timer_interrupt
> smp_apic_timer_interrupt
> apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] tick_sched_timer
> |
> ---tick_sched_timer
> __hrtimer_run_queues
> hrtimer_interrupt
> local_apic_timer_interrupt
> smp_apic_timer_interrupt
> apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] tick_sched_handle.isra.17
> |
> ---tick_sched_handle.isra.17
> tick_sched_timer
> __hrtimer_run_queues
> hrtimer_interrupt
> local_apic_timer_interrupt
> smp_apic_timer_interrupt
> apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] update_process_times
> |
> ---update_process_times
> tick_sched_handle.isra.17
> tick_sched_timer
> __hrtimer_run_queues
> hrtimer_interrupt
> local_apic_timer_interrupt
> smp_apic_timer_interrupt
> apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.21% 0.00% ls [kernel.vmlinux] [k] scheduler_tick
> |
> ---scheduler_tick
> update_process_times
> tick_sched_handle.isra.17
> tick_sched_timer
> __hrtimer_run_queues
> hrtimer_interrupt
> local_apic_timer_interrupt
> smp_apic_timer_interrupt
> apic_timer_interrupt
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
> 0.08% 0.08% ls [kernel.vmlinux] [k] native_sched_clock
> |
> ---native_sched_clock
> 0x7f9abb498a77
>
> 0.00% 0.00% ls [kernel.vmlinux] [k] perf_event_exec
> |
> ---perf_event_exec
> setup_new_exec
> load_elf_binary
> search_binary_handler
> do_execveat_common.isra.32
> sys_execve
> return_from_execve
> 0x7f9abb498a77
>
>
>
> # Samples: 158 of event 'cpu/instructions,call-graph=no,time=0,period=20000/p'
> # Event count (approx.): 3762761
> #
> # Children Self Command Shared Object Symbol
> # ........ ........ ....... ................ ..................................
> #
> 5.87% 5.87% ls [unknown] [.] 0x00007fb353d5cf7e
>
> 4.84% 4.84% ls [kernel.vmlinux] [k] delay_tsc
>
> 3.77% 3.77% ls [kernel.vmlinux] [k] pick_next_task_fair
>
> 3.11% 3.11% ls [kernel.vmlinux] [k] unmap_page_range
>
> 2.94% 2.94% ls [kernel.vmlinux] [k] n_tty_write
>
> 2.48% 2.48% ls [unknown] [.] 0x000000000040669a
>
> 2.40% 2.40% ls [unknown] [.] 0x00007fb353d5cd1a
>
> 2.37% 2.37% ls [unknown] [.] 0x00007fb353d5cca4
>
> 2.37% 2.37% ls [unknown] [.] 0x00000000004066ca
>
> 2.25% 2.25% ls [unknown] [.] 0x00007fb353d5db87
>
> 2.03% 2.03% ls [unknown] [.] 0x00007fb353d5ccaa
>
> 1.98% 1.98% ls [unknown] [.] 0x00007fb353d5cc9c
>
> 1.97% 1.97% ls [unknown] [.] 0x0000000000405b2a
>
> 1.89% 1.89% ls [unknown] [.] 0x00007fb3546d43e0
>
> 1.83% 1.83% ls [unknown] [.] 0x00007fb353d5cef6
>
> 1.75% 1.75% ls [kernel.vmlinux] [k] ring_buffer_record_is_on
>
> 1.69% 1.69% ls [unknown] [.] 0x00007fb353d5cc3a
>
> 1.63% 1.63% ls [unknown] [.] 0x0000000000405611
>
> 1.47% 1.47% ls [kernel.vmlinux] [k] __fput
>
> 1.44% 1.44% ls [kernel.vmlinux] [k] release_pages
>
> 1.37% 1.37% ls [kernel.vmlinux] [k] perf_pmu_sched_task
>
> 1.34% 1.34% ls [unknown] [.] 0x00007fb353d54fed
>
> 1.33% 1.33% ls [kernel.vmlinux] [k] __memcpy
>
> 1.33% 1.33% ls [unknown] [.] 0x00007fb353d5df34
>
> 1.31% 1.31% ls [unknown] [.] 0x00007fb353d5ccdf
>
> 1.29% 1.29% ls [unknown] [.] 0x0000000000406a19
>
> 1.29% 1.29% ls [kernel.vmlinux] [k] page_remove_rmap
>
> 1.29% 1.29% ls [kernel.vmlinux] [k] do_set_pte
>
> 1.28% 1.28% ls [kernel.vmlinux] [k] __audit_syscall_exit
>
> 1.28% 1.28% ls [kernel.vmlinux] [k] enqueue_entity
>
> 1.28% 1.28% ls [ext4] [k] ext4fs_dirhash
>
> 1.26% 1.26% ls [kernel.vmlinux] [k] cpuacct_charge
>
> 1.24% 1.24% ls [kernel.vmlinux] [k] sched_clock
>
> 1.24% 1.24% ls [unknown] [.] 0x00007fb353d4bca5
>
> 1.22% 1.22% ls [unknown] [.] 0x00007fb353dfb6ac
>
> 1.21% 1.21% ls [ext4] [k] str2hashbuf_signed
>
> 1.21% 1.21% ls [unknown] [.] 0x00007fb3546c766a
>
> 1.20% 1.20% ls [ext4] [k] __ext4_check_dir_entry
>
> 1.13% 1.13% ls [kernel.vmlinux] [k] x86_pmu_disable
>
> 1.12% 1.12% ls [unknown] [.] 0x00007fb3546c5571
>
> 1.11% 1.11% ls [kernel.vmlinux] [k] vm_normal_page
>
> 1.09% 1.09% ls [unknown] [.] 0x00007fb3546cc246
>
> 1.06% 1.06% ls [unknown] [.] 0x00007fb3546cc21e
>
> 1.03% 1.03% ls [unknown] [.] 0x000000000040e6a0
>
> 1.01% 1.01% ls [unknown] [.] 0x00007fb3546c5ce3
>
> 0.88% 0.88% ls [unknown] [.] 0x00007fb3546c7814
>
> 0.88% 0.88% ls [kernel.vmlinux] [k] mark_page_accessed
>
> 0.87% 0.87% ls [unknown] [.] 0x00007fb3546c7960
>
> 0.78% 0.78% ls [unknown] [.] 0x000000000040e7ea
>
> 0.77% 0.77% ls [kernel.vmlinux] [k] security_mmap_file
>
> 0.66% 0.66% ls [unknown] [.] 0x000000000040f3c5
>
> 0.65% 0.65% ls [kernel.vmlinux] [k] enqueue_task_fair
>
> 0.63% 0.63% ls [kernel.vmlinux] [k] unlock_page
>
> 0.61% 0.61% ls [kernel.vmlinux] [k] place_entity
>
> 0.57% 0.57% ls [unknown] [.] 0x000000000040e808
>
> 0.56% 0.56% ls [kernel.vmlinux] [k] perf_event_aux_ctx
>
> 0.54% 0.54% ls [kernel.vmlinux] [k] __rb_insert_augmented
>
> 0.54% 0.54% ls [kernel.vmlinux] [k] update_min_vruntime
>
> 0.50% 0.50% ls [kernel.vmlinux] [k] update_curr
>
> 0.47% 0.47% ls [kernel.vmlinux] [k] vma_interval_tree_insert
>
> 0.47% 0.47% ls [kernel.vmlinux] [k] io_serial_in
>
> 0.47% 0.47% ls [kernel.vmlinux] [k] check_cfs_rq_runtime
>
> 0.46% 0.46% ls [kernel.vmlinux] [k] tracing_record_cmdline
>
> 0.46% 0.46% ls [kernel.vmlinux] [k] __dec_zone_page_state
>
> 0.42% 0.42% ls [kernel.vmlinux] [k] try_to_wake_up
>
> 0.40% 0.40% ls [kernel.vmlinux] [k] insert_work
>
> 0.40% 0.40% ls [kernel.vmlinux] [k] put_prev_entity
>
> 0.40% 0.40% ls [kernel.vmlinux] [k] avc_has_perm_noaudit
>
> 0.38% 0.38% ls [kernel.vmlinux] [k] __list_del_entry
>
> 0.38% 0.38% ls [unknown] [.] 0x0000000000405852
>
> 0.36% 0.36% ls [kernel.vmlinux] [k] __intel_pmu_disable_all
>
> 0.35% 0.35% ls [kernel.vmlinux] [k] ttwu_do_activate.constprop.92
>
> 0.35% 0.35% ls [kernel.vmlinux] [k] mem_cgroup_begin_page_stat
>
> 0.34% 0.34% ls [kernel.vmlinux] [k] perf_ctx_unlock
>
> 0.32% 0.32% ls [unknown] [.] 0x0000000000405b46
>
> 0.32% 0.32% ls [unknown] [.] 0x0000000000405811
>
> 0.31% 0.31% ls [unknown] [.] 0x00007fb3546c54fa
>
> 0.31% 0.31% ls [kernel.vmlinux] [k] rb_next
>
> 0.31% 0.31% ls [kernel.vmlinux] [k] tracing_is_on
>
> 0.30% 0.30% ls [unknown] [.] 0x00007fb3546c553d
>
> 0.29% 0.29% ls [unknown] [.] 0x00007fb3546cb597
>
> 0.20% 0.20% ls [kernel.vmlinux] [k] format_decode
>
> 0.18% 0.18% ls [kernel.vmlinux] [k] __audit_syscall_entry
>
> 0.16% 0.16% ls [kernel.vmlinux] [k] arch_get_unmapped_area_topdown
>
> 0.16% 0.16% ls [kernel.vmlinux] [k] fsnotify
>
> 0.16% 0.16% ls [kernel.vmlinux] [k] intel_bts_enable_local
>
> 0.15% 0.15% ls [kernel.vmlinux] [k] selinux_inode_permission
>
> 0.14% 0.14% ls [kernel.vmlinux] [k] wait_for_xmitr
>
> 0.14% 0.14% ls [kernel.vmlinux] [k] __const_udelay
>
> 0.11% 0.11% ls [kernel.vmlinux] [k] find_vma
>
> 0.11% 0.11% ls [unknown] [.] 0x00007fb3546d18ae
>
> 0.10% 0.10% ls [unknown] [.] 0x00007fb3546cb18e
>
> 0.03% 0.03% ls [kernel.vmlinux] [k] native_sched_clock
>
> 0.01% 0.01% ls [kernel.vmlinux] [k] trigger_load_balance
>
> 0.01% 0.01% ls [kernel.vmlinux] [k] do_nmi
>
> 0.00% 0.00% ls [kernel.vmlinux] [k] perf_event_nmi_handler
>
> 0.00% 0.00% ls [kernel.vmlinux] [k] perf_sample_event_took
>
> 0.00% 0.00% ls [kernel.vmlinux] [k] nmi
>
>
>
> #
> # (For a higher level overview, try: perf report --sort comm,dso)
> #
--
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