Mel Gorman wrote:
> Ok, this just means the focus has moved to the zone->lock instead of the
> zone->lru_lock. This was expected to some extent. This is an additional
> patch that defers acquisition of the zone->lock for as long as possible.
And I believe you have now beaten the lock contention - congratulations!
> Incidentally, I checked the efficiency of compaction - i.e. how many
> pages scanned versus how many pages isolated and the efficiency
> completely sucks. It must be addressed but addressing the lock
> contention should happen first.
Yes, compaction is now definitely top.
Interestingly, some boots still seem "slow" and some "fast", even without
any lock contention issues. Here are traces from a few different runs, and I
attach the detailed report for the first of these which was one of the slow
ones.
# grep -F '[k]' report.1 | head -8
55.86% qemu-kvm [kernel.kallsyms] [k] isolate_freepages_block
14.98% qemu-kvm [kernel.kallsyms] [k] clear_page_c
2.18% qemu-kvm [kernel.kallsyms] [k] yield_to
1.67% qemu-kvm [kernel.kallsyms] [k] get_pageblock_flags_group
1.66% qemu-kvm [kernel.kallsyms] [k] compact_zone
1.56% ksmd [kernel.kallsyms] [k] memcmp
1.48% swapper [kernel.kallsyms] [k] default_idle
1.33% qemu-kvm [kernel.kallsyms] [k] svm_vcpu_run
#
# grep -F '[k]' report.2 | head -8
38.28% qemu-kvm [kernel.kallsyms] [k] isolate_freepages_block
7.58% qemu-kvm [kernel.kallsyms] [k] get_pageblock_flags_group
7.03% qemu-kvm [kernel.kallsyms] [k] clear_page_c
4.72% qemu-kvm [kernel.kallsyms] [k] isolate_migratepages_range
4.31% qemu-kvm [kernel.kallsyms] [k] copy_page_c
4.15% qemu-kvm [kernel.kallsyms] [k] compact_zone
2.68% qemu-kvm [kernel.kallsyms] [k] __zone_watermark_ok
2.65% qemu-kvm [kernel.kallsyms] [k] yield_to
#
# grep -F '[k]' report.3 | head -8
75.18% qemu-kvm [kernel.kallsyms] [k] clear_page_c
1.82% swapper [kernel.kallsyms] [k] default_idle
1.29% qemu-kvm [kernel.kallsyms] [k] isolate_freepages_block
1.27% qemu-kvm [kernel.kallsyms] [k] get_page_from_freelist
1.20% ksmd [kernel.kallsyms] [k] memcmp
0.83% qemu-kvm [kernel.kallsyms] [k] free_pages_prepare
0.78% qemu-kvm [kernel.kallsyms] [k] svm_vcpu_run
0.59% qemu-kvm [kernel.kallsyms] [k] prep_compound_page
#
# grep -F '[k]' report.4 | head -8
41.02% qemu-kvm [kernel.kallsyms] [k] isolate_freepages_block
32.20% qemu-kvm [kernel.kallsyms] [k] clear_page_c
1.76% qemu-kvm [kernel.kallsyms] [k] yield_to
1.37% swapper [kernel.kallsyms] [k] default_idle
1.35% ksmd [kernel.kallsyms] [k] memcmp
1.27% qemu-kvm [kernel.kallsyms] [k] svm_vcpu_run
1.23% qemu-kvm [kernel.kallsyms] [k] get_pageblock_flags_group
0.88% qemu-kvm [kernel.kallsyms] [k] kvm_vcpu_on_spin
#
# grep -F '[k]' report.5 | head -8
61.18% qemu-kvm [kernel.kallsyms] [k] isolate_freepages_block
14.55% qemu-kvm [kernel.kallsyms] [k] clear_page_c
1.75% qemu-kvm [kernel.kallsyms] [k] yield_to
1.31% ksmd [kernel.kallsyms] [k] memcmp
1.21% qemu-kvm [kernel.kallsyms] [k] svm_vcpu_run
1.20% swapper [kernel.kallsyms] [k] default_idle
1.14% qemu-kvm [kernel.kallsyms] [k] get_pageblock_flags_group
0.94% qemu-kvm [kernel.kallsyms] [k] kvm_vcpu_on_spin
Here is the detailed report for the first of these:
# ========
# captured on: Tue Sep 18 17:03:40 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 : 131973280 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 = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 }
# HEADER_CPU_TOPOLOGY info available, use -I to display
# HEADER_NUMA_TOPOLOGY info available, use -I to display
# ========
#
# Samples: 3M of event 'cycles'
# Event count (approx.): 1184064513533
#
# Overhead Command Shared Object Symbol
# ........ ............... .................... ..............................................
#
55.86% qemu-kvm [kernel.kallsyms] [k] isolate_freepages_block
|
--- isolate_freepages_block
|
|--99.99%-- 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
| |
| |--88.73%-- 0x10100000006
| |
| --11.27%-- 0x10100000002
--0.01%-- [...]
14.98% qemu-kvm [kernel.kallsyms] [k] clear_page_c
|
--- clear_page_c
|
|--99.84%-- 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
| |
| |--55.15%-- 0x10100000006
| |
| --44.85%-- 0x10100000002
--0.16%-- [...]
2.18% qemu-kvm [kernel.kallsyms] [k] yield_to
|
--- yield_to
|
|--99.62%-- 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
| |
| |--83.34%-- 0x10100000006
| |
| --16.66%-- 0x10100000002
--0.38%-- [...]
1.67% qemu-kvm [kernel.kallsyms] [k] get_pageblock_flags_group
|
--- get_pageblock_flags_group
|
|--57.67%-- 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
| |
| |--86.10%-- 0x10100000006
| |
| --13.90%-- 0x10100000002
|
|--38.10%-- suitable_migration_target
| 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
| |
| |--88.50%-- 0x10100000006
| |
| --11.50%-- 0x10100000002
|
|--2.23%-- 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
| |
| |--85.85%-- 0x10100000006
| |
| --14.15%-- 0x10100000002
|
|--0.88%-- 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
| |
| |--87.75%-- 0x10100000006
| |
| --12.25%-- 0x10100000002
|
|--0.75%-- free_hot_cold_page
| |
| |--74.93%-- free_hot_cold_page_list
| | |
| | |--53.13%-- shrink_page_list
| | | shrink_inactive_list
| | | shrink_lruvec
| | | 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
| | | |
| | | |--82.85%-- 0x10100000006
| | | |
| | | --17.15%-- 0x10100000002
| | |
| | --46.87%-- release_pages
| | pagevec_lru_move_fn
| | __pagevec_lru_add
| | |
| | |--98.13%-- __lru_cache_add
| | | lru_cache_add_lru
| | | putback_lru_page
| | | |
| | | |--99.02%-- 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
| | | | |
| | | | |--88.56%-- 0x10100000006
| | | | |
| | | | --11.44%-- 0x10100000002
| | | |
| | | --0.98%-- 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
| | | 0x10100000002
| | |
| | --1.87%-- lru_add_drain_cpu
| | lru_add_drain
| | |
| | |--51.26%-- shrink_inactive_list
| | | shrink_lruvec
| | | 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
| | | 0x10100000002
| | |
| | --48.74%-- 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
| |
| |--23.04%-- __free_pages
| | |
| | |--59.57%-- release_freepages
| | | 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
| | | |
| | | |--89.08%-- 0x10100000006
| | | |
| | | --10.92%-- 0x10100000002
| | |
| | |--30.57%-- 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
| | | |
| | | |--60.91%-- 0x10100000006
| | | |
| | | --39.09%-- 0x10100000002
| | |
| | --9.86%-- __free_slab
| | discard_slab
| | |
| | |--55.43%-- unfreeze_partials
| | | put_cpu_partial
| | | __slab_free
| | | kmem_cache_free
| | | free_buffer_head
| | | try_to_free_buffers
| | | jbd2_journal_try_to_free_buffers
| | | ext4_releasepage
| | | try_to_release_page
| | | shrink_page_list
| | | shrink_inactive_list
| | | shrink_lruvec
| | | 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
| | | 0x10100000006
| | |
| | --44.57%-- __slab_free
| | kmem_cache_free
| | free_buffer_head
| | try_to_free_buffers
| | jbd2_journal_try_to_free_buffers
| | ext4_releasepage
| | try_to_release_page
| | shrink_page_list
| | shrink_inactive_list
| | shrink_lruvec
| | 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
| | 0x10100000006
| |
| --2.02%-- __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
| |
| |--83.36%-- 0x10100000006
| |
| --16.64%-- 0x10100000002
--0.37%-- [...]
1.66% qemu-kvm [kernel.kallsyms] [k] compact_zone
|
--- compact_zone
|
|--99.99%-- 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
| |
| |--85.25%-- 0x10100000006
| |
| --14.75%-- 0x10100000002
--0.01%-- [...]
1.56% ksmd [kernel.kallsyms] [k] memcmp
|
--- memcmp
|
|--99.67%-- memcmp_pages
| |
| |--77.39%-- ksm_scan_thread
| | kthread
| | kernel_thread_helper
| |
| --22.61%-- try_to_merge_with_ksm_page
| ksm_scan_thread
| kthread
| kernel_thread_helper
--0.33%-- [...]
1.48% swapper [kernel.kallsyms] [k] default_idle
|
--- default_idle
|
|--99.55%-- cpu_idle
| |
| |--92.95%-- start_secondary
| |
| --7.05%-- rest_init
| start_kernel
| x86_64_start_reservations
| x86_64_start_kernel
--0.45%-- [...]
1.33% qemu-kvm [kernel.kallsyms] [k] svm_vcpu_run
|
--- svm_vcpu_run
|
|--99.34%-- kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--77.65%-- 0x10100000006
| |
| --22.35%-- 0x10100000002
|
--0.66%-- kvm_vcpu_ioctl
do_vfs_ioctl
sys_ioctl
system_call_fastpath
ioctl
|
|--73.97%-- 0x10100000006
|
--26.03%-- 0x10100000002
1.08% qemu-kvm [kernel.kallsyms] [k] kvm_vcpu_on_spin
|
--- kvm_vcpu_on_spin
|
|--99.27%-- pause_interception
| handle_exit
| kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--83.21%-- 0x10100000006
| |
| --16.79%-- 0x10100000002
|
--0.73%-- handle_exit
kvm_arch_vcpu_ioctl_run
kvm_vcpu_ioctl
do_vfs_ioctl
sys_ioctl
system_call_fastpath
ioctl
|
|--80.89%-- 0x10100000006
|
--19.11%-- 0x10100000002
0.79% qemu-kvm qemu-kvm [.] 0x00000000000ae282
|
|--1.27%-- 0x4eec6e
| |
| |--38.48%-- 0x1491280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| |--32.35%-- 0x3195280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| --29.16%-- 0x200c280
| 0x0
| 0xa0
| 0x696368752d62
|
|--1.24%-- 0x503457
| 0x0
|
|--1.02%-- 0x4eec20
| |
| |--46.48%-- 0x200c280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| |--28.52%-- 0x3195280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| --24.99%-- 0x1491280
| 0x0
| 0xa0
| 0x696368752d62
|
|--1.00%-- 0x4eec2a
| |
| |--77.52%-- 0x200c280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| |--12.67%-- 0x3195280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| --9.80%-- 0x1491280
| 0x0
| 0xa0
| 0x696368752d62
|
|--0.99%-- 0x4ef092
|
|--0.94%-- 0x568f04
| |
| |--89.85%-- 0x0
| |
| |--7.89%-- 0x10100000002
| |
| --2.26%-- 0x10100000006
|
|--0.93%-- 0x5afab4
| |
| |--40.39%-- 0x309a410
| | 0x0
| |
| |--31.80%-- 0x1f11410
| | 0x0
| |
| |--20.88%-- 0x1396410
| | 0x0
| |
| |--4.58%-- 0x0
| | |
| | |--52.36%-- 0x148ea00
| | | 0x5699c0
| | | 0x24448948004b4154
| | |
| | |--31.49%-- 0x2009a00
| | | 0x5699c0
| | | 0x24448948004b4154
| | |
| | --16.15%-- 0x3192a00
| | 0x5699c0
| | 0x24448948004b4154
| |
| |--1.31%-- 0x1000
| |
| --1.03%-- 0x6
|
|--0.92%-- 0x4eeba0
| |
| |--35.54%-- 0x3195280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| |--32.33%-- 0x200c280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| --32.12%-- 0x1491280
| 0x0
| 0xa0
| 0x696368752d62
|
|--0.91%-- 0x652b11
|
|--0.83%-- 0x65a102
|
|--0.82%-- 0x40a6a9
|
|--0.81%-- 0x530421
| |
| |--94.43%-- 0x0
| |
| --5.57%-- 0x46b47b
| |
| |--51.32%-- 0xdffec96000a08169
| |
| --48.68%-- 0xdffec90000a08169
|
|--0.80%-- 0x569fc4
| |
| |--41.34%-- 0x1396410
| | 0x0
| |
| |--29.46%-- 0x1f11410
| | 0x0
| |
| --29.21%-- 0x309a410
| 0x0
|
|--0.73%-- 0x541422
| 0x0
|
|--0.70%-- 0x56b990
| |
| |--72.77%-- 0x100000008
| |
| |--26.00%-- 0xfed00000
| | |
| | --100.00%-- 0x0
| |
| |--0.73%-- 0x100000004
| --0.50%-- [...]
|
|--0.69%-- 0x525261
| 0x0
| 0x822ee8fff96873e9
|
|--0.69%-- 0x6578d7
| |
| --100.00%-- 0x0
|
|--0.67%-- 0x52fb44
| |
| |--75.44%-- 0x0
| |
| |--17.16%-- 0x10100000002
| |
| --7.41%-- 0x10100000006
|
|--0.66%-- 0x568e29
| |
| |--50.87%-- 0x200c280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| |--33.04%-- 0x3195280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| |--13.60%-- 0x1491280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| |--1.40%-- 0x1000
| |
| |--0.65%-- 0x3000
| --0.43%-- [...]
|
|--0.65%-- 0x5b4cb4
| 0x0
| 0x822ee8fff96873e9
|
|--0.62%-- 0x55b9ba
| |
| |--50.14%-- 0x0
| |
| --49.86%-- 0x2000000
|
|--0.61%-- 0x4ff496
|
|--0.60%-- 0x672601
| 0x1
|
|--0.58%-- 0x4eec06
| |
| |--75.93%-- 0x200c280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| |--15.91%-- 0x3195280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| --8.15%-- 0x1491280
| 0x0
| 0xa0
| 0x696368752d62
|
|--0.58%-- 0x477a32
| 0x0
|
|--0.56%-- 0x477b27
| 0x0
|
|--0.56%-- 0x540e24
|
|--0.56%-- 0x40a4f4
|
|--0.55%-- 0x659d12
| 0x0
|
|--0.55%-- 0x4eec22
| |
| |--44.24%-- 0x200c280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| |--32.08%-- 0x1491280
| | 0x0
| | 0xa0
| | 0x696368752d62
| |
| --23.68%-- 0x3195280
| 0x0
| 0xa0
| 0x696368752d62
|
|--0.53%-- 0x564394
| |
| |--69.75%-- 0x0
| |
| |--23.87%-- 0x10100000002
| |
| --6.38%-- 0x10100000006
|
|--0.52%-- 0x4eeb52
|
|--0.51%-- 0x530094
|
|--0.50%-- 0x477a9e
| 0x0
--74.90%-- [...]
0.77% qemu-kvm [kernel.kallsyms] [k] __srcu_read_lock
|
--- __srcu_read_lock
|
|--91.98%-- kvm_arch_vcpu_ioctl_run
| kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--81.72%-- 0x10100000006
| |
| --18.28%-- 0x10100000002
|
|--5.81%-- kvm_vcpu_ioctl
| do_vfs_ioctl
| sys_ioctl
| system_call_fastpath
| ioctl
| |
| |--78.63%-- 0x10100000006
| |
| --21.37%-- 0x10100000002
|
|--1.06%-- fsnotify
| vfs_write
| |
| |--98.29%-- sys_write
| | system_call_fastpath
| | write
| | |
| | --100.00%-- 0x0
| |
| --1.71%-- sys_pwrite64
| system_call_fastpath
| pwrite64
| |
| |--55.68%-- 0x1f12260
| | 0x80
| | 0x480050b9e1058b48
| |
| --44.32%-- 0x309b260
| 0x80
| 0x480050b9e1058b48
|
|--0.91%-- kvm_mmu_notifier_invalidate_page
| __mmu_notifier_invalidate_page
| try_to_unmap_one
| |
| |--98.79%-- try_to_unmap_anon
| | try_to_unmap
| | 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
| | |
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