|
| From: | Richard Davies |
| Subject: | Re: [Qemu-devel] Windows VM slow boot |
| Date: | Wed, 12 Sep 2012 11:56:59 +0100 |
| User-agent: | Mutt/1.5.20 (2009-06-14) |
[ adding linux-mm - previously at http://marc.info/?t=134511509400003 ]
Hi Rik,
Since qemu-kvm 1.2.0 and Linux 3.6.0-rc5 came out, I thought that I would
retest with these.
The typical symptom now appears to be that the Windows VMs boot reasonably
fast, but then there is high CPU use and load for many minutes afterwards -
the high CPU use is both for the qemu-kvm processes themselves and also for
% sys.
I attach a perf report which seems to show that the high CPU use is in the
memory manager.
Cheers,
Richard.
# ========
# captured on: Wed Sep 12 10:25:43 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: 870K of event 'cycles'
# Event count (approx.): 432968175910
#
# Overhead Command Shared Object
Symbol
# ........ ............... ....................
..............................................
#
89.14% qemu-kvm [kernel.kallsyms] [k] _raw_spin_lock_irqsave
|
--- _raw_spin_lock_irqsave
|
|--95.47%-- 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
| |
| |--55.64%-- 0x10100000002
| |
| --44.36%-- 0x10100000006
|
|--4.53%-- 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
| |
| |--55.36%-- 0x10100000002
| |
| --44.64%-- 0x10100000006
--0.00%-- [...]
4.92% qemu-kvm [kernel.kallsyms] [k] migrate_pages
|
--- migrate_pages
|
|--99.74%-- 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
| |
| |--55.80%-- 0x10100000002
| |
| --44.20%-- 0x10100000006
--0.26%-- [...]
1.59% ksmd [kernel.kallsyms] [k] memcmp
|
--- memcmp
|
|--99.69%-- memcmp_pages
| |
| |--78.86%-- ksm_scan_thread
| | kthread
| | kernel_thread_helper
| |
| --21.14%-- try_to_merge_with_ksm_page
| ksm_scan_thread
| kthread
| kernel_thread_helper
--0.31%-- [...]
0.85% ksmd [kernel.kallsyms] [k] smp_call_function_many
|
--- smp_call_function_many
native_flush_tlb_others
|
|--99.81%-- flush_tlb_page
| ptep_clear_flush
| try_to_merge_with_ksm_page
| ksm_scan_thread
| kthread
| kernel_thread_helper
--0.19%-- [...]
0.38% swapper [kernel.kallsyms] [k] default_idle
|
--- default_idle
|
|--99.80%-- cpu_idle
| |
| |--90.53%-- start_secondary
| |
| --9.47%-- rest_init
| start_kernel
| x86_64_start_reservations
| x86_64_start_kernel
--0.20%-- [...]
0.38% qemu-kvm [kernel.kallsyms] [k]
_raw_spin_unlock_irqrestore
|
--- _raw_spin_unlock_irqrestore
|
|--94.31%-- compact_checklock_irqsave
| 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
| |
| |--59.74%-- 0x10100000006
| |
| --40.26%-- 0x10100000002
|
|--3.41%-- 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
| |
| |--53.57%-- 0x10100000006
| |
| --46.43%-- 0x10100000002
|
|--0.82%-- ntp_tick_length
| do_timer
| tick_do_update_jiffies64
| tick_sched_timer
| __run_hrtimer.isra.28
| hrtimer_interrupt
| smp_apic_timer_interrupt
| apic_timer_interrupt
| compact_checklock_irqsave
| 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
| 0x10100000002
|
|--0.76%-- __page_cache_release.part.11
| __put_compound_page
| put_compound_page
| release_pages
| free_pages_and_swap_cache
| tlb_flush_mmu
| tlb_finish_mmu
| exit_mmap
| mmput
| exit_mm
| do_exit
| do_group_exit
| get_signal_to_deliver
| do_signal
| do_notify_resume
| int_signal
--0.70%-- [...]
0.26% qemu-kvm [kernel.kallsyms] [k]
isolate_migratepages_range
|
--- isolate_migratepages_range
|
|--95.44%-- 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
| |
| |--52.46%-- 0x10100000002
| |
| --47.54%-- 0x10100000006
|
--4.56%-- 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
|
|--53.84%-- 0x10100000006
|
--46.16%-- 0x10100000002
0.21% qemu-kvm [kernel.kallsyms] [k] compact_zone
|
--- 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
|
|--53.46%-- 0x10100000002
|
--46.54%-- 0x10100000006
0.14% qemu-kvm [kernel.kallsyms] [k] mod_zone_page_state
|
--- mod_zone_page_state
|
|--70.21%-- 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
| |
| |--55.97%-- 0x10100000002
| |
| --44.03%-- 0x10100000006
|
|--29.71%-- 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
| |
| |--61.19%-- 0x10100000002
| |
| --38.81%-- 0x10100000006
--0.08%-- [...]
0.13% qemu-kvm [kernel.kallsyms] [k] flush_tlb_func
|
--- flush_tlb_func
|
|--99.47%-- generic_smp_call_function_interrupt
| smp_call_function_interrupt
| call_function_interrupt
| |
| |--91.76%-- compact_checklock_irqsave
| | 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
| | |
| | |--76.39%-- 0x10100000006
| | |
| | --23.61%-- 0x10100000002
| |
| |--7.61%-- 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
| | |
| | |--70.59%-- 0x10100000006
| | |
| | --29.41%-- 0x10100000002
| --0.63%-- [...]
|
--0.53%-- smp_call_function_interrupt
call_function_interrupt
|
|--83.32%-- compact_checklock_irqsave
| 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
| |
| |--79.99%-- 0x10100000006
| |
| --20.01%-- 0x10100000002
|
--16.68%-- 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
0.09% qemu-kvm [kernel.kallsyms] [k] free_pages_prepare
|
--- free_pages_prepare
|
|--99.75%-- __free_pages_ok
| |
| |--99.84%-- free_compound_page
| | __put_compound_page
| | put_compound_page
| | release_pages
| | free_pages_and_swap_cache
| | tlb_flush_mmu
| | tlb_finish_mmu
| | exit_mmap
| | mmput
| | exit_mm
| | do_exit
| | do_group_exit
| | get_signal_to_deliver
| | do_signal
| | do_notify_resume
| | int_signal
| --0.16%-- [...]
--0.25%-- [...]
0.08% :2585 [kernel.kallsyms] [k] free_pages_prepare
|
--- free_pages_prepare
|
|--99.47%-- __free_pages_ok
| free_compound_page
| __put_compound_page
| put_compound_page
| release_pages
| free_pages_and_swap_cache
| tlb_flush_mmu
| tlb_finish_mmu
| exit_mmap
| mmput
| exit_mm
| do_exit
| do_group_exit
| get_signal_to_deliver
| do_signal
| do_notify_resume
| int_signal
|
--0.53%-- free_hot_cold_page
__free_pages
|
|--50.65%-- zap_huge_pmd
| unmap_single_vma
| unmap_vmas
| exit_mmap
| mmput
| exit_mm
| do_exit
| do_group_exit
| get_signal_to_deliver
| do_signal
| do_notify_resume
| int_signal
|
--49.35%-- __vunmap
vfree
kvm_free_physmem_slot
kvm_free_physmem
kvm_put_kvm
kvm_vcpu_release
__fput
____fput
task_work_run
do_exit
do_group_exit
get_signal_to_deliver
do_signal
do_notify_resume
int_signal
0.07% :2561 [kernel.kallsyms] [k] free_pages_prepare
|
--- free_pages_prepare
|
|--99.55%-- __free_pages_ok
| free_compound_page
| __put_compound_page
| put_compound_page
| release_pages
| free_pages_and_swap_cache
| tlb_flush_mmu
| tlb_finish_mmu
| exit_mmap
| mmput
| exit_mm
| do_exit
| do_group_exit
| get_signal_to_deliver
| do_signal
| do_notify_resume
| int_signal
--0.45%-- [...]
0.07% qemu-kvm [kernel.kallsyms] [k] __zone_watermark_ok
|
--- __zone_watermark_ok
|
|--56.52%-- zone_watermark_ok
| 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
| |
| |--59.67%-- 0x10100000002
| |
| --40.33%-- 0x10100000006
|
--43.48%-- 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
|
|--58.50%-- 0x10100000002
|
--41.50%-- 0x10100000006
0.06% perf [kernel.kallsyms] [k] copy_user_generic_string
|
--- copy_user_generic_string
|
|--99.82%-- generic_file_buffered_write
| __generic_file_aio_write
| generic_file_aio_write
| ext4_file_write
| do_sync_write
| vfs_write
| sys_write
| system_call_fastpath
| write
| run_builtin
| main
| __libc_start_main
--0.18%-- [...]
0.05% qemu-kvm [kernel.kallsyms] [k]
compact_checklock_irqsave
|
--- compact_checklock_irqsave
|
|--82.09%-- 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
| |
| |--54.69%-- 0x10100000002
| |
| --45.31%-- 0x10100000006
|
--17.91%-- 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
|
|--59.49%-- 0x10100000002
|
--40.51%-- 0x10100000006
0.04% qemu-kvm [kernel.kallsyms] [k] call_function_interrupt
|
--- call_function_interrupt
|
|--91.95%-- compact_checklock_irqsave
| 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
| |
| |--72.81%-- 0x10100000006
| |
| --27.19%-- 0x10100000002
|
|--7.50%-- 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
| |
| |--55.56%-- 0x10100000006
| |
| --44.44%-- 0x10100000002
--0.56%-- [...]
0.04% ksmd [kernel.kallsyms] [k]
default_send_IPI_mask_sequence_phys
|
--- default_send_IPI_mask_sequence_phys
|
|--99.44%-- physflat_send_IPI_mask
| native_send_call_func_ipi
| smp_call_function_many
| native_flush_tlb_others
| flush_tlb_page
| ptep_clear_flush
| try_to_merge_with_ksm_page
| ksm_scan_thread
| kthread
| kernel_thread_helper
|
--0.56%-- native_send_call_func_ipi
smp_call_function_many
native_flush_tlb_others
flush_tlb_page
ptep_clear_flush
try_to_merge_with_ksm_page
ksm_scan_thread
kthread
kernel_thread_helper
0.03% qemu-kvm [kernel.kallsyms] [k]
generic_smp_call_function_interrupt
|
--- generic_smp_call_function_interrupt
|
|--96.97%-- smp_call_function_interrupt
| call_function_interrupt
| |
| |--97.39%-- compact_checklock_irqsave
| | 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
| | |
| | |--78.65%-- 0x10100000006
| | |
| | --21.35%-- 0x10100000002
| |
| |--2.43%-- 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
| | |
| | |--57.14%-- 0x10100000002
| | |
| | --42.86%-- 0x10100000006
| --0.19%-- [...]
|
--3.03%-- call_function_interrupt
|
|--77.79%-- compact_checklock_irqsave
| 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
| |
| |--71.42%-- 0x10100000006
| |
| --28.58%-- 0x10100000002
|
--22.21%-- 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
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