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Message-ID: <20120921091814.GD32081@alpha.arachsys.com>
Date: Fri, 21 Sep 2012 10:18:14 +0100
From: Richard Davies <richard@...chsys.com>
To: Mel Gorman <mgorman@...e.de>
Cc: Shaohua Li <shli@...nel.org>, Rik van Riel <riel@...hat.com>,
Avi Kivity <avi@...hat.com>,
QEMU-devel <qemu-devel@...gnu.org>, KVM <kvm@...r.kernel.org>,
Linux-MM <linux-mm@...ck.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/6] Reduce compaction scanning and lock contention
Richard Davies wrote:
> I did manage to get a couple which were slightly worse, but nothing like as
> bad as before. Here are the results:
...
> # grep -F '[k]' report | head -8
> 61.29% qemu-kvm [kernel.kallsyms] [k] clear_page_c
> 4.52% qemu-kvm [kernel.kallsyms] [k] _raw_spin_lock_irqsave
> 2.64% qemu-kvm [kernel.kallsyms] [k] copy_page_c
> 1.61% swapper [kernel.kallsyms] [k] default_idle
> 1.57% qemu-kvm [kernel.kallsyms] [k] _raw_spin_lock
> 1.18% qemu-kvm [kernel.kallsyms] [k] get_page_from_freelist
> 1.18% qemu-kvm [kernel.kallsyms] [k] isolate_freepages_block
> 1.11% qemu-kvm [kernel.kallsyms] [k] svm_vcpu_run
# ========
# captured on: Fri Sep 21 08:40:48 2012
# os release : 3.6.0-rc5-elastic+
# perf version : 3.5.2
# arch : x86_64
# nrcpus online : 16
# nrcpus avail : 16
# cpudesc : AMD Opteron(tm) Processor 6128
# cpuid : AuthenticAMD,16,9,1
# total memory : 131973276 kB
# cmdline : /home/root/bin/perf record -g -a
# event : name = cycles, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, id = { 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112 }
# HEADER_CPU_TOPOLOGY info available, use -I to display
# HEADER_NUMA_TOPOLOGY info available, use -I to display
# ========
#
# Samples: 914K of event 'cycles'
# Event count (approx.): 328377288871
#
# Overhead Command Shared Object Symbol
# ........ ............. .................... ..............................................
#
61.29% qemu-kvm [kernel.kallsyms] [k] clear_page_c
|
--- clear_page_c
|
|--98.26%-- do_huge_pmd_anonymous_page
| handle_mm_fault
| __get_user_pages
| get_user_page_nowait
| hva_to_pfn.isra.17
| __gfn_to_pfn
| gfn_to_pfn_async
| try_async_pf
| tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--67.45%-- 0x10100000006
| |
| --32.55%-- 0x10100000002
|
--1.74%-- __alloc_pages_nodemask
|
|--91.69%-- alloc_pages_vma
| handle_pte_fault
| |
| |--99.76%-- handle_mm_fault
| | |
| | |--99.78%-- __get_user_pages
| | | get_user_page_nowait
| | | hva_to_pfn.isra.17
| | | __gfn_to_pfn
| | | gfn_to_pfn_async
| | | try_async_pf
| | | tdp_page_fault
| | | kvm_mmu_page_fault
| | | pf_interception
| | | handle_exit
| | | kvm_arch_vcpu_ioctl_run
| | | kvm_vcpu_ioctl
| | | do_vfs_ioctl
| | | sys_ioctl
| | | system_call_fastpath
| | | ioctl
| | | |
| | | |--98.56%-- 0x10100000006
| | | |
| | | --1.44%-- 0x10100000002
| | --0.22%-- [...]
| --0.24%-- [...]
|
--8.31%-- alloc_pages_current
|
|--99.43%-- pte_alloc_one
| |
| |--97.72%-- do_huge_pmd_anonymous_page
| | handle_mm_fault
| | __get_user_pages
| | get_user_page_nowait
| | hva_to_pfn.isra.17
| | __gfn_to_pfn
| | gfn_to_pfn_async
| | try_async_pf
| | tdp_page_fault
| | kvm_mmu_page_fault
| | pf_interception
| | handle_exit
| | kvm_arch_vcpu_ioctl_run
| | kvm_vcpu_ioctl
| | do_vfs_ioctl
| | sys_ioctl
| | system_call_fastpath
| | ioctl
| | |
| | |--56.04%-- 0x10100000006
| | |
| | --43.96%-- 0x10100000002
| |
| --2.28%-- __pte_alloc
| do_huge_pmd_anonymous_page
| handle_mm_fault
| __get_user_pages
| get_user_page_nowait
| hva_to_pfn.isra.17
| __gfn_to_pfn
| gfn_to_pfn_async
| try_async_pf
| tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| 0x10100000006
--0.57%-- [...]
4.52% qemu-kvm [kernel.kallsyms] [k] _raw_spin_lock_irqsave
|
--- _raw_spin_lock_irqsave
|
|--90.15%-- compact_checklock_irqsave
| |
| |--99.77%-- isolate_migratepages_range
| | compact_zone
| | compact_zone_order
| | try_to_compact_pages
| | __alloc_pages_direct_compact
| | __alloc_pages_nodemask
| | alloc_pages_vma
| | do_huge_pmd_anonymous_page
| | handle_mm_fault
| | __get_user_pages
| | get_user_page_nowait
| | hva_to_pfn.isra.17
| | __gfn_to_pfn
| | gfn_to_pfn_async
| | try_async_pf
| | tdp_page_fault
| | kvm_mmu_page_fault
| | pf_interception
| | handle_exit
| | kvm_arch_vcpu_ioctl_run
| | kvm_vcpu_ioctl
| | do_vfs_ioctl
| | sys_ioctl
| | system_call_fastpath
| | ioctl
| | |
| | |--94.58%-- 0x10100000006
| | |
| | --5.42%-- 0x10100000002
| --0.23%-- [...]
|
|--3.60%-- isolate_migratepages_range
| compact_zone
| compact_zone_order
| try_to_compact_pages
| __alloc_pages_direct_compact
| __alloc_pages_nodemask
| alloc_pages_vma
| do_huge_pmd_anonymous_page
| handle_mm_fault
| __get_user_pages
| get_user_page_nowait
| hva_to_pfn.isra.17
| __gfn_to_pfn
| gfn_to_pfn_async
| try_async_pf
| tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--91.30%-- 0x10100000006
| |
| --8.70%-- 0x10100000002
|
|--2.26%-- pagevec_lru_move_fn
| __pagevec_lru_add
| |
| |--96.55%-- __lru_cache_add
| | lru_cache_add_lru
| | |
| | |--96.23%-- putback_lru_page
| | | |
| | | |--98.46%-- migrate_pages
| | | | compact_zone
| | | | compact_zone_order
| | | | try_to_compact_pages
| | | | __alloc_pages_direct_compact
| | | | __alloc_pages_nodemask
| | | | alloc_pages_vma
| | | | do_huge_pmd_anonymous_page
| | | | handle_mm_fault
| | | | __get_user_pages
| | | | get_user_page_nowait
| | | | hva_to_pfn.isra.17
| | | | __gfn_to_pfn
| | | | gfn_to_pfn_async
| | | | try_async_pf
| | | | tdp_page_fault
| | | | kvm_mmu_page_fault
| | | | pf_interception
| | | | handle_exit
| | | | kvm_arch_vcpu_ioctl_run
| | | | kvm_vcpu_ioctl
| | | | do_vfs_ioctl
| | | | sys_ioctl
| | | | system_call_fastpath
| | | | ioctl
| | | | |
| | | | |--91.70%-- 0x10100000006
| | | | |
| | | | --8.30%-- 0x10100000002
| | | |
| | | --1.54%-- putback_lru_pages
| | | compact_zone
| | | compact_zone_order
| | | try_to_compact_pages
| | | __alloc_pages_direct_compact
| | | __alloc_pages_nodemask
| | | alloc_pages_vma
| | | do_huge_pmd_anonymous_page
| | | handle_mm_fault
| | | __get_user_pages
| | | get_user_page_nowait
| | | hva_to_pfn.isra.17
| | | __gfn_to_pfn
| | | gfn_to_pfn_async
| | | try_async_pf
| | | tdp_page_fault
| | | kvm_mmu_page_fault
| | | pf_interception
| | | handle_exit
| | | kvm_arch_vcpu_ioctl_run
| | | kvm_vcpu_ioctl
| | | do_vfs_ioctl
| | | sys_ioctl
| | | system_call_fastpath
| | | ioctl
| | | 0x10100000006
| | |
| | --3.77%-- page_add_new_anon_rmap
| | handle_pte_fault
| | handle_mm_fault
| | __get_user_pages
| | get_user_page_nowait
| | hva_to_pfn.isra.17
| | __gfn_to_pfn
| | gfn_to_pfn_async
| | try_async_pf
| | tdp_page_fault
| | kvm_mmu_page_fault
| | pf_interception
| | handle_exit
| | kvm_arch_vcpu_ioctl_run
| | kvm_vcpu_ioctl
| | do_vfs_ioctl
| | sys_ioctl
| | system_call_fastpath
| | ioctl
| | |
| | |--97.54%-- 0x10100000006
| | |
| | --2.46%-- 0x10100000002
| |
| --3.45%-- lru_add_drain_cpu
| lru_add_drain
| migrate_prep_local
| compact_zone
| compact_zone_order
| try_to_compact_pages
| __alloc_pages_direct_compact
| __alloc_pages_nodemask
| alloc_pages_vma
| do_huge_pmd_anonymous_page
| handle_mm_fault
| __get_user_pages
| get_user_page_nowait
| hva_to_pfn.isra.17
| __gfn_to_pfn
| gfn_to_pfn_async
| try_async_pf
| tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| 0x10100000006
|
|--1.58%-- release_pages
| pagevec_lru_move_fn
| __pagevec_lru_add
| |
| |--98.25%-- __lru_cache_add
| | lru_cache_add_lru
| | putback_lru_page
| | |
| | |--99.42%-- migrate_pages
| | | compact_zone
| | | compact_zone_order
| | | try_to_compact_pages
| | | __alloc_pages_direct_compact
| | | __alloc_pages_nodemask
| | | alloc_pages_vma
| | | do_huge_pmd_anonymous_page
| | | handle_mm_fault
| | | __get_user_pages
| | | get_user_page_nowait
| | | hva_to_pfn.isra.17
| | | __gfn_to_pfn
| | | gfn_to_pfn_async
| | | try_async_pf
| | | tdp_page_fault
| | | kvm_mmu_page_fault
| | | pf_interception
| | | handle_exit
| | | kvm_arch_vcpu_ioctl_run
| | | kvm_vcpu_ioctl
| | | do_vfs_ioctl
| | | sys_ioctl
| | | system_call_fastpath
| | | ioctl
| | | |
| | | |--95.23%-- 0x10100000006
| | | |
| | | --4.77%-- 0x10100000002
| | |
| | --0.58%-- putback_lru_pages
| | compact_zone
| | compact_zone_order
| | try_to_compact_pages
| | __alloc_pages_direct_compact
| | __alloc_pages_nodemask
| | alloc_pages_vma
| | do_huge_pmd_anonymous_page
| | handle_mm_fault
| | __get_user_pages
| | get_user_page_nowait
| | hva_to_pfn.isra.17
| | __gfn_to_pfn
| | gfn_to_pfn_async
| | try_async_pf
| | tdp_page_fault
| | kvm_mmu_page_fault
| | pf_interception
| | handle_exit
| | kvm_arch_vcpu_ioctl_run
| | kvm_vcpu_ioctl
| | do_vfs_ioctl
| | sys_ioctl
| | system_call_fastpath
| | ioctl
| | 0x10100000006
| |
| --1.75%-- lru_add_drain_cpu
| lru_add_drain
| migrate_prep_local
| compact_zone
| compact_zone_order
| try_to_compact_pages
| __alloc_pages_direct_compact
| __alloc_pages_nodemask
| alloc_pages_vma
| do_huge_pmd_anonymous_page
| handle_mm_fault
| __get_user_pages
| get_user_page_nowait
| hva_to_pfn.isra.17
| __gfn_to_pfn
| gfn_to_pfn_async
| try_async_pf
| tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--80.09%-- 0x10100000006
| |
| --19.91%-- 0x10100000002
|
|--0.99%-- __page_cache_release.part.11
| __put_single_page
| put_page
| putback_lru_page
| migrate_pages
| compact_zone
| compact_zone_order
| try_to_compact_pages
| __alloc_pages_direct_compact
| __alloc_pages_nodemask
| alloc_pages_vma
| do_huge_pmd_anonymous_page
| handle_mm_fault
| __get_user_pages
| get_user_page_nowait
| hva_to_pfn.isra.17
| __gfn_to_pfn
| gfn_to_pfn_async
| try_async_pf
| tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--92.20%-- 0x10100000006
| |
| --7.80%-- 0x10100000002
--1.42%-- [...]
2.64% qemu-kvm [kernel.kallsyms] [k] copy_page_c
|
--- copy_page_c
|
|--75.79%-- buffer_migrate_page
| move_to_new_page
| migrate_pages
| compact_zone
| compact_zone_order
| try_to_compact_pages
| __alloc_pages_direct_compact
| __alloc_pages_nodemask
| alloc_pages_vma
| do_huge_pmd_anonymous_page
| handle_mm_fault
| __get_user_pages
| get_user_page_nowait
| hva_to_pfn.isra.17
| __gfn_to_pfn
| gfn_to_pfn_async
| try_async_pf
| tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--98.86%-- 0x10100000006
| |
| --1.14%-- 0x10100000002
|
|--24.08%-- migrate_page
| |
| |--82.12%-- buffer_migrate_page
| | move_to_new_page
| | migrate_pages
| | compact_zone
| | compact_zone_order
| | try_to_compact_pages
| | __alloc_pages_direct_compact
| | __alloc_pages_nodemask
| | alloc_pages_vma
| | do_huge_pmd_anonymous_page
| | handle_mm_fault
| | __get_user_pages
| | get_user_page_nowait
| | hva_to_pfn.isra.17
| | __gfn_to_pfn
| | gfn_to_pfn_async
| | try_async_pf
| | tdp_page_fault
| | kvm_mmu_page_fault
| | pf_interception
| | handle_exit
| | kvm_arch_vcpu_ioctl_run
| | kvm_vcpu_ioctl
| | do_vfs_ioctl
| | sys_ioctl
| | system_call_fastpath
| | ioctl
| | |
| | |--98.08%-- 0x10100000006
| | |
| | --1.92%-- 0x10100000002
| |
| --17.88%-- move_to_new_page
| migrate_pages
| compact_zone
| compact_zone_order
| try_to_compact_pages
| __alloc_pages_direct_compact
| __alloc_pages_nodemask
| alloc_pages_vma
| do_huge_pmd_anonymous_page
| handle_mm_fault
| __get_user_pages
| get_user_page_nowait
| hva_to_pfn.isra.17
| __gfn_to_pfn
| gfn_to_pfn_async
| try_async_pf
| tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--99.21%-- 0x10100000006
| |
| --0.79%-- 0x10100000002
--0.13%-- [...]
1.61% swapper [kernel.kallsyms] [k] default_idle
|
--- default_idle
|
|--99.76%-- cpu_idle
| |
| |--77.77%-- start_secondary
| |
| --22.23%-- rest_init
| start_kernel
| x86_64_start_reservations
| x86_64_start_kernel
--0.24%-- [...]
1.57% qemu-kvm [kernel.kallsyms] [k] _raw_spin_lock
|
--- _raw_spin_lock
|
|--37.29%-- tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--89.54%-- 0x10100000006
| |
| --10.46%-- 0x10100000002
|
|--9.09%-- kvm_mmu_load
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--59.75%-- 0x10100000006
| |
| --40.25%-- 0x10100000002
|
|--8.00%-- follow_page
| __get_user_pages
| get_user_page_nowait
| hva_to_pfn.isra.17
| __gfn_to_pfn
| gfn_to_pfn_async
| try_async_pf
| tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--98.39%-- 0x10100000006
| |
| --1.61%-- 0x10100000002
|
|--7.17%-- kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--94.45%-- 0x10100000006
| |
| --5.55%-- 0x10100000002
|
|--5.65%-- mmu_free_roots
| |
| |--76.51%-- nonpaging_free
| | kvm_mmu_reset_context
| | kvm_set_cr4
| | emulator_set_cr
| | em_cr_write
| | x86_emulate_insn
| | x86_emulate_instruction
| | emulate_on_interception
| | cr_interception
| | handle_exit
| | kvm_arch_vcpu_ioctl_run
| | kvm_vcpu_ioctl
| | do_vfs_ioctl
| | sys_ioctl
| | system_call_fastpath
| | ioctl
| | |
| | |--64.15%-- 0x10100000006
| | |
| | --35.85%-- 0x10100000002
| |
| --23.49%-- kvm_mmu_unload
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--73.65%-- 0x10100000006
| |
| --26.35%-- 0x10100000002
|
|--4.61%-- put_super
| drop_super
| prune_super
| shrink_slab
| try_to_free_pages
| __alloc_pages_nodemask
| alloc_pages_vma
| do_huge_pmd_anonymous_page
| handle_mm_fault
| __get_user_pages
| get_user_page_nowait
| hva_to_pfn.isra.17
| __gfn_to_pfn
| gfn_to_pfn_async
| try_async_pf
| tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--93.31%-- 0x10100000006
| |
| --6.69%-- 0x10100000002
|
|--4.60%-- grab_super_passive
| prune_super
| shrink_slab
| try_to_free_pages
| __alloc_pages_nodemask
| alloc_pages_vma
| do_huge_pmd_anonymous_page
| handle_mm_fault
| __get_user_pages
| get_user_page_nowait
| hva_to_pfn.isra.17
| __gfn_to_pfn
| gfn_to_pfn_async
| try_async_pf
| tdp_page_fault
| kvm_mmu_page_fault
| pf_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--95.07%-- 0x10100000006
| |
| --4.93%-- 0x10100000002
|
|--3.94%-- yield_to
| kvm_vcpu_yield_to
| kvm_vcpu_on_spin
| pause_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--86.93%-- 0x10100000006
| |
| --13.07%-- 0x10100000002
|
|--3.08%-- free_pcppages_bulk
| |
| |--89.90%-- drain_pages
| | |
| | |--95.03%-- drain_local_pages
| | | generic_smp_call_function_interrupt
| | | smp_call_function_interrupt
| | | call_function_interrupt
| | | |
| | | |--29.99%-- buffer_migrate_page
| | | | move_to_new_page
| | | | migrate_pages
| | | | compact_zone
| | | | compact_zone_order
| | | | try_to_compact_pages
| | | | __alloc_pages_direct_compact
| | | | __alloc_pages_nodemask
| | | | alloc_pages_vma
| | | | do_huge_pmd_anonymous_page
| | | | handle_mm_fault
| | | | __get_user_pages
| | | | get_user_page_nowait
| | | | hva_to_pfn.isra.17
| | | | __gfn_to_pfn
| | | | gfn_to_pfn_async
| | | | try_async_pf
| | | | tdp_page_fault
| | | | kvm_mmu_page_fault
| | | | pf_interception
| | | | handle_exit
| | | | kvm_arch_vcpu_ioctl_run
| | | | kvm_vcpu_ioctl
| | | | do_vfs_ioctl
| | | | sys_ioctl
| | | | system_call_fastpath
| | | | ioctl
| | | | 0x10100000006
| | | |
| | | |--13.18%-- kvm_vcpu_ioctl
| | | | do_vfs_ioctl
| | | | sys_ioctl
| | | | system_call_fastpath
| | | | ioctl
| | | | |
| | | | |--98.30%-- 0x10100000006
| | | | |
| | | | --1.70%-- 0x10100000002
| | | |
| | | |--8.86%-- compact_checklock_irqsave
| | | | |
| | | | |--65.32%-- isolate_migratepages_range
| | | | | compact_zone
| | | | | compact_zone_order
| | | | | try_to_compact_pages
| | | | | __alloc_pages_direct_compact
| | | | | __alloc_pages_nodemask
| | | | | alloc_pages_vma
| | | | | do_huge_pmd_anonymous_page
| | | | | handle_mm_fault
| | | | | __get_user_pages
| | | | | get_user_page_nowait
| | | | | hva_to_pfn.isra.17
| | | | | __gfn_to_pfn
| | | | | gfn_to_pfn_async
| | | | | try_async_pf
| | | | | tdp_page_fault
| | | | | kvm_mmu_page_fault
| | | | | pf_interception
| | | | | handle_exit
| | | | | kvm_arch_vcpu_ioctl_run
| | | | | kvm_vcpu_ioctl
| | | | | do_vfs_ioctl
| | | | | sys_ioctl
| | | | | system_call_fastpath
| | | | | ioctl
| | | | | |
| | | | | |--94.13%-- 0x10100000006
| | | | | |
| | | | | --5.87%-- 0x10100000002
| | | | |
| | | | --34.68%-- isolate_freepages_block
| | | | compaction_alloc
| | | | migrate_pages
| | | | compact_zone
| | | | compact_zone_order
| | | | try_to_compact_pages
| | | | __alloc_pages_direct_compact
| | | | __alloc_pages_nodemask
| | | | alloc_pages_vma
| | | | do_huge_pmd_anonymous_page
| | | | handle_mm_fault
| | | | __get_user_pages
| | | | get_user_page_nowait
| | | | hva_to_pfn.isra.17
| | | | __gfn_to_pfn
| | | | gfn_to_pfn_async
| | | | try_async_pf
| | | | tdp_page_fault
| | | | kvm_mmu_page_fault
| | | | pf_interception
| | | | handle_exit
| | | | kvm_arch_vcpu_ioctl_run
| | | | kvm_vcpu_ioctl
| | | | do_vfs_ioctl
| | | | sys_ioctl
| | | | system_call_fastpath
| | | | ioctl
| | | | 0x10100000006
| | | |
| | | |--8.21%-- migrate_page
| | | | |
| | | | |--91.65%-- buffer_migrate_page
| | | | | move_to_new_page
| | | | | migrate_pages
| | | | | compact_zone
| | | | | compact_zone_order
| | | | | try_to_compact_pages
| | | | | __alloc_pages_direct_compact
| | | | | __alloc_pages_nodemask
| | | | | alloc_pages_vma
| | | | | do_huge_pmd_anonymous_page
| | | | | handle_mm_fault
| | | | | __get_user_pages
| | | | | get_user_page_nowait
| | | | | hva_to_pfn.isra.17
| | | | | __gfn_to_pfn
| | | | | gfn_to_pfn_async
| | | | | try_async_pf
| | | | | tdp_page_fault
| | | | | kvm_mmu_page_fault
| | | | | pf_interception
| | | | | handle_exit
| | | | | kvm_arch_vcpu_ioctl_run
| | | | | kvm_vcpu_ioctl
| | | | | do_vfs_ioctl
| | | | | sys_ioctl
| | | | | system_call_fastpath
| | | | | ioctl
| | | | | 0x10100000006
| | | | |
| | | | --8.35%-- move_to_new_page
| | | | migrate_pages
| | | | compact_zone
| | | | compact_zone_order
| | | | try_to_compact_pages
| | | | __alloc_pages_direct_compact
| | | | __alloc_pages_nodemask
| | | | alloc_pages_vma
| | | | do_huge_pmd_anonymous_page
| | | | handle_mm_fault
| | | | __get_user_pages
| | | | get_user_page_nowait
| | | | hva_to_pfn.isra.17
| | | | __gfn_to_pfn
| | | | gfn_to_pfn_async
| | | | try_async_pf
| | | | tdp_page_fault
| | | | kvm_mmu_page_fault
| | | | pf_interception
| | | | handle_exit
| | | | kvm_arch_vcpu_ioctl_run
| | | | kvm_vcpu_ioctl
| | | | do_vfs_ioctl
| | | | sys_ioctl
| | | | system_call_fastpath
| | | | ioctl
| | | | 0x10100000006
| | | |
| | | |--6.16%-- do_huge_pmd_anonymous_page
| | | | handle_mm_fault
| | | | __get_user_pages
| | | | get_user_page_nowait
| | | | hva_to_pfn.isra.17
| | | | __gfn_to_pfn
| | | | gfn_to_pfn_async
| | | | try_async_pf
| | | | tdp_page_fault
| | | | kvm_mmu_page_fault
| | | | pf_interception
| | | | handle_exit
| | | | kvm_arch_vcpu_ioctl_run
| | | | kvm_vcpu_ioctl
| | | | do_vfs_ioctl
| | | | sys_ioctl
| | | | system_call_fastpath
| | | | ioctl
| | | | 0x10100000006
| | | |
| | | |--5.39%-- isolate_migratepages_range
| | | | compact_zone
| | | | compact_zone_order
| | | | try_to_compact_pages
| | | | __alloc_pages_direct_compact
| | | | __alloc_pages_nodemask
| | | | alloc_pages_vma
| | | | do_huge_pmd_anonymous_page
| | | | handle_mm_fault
| | | | __get_user_pages
| | | | get_user_page_nowait
| | | | hva_to_pfn.isra.17
| | | | __gfn_to_pfn
| | | | gfn_to_pfn_async
| | | | try_async_pf
| | | | tdp_page_fault
| | | | kvm_mmu_page_fault
| | | | pf_interception
| | | | handle_exit
| | | | kvm_arch_vcpu_ioctl_run
| | | | kvm_vcpu_ioctl
| | | | do_vfs_ioctl
| | | | sys_ioctl
| | | | system_call_fastpath
| | | | ioctl
| | | | 0x10100000006
| | | |
| | | |--3.59%-- compaction_alloc
| | | | migrate_pages
| | | | compact_zone
| | | | compact_zone_order
| | | | try_to_compact_pages
| | | | __alloc_pages_direct_compact
| | | | __alloc_pages_nodemask
| | | | alloc_pages_vma
| | | | do_huge_pmd_anonymous_page
| | | | handle_mm_fault
| | | | __get_user_pages
| | | | get_user_page_nowait
| | | | hva_to_pfn.isra.17
| | | | __gfn_to_pfn
| | | | gfn_to_pfn_async
| | | | try_async_pf
| | | | tdp_page_fault
| | | | kvm_mmu_page_fault
| | | | pf_interception
| | | | handle_exit
| | | | kvm_arch_vcpu_ioctl_run
| | | | kvm_vcpu_ioctl
| | | | do_vfs_ioctl
| | | | sys_ioctl
| | | | system_call_fastpath
| | | | ioctl
| | | | 0x10100000006
| | | |
| | | |--3.19%-- migrate_page_move_mapping.part.16
| | | | |
| | | | |--89.86%-- buffer_migrate_page
| | | | | move_to_new_page
| | | | | migrate_pages
| | | | | compact_zone
| | | | | compact_zone_order
| | | | | try_to_compact_pages
| | | | | __alloc_pages_direct_compact
| | | | | __alloc_pages_nodemask
| | | | | alloc_pages_vma
| | | | | do_huge_pmd_anonymous_page
| | | | | handle_mm_fault
| | | | | __get_user_pages
| | | | | get_user_page_nowait
| | | | | hva_to_pfn.isra.17
| | | | | __gfn_to_pfn
| | | | | gfn_to_pfn_async
| | | | | try_async_pf
| | | | | tdp_page_fault
| | | | | kvm_mmu_page_fault
| | | | | pf_interception
--
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