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Date: Tue, 22 Oct 2019 01:16:43 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>, Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Clark Williams <williams@...hat.com>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
Andi Kleen <ak@...ux.intel.com>,
Brendan Gregg <brendan.d.gregg@...il.com>,
Daniel Bristot de Oliveira <bristot@...hat.com>,
Ian Rogers <irogers@...gle.com>,
Jin Yao <yao.jin@...ux.intel.com>,
John Garry <john.garry@...wei.com>,
Leo Yan <leo.yan@...aro.org>,
Steven Rostedt <rostedt@...dmis.org>,
Thomas Richter <tmricht@...ux.ibm.com>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [GIT PULL] perf/core improvements and fixes
* Arnaldo Carvalho de Melo <acme@...nel.org> wrote:
> Hi Ingo/Thomas,
>
> Please consider pulling,
>
> Best regards,
>
> - Arnaldo
>
> Test results at the end of this message, as usual.
>
> The following changes since commit 39b656ee9f2ce41eb969c86525f9a2a63fefac5b:
>
> Merge tag 'perf-core-for-mingo-5.5-20191011' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2019-10-15 07:19:55 +0200)
>
> are available in the Git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-5.5-20191021
>
> for you to fetch changes up to 27198a893ba074407e7a87e346252b3e6fab454f:
>
> perf trace: Use STUL_STRARRAY_FLAGS with mmap (2019-10-19 15:35:02 -0300)
>
> ----------------------------------------------------------------
> perf/core improvements and fixes:
>
> perf trace:
>
> - Add syscall failure stats to -s/--summary and -S/--with-summary, also works in
> combination with specifying just a set of syscalls, see below first with
> -s/--summary, then with -S/--with-summary just for the syscalls we saw failing
> with -s:
>
> # perf trace -s sleep 1
>
> Summary of events:
>
> sleep (16218), 80 events, 93.0%
>
> syscall calls errors total min avg max stddev
> (msec) (msec) (msec) (msec) (%)
> ----------- ----- ------ -------- -------- -------- -------- ------
> nanosleep 1 0 1000.091 1000.091 1000.091 1000.091 0.00%
> mmap 8 0 0.045 0.005 0.006 0.008 7.09%
> mprotect 4 0 0.028 0.005 0.007 0.009 11.38%
> openat 3 0 0.021 0.005 0.007 0.009 14.07%
> munmap 1 0 0.017 0.017 0.017 0.017 0.00%
> brk 4 0 0.010 0.001 0.002 0.004 23.15%
> read 4 0 0.009 0.002 0.002 0.003 8.13%
> close 5 0 0.008 0.001 0.002 0.002 10.83%
> fstat 3 0 0.006 0.002 0.002 0.002 6.97%
> access 1 1 0.006 0.006 0.006 0.006 0.00%
> lseek 3 0 0.005 0.001 0.002 0.002 7.37%
> arch_prctl 2 1 0.004 0.001 0.002 0.002 17.64%
> execve 1 0 0.000 0.000 0.000 0.000 0.00%
>
> # perf trace -e access,arch_prctl -S sleep 1
> 0.000 ( 0.006 ms): sleep/19503 arch_prctl(option: 0x3001, arg2: 0x7fff165996b0) = -1 EINVAL (Invalid argument)
> 0.024 ( 0.006 ms): sleep/19503 access(filename: 0x2177e510, mode: R) = -1 ENOENT (No such file or directory)
> 0.136 ( 0.002 ms): sleep/19503 arch_prctl(option: SET_FS, arg2: 0x7f9421737580) = 0
>
> Summary of events:
>
> sleep (19503), 6 events, 50.0%
>
> syscall calls errors total min avg max stddev
> (msec) (msec) (msec) (msec) (%)
> ---------- ----- ------ ------ ------ ------ ------ ------
> arch_prctl 2 1 0.008 0.002 0.004 0.006 57.22%
> access 1 1 0.006 0.006 0.006 0.006 0.00%
>
> #
>
> - Introduce --errno-summary, to drill down a bit more in the errno stats:
>
> # perf trace --errno-summary -e access,arch_prctl -S sleep 1
> 0.000 ( 0.006 ms): sleep/5587 arch_prctl(option: 0x3001, arg2: 0x7ffd6ba6aa00) = -1 EINVAL (Invalid argument)
> 0.028 ( 0.007 ms): sleep/5587 access(filename: 0xb83d9510, mode: R) = -1 ENOENT (No such file or directory)
> 0.172 ( 0.003 ms): sleep/5587 arch_prctl(option: SET_FS, arg2: 0x7f45b8392580) = 0
>
> Summary of events:
>
> sleep (5587), 6 events, 50.0%
>
> syscall calls errors total min avg max stddev
> (msec) (msec) (msec) (msec) (%)
> ---------- ----- ------ ------ ------ ------ ------ ------
> arch_prctl 2 1 0.009 0.003 0.005 0.006 38.90%
> EINVAL: 1
> access 1 1 0.007 0.007 0.007 0.007 0.00%
> ENOENT: 1
> #
>
> - Filter own pid to avoid a feedback look in 'perf trace record -a'
>
> - Add the glue for the auto generated x86 IRQ vector array.
>
> - Show error message when not finding a field used in a filter expression
>
> # perf trace --max-events=4 -e syscalls:sys_enter_write --filter="cnt>32767"
> Failed to set filter "(cnt>32767) && (common_pid != 19938 && common_pid != 8922)" on event syscalls:sys_enter_write with 22 (Invalid argument)
> #
> # perf trace --max-events=4 -e syscalls:sys_enter_write --filter="count>32767"
> 0.000 python3.5/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0dc53600, count: 172086)
> 12.641 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0db63660, count: 75994)
> 27.738 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0db4b1e0, count: 41635)
> 136.070 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0dbab510, count: 62232)
> #
>
> - Add a generator for x86's IRQ vectors -> strings
>
> - Introduce stroul() (string -> number) methods for the strarray and
> strarrays classes, also strtoul_flags, allowing to go from both strings
> and or-ed strings to numbers, allowing things like:
>
> # perf trace -e syscalls:sys_enter_mmap --filter="flags==DENYWRITE|PRIVATE|FIXED" sleep 1
> 0.000 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2aa5000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000)
> 0.011 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2bf2000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000)
> 0.015 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2c3f000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000)
> #
>
> Allowing to narrow down from the complete set of mmap calls for that workload:
>
> # perf trace -e syscalls:sys_enter_mmap sleep 1
> 0.000 sleep/22695 syscalls:sys_enter_mmap(len: 134773, prot: READ, flags: PRIVATE, fd: 3)
> 0.041 sleep/22695 syscalls:sys_enter_mmap(len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS)
> 0.053 sleep/22695 syscalls:sys_enter_mmap(len: 1857472, prot: READ, flags: PRIVATE|DENYWRITE, fd: 3)
> 0.069 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd23ffb6000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000)
> 0.077 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240103000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000)
> 0.083 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240150000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000)
> 0.095 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240156000, len: 14272, prot: READ|WRITE, flags: PRIVATE|FIXED|ANONYMOUS)
> 0.339 sleep/22695 syscalls:sys_enter_mmap(len: 217750512, prot: READ, flags: PRIVATE, fd: 3)
> #
>
> Works with all targets, so, for system wide, looking at who calls mmap with flags set to just "PRIVATE":
>
> # perf trace --max-events=5 -e syscalls:sys_enter_mmap --filter="flags==PRIVATE"
> 0.000 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14)
> 0.050 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14)
> 0.062 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14)
> 0.145 goa-identity-s/2240 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 18)
> 0.183 goa-identity-s/2240 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 18)
> #
>
> # perf trace --max-events=2 -e syscalls:sys_enter_lseek --filter="whence==SET && offset != 0"
> 0.000 Cache2 I/O/12047 syscalls:sys_enter_lseek(fd: 277, offset: 43, whence: SET)
> 1142.070 mozStorage #5/12302 syscalls:sys_enter_lseek(fd: 44</home/acme/.mozilla/firefox/ina67tev.default/cookies.sqlite-wal>, offset: 393536, whence: SET)
> #
>
> perf annotate:
>
> - Fix objdump --no-show-raw-insn flag to work with goth gcc and clang.
>
> - Streamline objdump execution, preserving the right error codes for better
> reporting to user.
>
> perf report:
>
> - Add warning when libunwind not compiled in.
>
> perf stat:
>
> Jin Yao:
>
> - Support --all-kernel/--all-user, to match options available in 'perf record',
> asking that all the events specified work just with kernel or user events.
>
> perf list:
>
> Jin Yao:
>
> - Hide deprecated events by default, allow showing them with --deprecated.
>
> libbperf:
>
> Jiri Olsa:
>
> - Allow to build with -ltcmalloc.
>
> - Finish mmap interface, getting more stuff from tools/perf while adding
> abstractions to avoid pulling too much stuff, to get libperf to grow as
> tools needs things like auxtrace, etc.
>
> perf scripting engines:
>
> Steven Rostedt (VMware):
>
> - Iterate on tep event arrays directly, fixing script generation with
> '-g python' when having multiple tracepoints in a perf.data file.
>
> core:
>
> - Allow to build with -ltcmalloc.
>
> perf test:
>
> Leo Yan:
>
> - Report failure for mmap events.
>
> - Avoid infinite loop for task exit case.
>
> - Remove needless headers for bp_account test.
>
> - Add dedicated checking helper is_supported().
>
> - Disable bp_signal testing for arm64.
>
> Vendor events:
>
> arm64:
>
> John Garry:
>
> - Fix Hisi hip08 DDRC PMU eventname.
>
> - Add some missing events for Hisi hip08 DDRC, L3C and HHA PMUs.
>
> Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
>
> ----------------------------------------------------------------
> Andi Kleen (2):
> perf script: Fix --reltime with --time
> perf evlist: Fix fix for freed id arrays
>
> Arnaldo Carvalho de Melo (25):
> perf trace: Add syscall failure stats to -s/--summary and -S/--with-summary
> perf trace: Introduce --errno-summary
> perf string: Export asprintf__tp_filter_pids()
> perf trace: Filter own pid to avoid a feedback look in 'perf trace record -a'
> perf trace: Support tracepoint dynamic char arrays
> tools arch x86: Grab a copy of the file containing the IRQ vector defines
> libbeauty: Add a generator for x86's IRQ vectors -> strings
> libbeauty: Hook up the x86 irq_vectors table generator
> libbeauty: Add a strarray__scnprintf_suffix() method
> perf trace beauty: Add the glue for the autogenerated x86 IRQ vector array
> perf trace: Hook the 'vec' tracepoint argument with the x86 IRQ vectors scnprintf/strtoul
> perf trace: Show error message when not finding a field used in a filter expression
> perf trace: Introduce accessors to trace specific evsel->priv
> perf trace: Hide evsel->access further, simplify code
> perf trace: Introduce 'struct evsel__trace' for evsel->priv needs
> perf trace: Initialize evsel_trace->fmt for syscalls:sys_enter_* tracepoints
> libbeauty: Introduce syscall_arg__strtoul_strarray()
> perf trace: Honour --max-events in processing syscalls:sys_enter_*
> perf trace: Pass a syscall_arg to syscall_arg_fmt->strtoul()
> libbeauty: Introduce syscall_arg__strtoul_strarrays()
> perf trace: Use strtoul for the fcntl 'cmd' argument
> libbeauty: Make the mmap_flags strarray visible outside of its beautifier
> libbeauty: Introduce strarray__strtoul_flags()
> perf trace: Wire up strarray__strtoul_flags()
> perf trace: Use STUL_STRARRAY_FLAGS with mmap
>
> Ian Rogers (5):
> perf annotate: Avoid reallocation in objdump parsing
> perf annotate: Use libsubcmd's run-command.h to fork objdump
> perf annotate: Don't pipe objdump output through 'grep' command
> perf annotate: Don't pipe objdump output through 'expand' command
> perf annotate: Fix objdump --no-show-raw-insn flag
>
> Jin Yao (3):
> perf report: Add warning when libunwind not compiled in
> perf stat: Support --all-kernel/--all-user
> perf list: Hide deprecated events by default
>
> Jiri Olsa (10):
> perf tools: Allow to build with -ltcmalloc
> libperf: Introduce perf_evlist__for_each_mmap()
> libperf: Move mmap allocation to perf_evlist__mmap_ops::get
> libperf: Move mask setup to perf_evlist__mmap_ops()
> libperf: Link static tests with libapi.a
> libperf: Add tests_mmap_thread test
> libperf: Add tests_mmap_cpus test
> libperf: Keep count of failed tests
> libperf: Do not export perf_evsel__init()/perf_evlist__init()
> libperf: Add pr_err() macro
>
> John Garry (4):
> perf vendor events arm64: Fix Hisi hip08 DDRC PMU eventname
> perf vendor events arm64: Add some missing events for Hisi hip08 DDRC PMU
> perf vendor events arm64: Add some missing events for Hisi hip08 L3C PMU
> perf vendor events arm64: Add some missing events for Hisi hip08 HHA PMU
>
> Leo Yan (5):
> perf test: Report failure for mmap events
> perf test: Avoid infinite loop for task exit case
> perf tests: Remove needless headers for bp_account
> perf tests bp_account: Add dedicated checking helper is_supported()
> perf tests: Disable bp_signal testing for arm64
>
> Steven Rostedt (VMware) (2):
> perf scripting engines: Iterate on tep event arrays directly
> perf tools: Remove unused trace_find_next_event()
>
> Thomas Richter (1):
> perf jvmti: Link against tools/lib/ctype.h to have weak strlcpy()
>
> tools/arch/x86/include/asm/irq_vectors.h | 146 +++++++
> tools/perf/Documentation/perf-list.txt | 3 +
> tools/perf/Documentation/perf-stat.txt | 6 +
> tools/perf/Documentation/perf-trace.txt | 4 +
> tools/perf/Makefile.config | 5 +
> tools/perf/Makefile.perf | 10 +
> tools/perf/builtin-list.c | 14 +-
> tools/perf/builtin-report.c | 7 +
> tools/perf/builtin-script.c | 5 +-
> tools/perf/builtin-stat.c | 6 +
> tools/perf/builtin-trace.c | 420 ++++++++++++++++-----
> tools/perf/check-headers.sh | 1 +
> tools/perf/jvmti/Build | 6 +-
> tools/perf/lib/Makefile | 1 +
> tools/perf/lib/evlist.c | 71 +++-
> tools/perf/lib/include/internal/evlist.h | 3 +
> tools/perf/lib/include/internal/evsel.h | 1 +
> tools/perf/lib/include/internal/mmap.h | 5 +-
> tools/perf/lib/include/internal/tests.h | 20 +-
> tools/perf/lib/include/perf/core.h | 1 +
> tools/perf/lib/include/perf/evlist.h | 10 +-
> tools/perf/lib/include/perf/evsel.h | 2 -
> tools/perf/lib/internal.h | 3 +
> tools/perf/lib/libperf.map | 3 +-
> tools/perf/lib/mmap.c | 6 +-
> tools/perf/lib/tests/Makefile | 6 +-
> tools/perf/lib/tests/test-cpumap.c | 2 +-
> tools/perf/lib/tests/test-evlist.c | 219 ++++++++++-
> tools/perf/lib/tests/test-evsel.c | 2 +-
> tools/perf/lib/tests/test-threadmap.c | 2 +-
> .../arch/arm64/hisilicon/hip08/uncore-ddrc.json | 16 +-
> .../arch/arm64/hisilicon/hip08/uncore-hha.json | 23 +-
> .../arch/arm64/hisilicon/hip08/uncore-l3c.json | 56 +++
> tools/perf/pmu-events/jevents.c | 26 +-
> tools/perf/pmu-events/jevents.h | 3 +-
> tools/perf/pmu-events/pmu-events.h | 1 +
> tools/perf/tests/bp_account.c | 20 +-
> tools/perf/tests/bp_signal.c | 15 +-
> tools/perf/tests/builtin-test.c | 2 +-
> tools/perf/tests/task-exit.c | 9 +
> tools/perf/tests/tests.h | 1 +
> tools/perf/trace/beauty/beauty.h | 19 +
> tools/perf/trace/beauty/mmap.c | 4 +-
> tools/perf/trace/beauty/tracepoints/Build | 1 +
> .../trace/beauty/tracepoints/x86_irq_vectors.c | 29 ++
> .../trace/beauty/tracepoints/x86_irq_vectors.sh | 27 ++
> tools/perf/util/annotate.c | 196 ++++++----
> tools/perf/util/evlist.c | 34 +-
> tools/perf/util/parse-events.c | 4 +-
> tools/perf/util/parse-events.h | 2 +-
> tools/perf/util/pmu.c | 17 +-
> tools/perf/util/pmu.h | 4 +-
> .../perf/util/scripting-engines/trace-event-perl.c | 8 +-
> .../util/scripting-engines/trace-event-python.c | 9 +-
> tools/perf/util/stat.c | 10 +
> tools/perf/util/stat.h | 2 +
> tools/perf/util/string2.h | 3 +
> tools/perf/util/time-utils.c | 27 +-
> tools/perf/util/time-utils.h | 5 +
> tools/perf/util/trace-event-parse.c | 31 --
> tools/perf/util/trace-event.h | 2 -
> 61 files changed, 1307 insertions(+), 289 deletions(-)
> create mode 100644 tools/arch/x86/include/asm/irq_vectors.h
> create mode 100644 tools/perf/trace/beauty/tracepoints/x86_irq_vectors.c
> create mode 100755 tools/perf/trace/beauty/tracepoints/x86_irq_vectors.sh
Pulled, thanks a lot Arnaldo!
Ingo
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