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Date: Mon, 25 Apr 2022 17:15:49 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Dave Chinner <dchinner@...hat.com>
Cc: "Darrick J. Wong" <djwong@...nel.org>, Jan Kara <jack@...e.cz>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
lkp@...el.com, ying.huang@...el.com, feng.tang@...el.com,
zhengjun.xing@...ux.intel.com, fengwei.yin@...el.com
Subject: [xfs] 919edbadeb: stress-ng.dirdeep.ops_per_sec 173.7% improvement
Greeting,
FYI, we noticed a 173.7% improvement of stress-ng.dirdeep.ops_per_sec due to commit:
commit: 919edbadebe17a67193533f531c2920c03e40fa4 ("xfs: drop async cache flushes from CIL commits.")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: stress-ng
on test machine: 96 threads 2 sockets Ice Lake with 256G memory
with following parameters:
nr_threads: 10%
disk: 1HDD
testtime: 60s
fs: xfs
class: filesystem
test: dirdeep
cpufreq_governor: performance
ucode: 0xb000280
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
sudo bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
sudo bin/lkp run generated-yaml-file
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
=========================================================================================
class/compiler/cpufreq_governor/disk/fs/kconfig/nr_threads/rootfs/tbox_group/test/testcase/testtime/ucode:
filesystem/gcc-11/performance/1HDD/xfs/x86_64-rhel-8.3/10%/debian-10.4-x86_64-20200603.cgz/lkp-icl-2sp1/dirdeep/stress-ng/60s/0xb000280
commit:
5652ef3170 ("xfs: shutdown during log recovery needs to mark the log shutdown")
919edbadeb ("xfs: drop async cache flushes from CIL commits.")
5652ef31705f240e 919edbadebe17a67193533f531c
---------------- ---------------------------
%stddev %change %stddev
\ | \
1239319 ± 14% +173.8% 3393124 stress-ng.dirdeep.ops
20409 ± 14% +173.7% 55868 stress-ng.dirdeep.ops_per_sec
28.70 ± 20% +47.0% 42.20 ± 12% stress-ng.time.percent_of_cpu_this_job_got
17.72 ± 20% +42.6% 25.27 ± 12% stress-ng.time.system_time
98139 +24.7% 122342 stress-ng.time.voluntary_context_switches
14.45 ± 16% +27.7% 18.45 ± 9% perf-stat.i.metric.M/sec
6838 ± 2% +9.9% 7514 vmstat.system.cs
0.08 ± 29% +0.6 0.73 ± 4% mpstat.cpu.all.iowait%
0.36 ± 16% +0.1 0.48 ± 10% mpstat.cpu.all.sys%
0.03 ± 11% +0.0 0.05 ± 5% mpstat.cpu.all.usr%
41650 +1.1% 42105 proc-vmstat.nr_slab_reclaimable
457667 +2.8% 470374 proc-vmstat.numa_hit
370915 +3.5% 384016 proc-vmstat.numa_local
457733 +2.8% 470408 proc-vmstat.pgalloc_normal
57167 +4.6% 59823 proc-vmstat.pgpgout
92.69 -8.1 84.59 ± 2% perf-profile.calltrace.cycles-pp.secondary_startup_64_no_verify
91.67 -8.0 83.63 ± 2% perf-profile.calltrace.cycles-pp.cpu_startup_entry.secondary_startup_64_no_verify
91.44 -8.0 83.42 ± 2% perf-profile.calltrace.cycles-pp.do_idle.cpu_startup_entry.secondary_startup_64_no_verify
90.10 -7.9 82.19 ± 2% perf-profile.calltrace.cycles-pp.cpuidle_idle_call.do_idle.cpu_startup_entry.secondary_startup_64_no_verify
81.93 -7.8 74.11 perf-profile.calltrace.cycles-pp.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry.secondary_startup_64_no_verify
80.73 -7.6 73.11 ± 2% perf-profile.calltrace.cycles-pp.cpuidle_enter_state.cpuidle_enter.cpuidle_idle_call.do_idle.cpu_startup_entry
1.29 ± 33% -0.8 0.53 ± 36% perf-profile.calltrace.cycles-pp.link_path_walk.path_openat.do_filp_open.do_sys_openat2.__x64_sys_openat
0.90 ± 12% -0.2 0.71 ± 12% perf-profile.calltrace.cycles-pp.arch_scale_freq_tick.scheduler_tick.update_process_times.tick_sched_handle.tick_sched_timer
0.82 ± 20% +0.3 1.12 ± 10% perf-profile.calltrace.cycles-pp.rcu_core.__softirqentry_text_start.__irq_exit_rcu.sysvec_apic_timer_interrupt.asm_sysvec_apic_timer_interrupt
0.00 +0.7 0.74 ± 34% perf-profile.calltrace.cycles-pp.xfs_trans_reserve.xfs_trans_alloc.xfs_trans_alloc_ichange.xfs_setattr_nonsize.notify_change
0.00 +0.8 0.80 ± 18% perf-profile.calltrace.cycles-pp.task_work_run.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64
0.00 +0.9 0.87 ± 19% perf-profile.calltrace.cycles-pp.exit_to_user_mode_loop.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +0.9 0.88 ± 19% perf-profile.calltrace.cycles-pp.exit_to_user_mode_prepare.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
0.00 +0.9 0.91 ± 20% perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
0.00 +0.9 0.93 ± 30% perf-profile.calltrace.cycles-pp.xfs_trans_alloc.xfs_trans_alloc_ichange.xfs_setattr_nonsize.notify_change.vfs_utimes
0.00 +1.2 1.18 ± 18% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.__close
0.00 +1.2 1.20 ± 18% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.__close
0.00 +1.3 1.32 ± 28% perf-profile.calltrace.cycles-pp.xfs_trans_alloc_ichange.xfs_setattr_nonsize.notify_change.vfs_utimes.do_utimes
0.00 +1.4 1.41 ± 19% perf-profile.calltrace.cycles-pp.__close
0.00 +1.8 1.80 ± 37% perf-profile.calltrace.cycles-pp.xlog_cil_commit.__xfs_trans_commit.xfs_setattr_nonsize.notify_change.vfs_utimes
0.00 +2.1 2.08 ± 36% perf-profile.calltrace.cycles-pp.__xfs_trans_commit.xfs_setattr_nonsize.notify_change.vfs_utimes.do_utimes
0.00 +4.0 3.95 ± 31% perf-profile.calltrace.cycles-pp.xfs_setattr_nonsize.notify_change.vfs_utimes.do_utimes.__x64_sys_utimensat
0.00 +4.1 4.15 ± 30% perf-profile.calltrace.cycles-pp.notify_change.vfs_utimes.do_utimes.__x64_sys_utimensat.do_syscall_64
0.00 +4.3 4.34 ± 30% perf-profile.calltrace.cycles-pp.vfs_utimes.do_utimes.__x64_sys_utimensat.do_syscall_64.entry_SYSCALL_64_after_hwframe
0.00 +4.4 4.38 ± 30% perf-profile.calltrace.cycles-pp.do_utimes.__x64_sys_utimensat.do_syscall_64.entry_SYSCALL_64_after_hwframe.futimens
0.00 +4.7 4.67 ± 28% perf-profile.calltrace.cycles-pp.__x64_sys_utimensat.do_syscall_64.entry_SYSCALL_64_after_hwframe.futimens
0.00 +4.7 4.73 ± 28% perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.futimens
0.00 +4.8 4.75 ± 28% perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.futimens
0.00 +4.9 4.94 ± 28% perf-profile.calltrace.cycles-pp.futimens
92.69 -8.1 84.59 ± 2% perf-profile.children.cycles-pp.do_idle
92.69 -8.1 84.59 ± 2% perf-profile.children.cycles-pp.secondary_startup_64_no_verify
92.69 -8.1 84.59 ± 2% perf-profile.children.cycles-pp.cpu_startup_entry
91.27 -8.0 83.28 ± 2% perf-profile.children.cycles-pp.cpuidle_idle_call
82.90 -7.9 75.02 ± 2% perf-profile.children.cycles-pp.cpuidle_enter
82.68 -7.9 74.82 ± 2% perf-profile.children.cycles-pp.cpuidle_enter_state
2.37 ± 24% -1.5 0.89 ± 19% perf-profile.children.cycles-pp.link_path_walk
1.45 ± 26% -1.0 0.47 ± 22% perf-profile.children.cycles-pp.walk_component
1.04 ± 27% -0.8 0.25 ± 42% perf-profile.children.cycles-pp.path_lookupat
0.98 ± 34% -0.6 0.34 ± 31% perf-profile.children.cycles-pp.lookup_fast
0.68 ± 52% -0.4 0.23 ± 40% perf-profile.children.cycles-pp.__d_lookup_rcu
1.44 ± 14% -0.3 1.10 ± 20% perf-profile.children.cycles-pp.load_balance
1.05 ± 10% -0.3 0.77 ± 17% perf-profile.children.cycles-pp.find_busiest_group
0.99 ± 10% -0.3 0.73 ± 16% perf-profile.children.cycles-pp.update_sd_lb_stats
0.78 ± 13% -0.2 0.57 ± 11% perf-profile.children.cycles-pp.update_sg_lb_stats
0.91 ± 11% -0.2 0.72 ± 11% perf-profile.children.cycles-pp.arch_scale_freq_tick
0.27 ± 32% -0.2 0.10 ± 31% perf-profile.children.cycles-pp.step_into
0.20 ± 30% -0.1 0.09 ± 32% perf-profile.children.cycles-pp.__wait_for_common
0.21 ± 24% -0.1 0.10 ± 30% perf-profile.children.cycles-pp.schedule_timeout
0.00 +0.1 0.06 ± 19% perf-profile.children.cycles-pp.obj_cgroup_charge
0.02 ±154% +0.1 0.09 ± 53% perf-profile.children.cycles-pp.xlog_cil_alloc_shadow_bufs
0.00 +0.1 0.08 ± 26% perf-profile.children.cycles-pp.__do_sys_newfstat
0.01 ±300% +0.1 0.09 ± 27% perf-profile.children.cycles-pp.__raw_callee_save___native_queued_spin_unlock
0.00 +0.1 0.09 ± 23% perf-profile.children.cycles-pp.close_fd
0.00 +0.1 0.09 ± 40% perf-profile.children.cycles-pp.filldir64
0.00 +0.1 0.09 ± 30% perf-profile.children.cycles-pp.__legitimize_path
0.00 +0.1 0.10 ± 28% perf-profile.children.cycles-pp.fput_many
0.04 ± 83% +0.1 0.14 ± 23% perf-profile.children.cycles-pp._IO_str_seekoff
0.00 +0.1 0.10 ± 34% perf-profile.children.cycles-pp.rcu_all_qs
0.00 +0.1 0.10 ± 34% perf-profile.children.cycles-pp.xfs_iunlock
0.01 ±201% +0.1 0.12 ± 31% perf-profile.children.cycles-pp.up_write
0.00 +0.1 0.11 ± 28% perf-profile.children.cycles-pp.__call_rcu
0.00 +0.1 0.11 ± 43% perf-profile.children.cycles-pp.open_last_lookups
0.00 +0.1 0.12 ± 31% perf-profile.children.cycles-pp.__check_object_size
0.00 +0.1 0.12 ± 28% perf-profile.children.cycles-pp.alloc_fd
0.00 +0.1 0.12 ± 28% perf-profile.children.cycles-pp.try_to_unlazy
0.00 +0.1 0.12 ± 32% perf-profile.children.cycles-pp.__might_fault
0.01 ±300% +0.1 0.13 ± 21% perf-profile.children.cycles-pp.mod_objcg_state
0.00 +0.1 0.12 ± 23% perf-profile.children.cycles-pp.complete_walk
0.00 +0.1 0.13 ± 21% perf-profile.children.cycles-pp.__fxstat
0.00 +0.1 0.13 ± 25% perf-profile.children.cycles-pp.memset_erms
0.00 +0.1 0.13 ± 22% perf-profile.children.cycles-pp.stress_dir_exercise
0.00 +0.1 0.14 ± 23% perf-profile.children.cycles-pp.down_write
0.00 +0.1 0.14 ± 20% perf-profile.children.cycles-pp.xfs_file_fsync
0.01 ±300% +0.1 0.15 ± 26% perf-profile.children.cycles-pp.copy_user_enhanced_fast_string
0.06 ± 52% +0.1 0.21 ± 26% perf-profile.children.cycles-pp.dput
0.00 +0.1 0.15 ± 47% perf-profile.children.cycles-pp.xlog_grant_push_threshold
0.00 +0.2 0.15 ± 49% perf-profile.children.cycles-pp.xlog_grant_push_ail
0.00 +0.2 0.15 ± 50% perf-profile.children.cycles-pp.xlog_space_left
0.06 ± 73% +0.2 0.21 ± 62% perf-profile.children.cycles-pp.xlog_force_lsn
0.01 ±300% +0.2 0.16 ± 30% perf-profile.children.cycles-pp.xfs_inode_to_log_dinode
0.00 +0.2 0.15 ± 29% perf-profile.children.cycles-pp.xfs_dir2_sf_getdents
0.02 ±159% +0.2 0.18 ± 33% perf-profile.children.cycles-pp.memcg_slab_post_alloc_hook
0.00 +0.2 0.17 ± 22% perf-profile.children.cycles-pp.filp_close
0.00 +0.2 0.17 ± 28% perf-profile.children.cycles-pp.__close_nocancel
0.00 +0.2 0.17 ± 25% perf-profile.children.cycles-pp.xfs_release
0.00 +0.2 0.18 ± 30% perf-profile.children.cycles-pp.xfs_readdir
0.07 ± 38% +0.2 0.25 ± 24% perf-profile.children.cycles-pp.xfs_trans_log_inode
0.01 ±299% +0.2 0.19 ± 24% perf-profile.children.cycles-pp.__might_sleep
0.01 ±201% +0.2 0.20 ± 27% perf-profile.children.cycles-pp.__cond_resched
0.08 ± 67% +0.2 0.28 ± 22% perf-profile.children.cycles-pp.strncpy_from_user
0.00 +0.2 0.19 ± 33% perf-profile.children.cycles-pp.apparmor_file_free_security
0.00 +0.2 0.20 ± 31% perf-profile.children.cycles-pp._copy_from_user
0.02 ±204% +0.2 0.22 ± 26% perf-profile.children.cycles-pp.xfs_inode_item_format
0.00 +0.2 0.20 ± 19% perf-profile.children.cycles-pp.xlog_ticket_alloc
0.00 +0.2 0.21 ± 32% perf-profile.children.cycles-pp.security_file_free
0.04 ± 88% +0.2 0.25 ± 27% perf-profile.children.cycles-pp.memcg_slab_free_hook
0.13 ± 47% +0.2 0.35 ± 61% perf-profile.children.cycles-pp.native_queued_spin_lock_slowpath
0.00 +0.2 0.24 ± 30% perf-profile.children.cycles-pp.apparmor_file_open
0.00 +0.2 0.24 ± 30% perf-profile.children.cycles-pp.get_timespec64
0.00 +0.2 0.24 ± 31% perf-profile.children.cycles-pp.apparmor_capable
0.00 +0.2 0.25 ± 27% perf-profile.children.cycles-pp.iterate_dir
0.00 +0.2 0.25 ± 30% perf-profile.children.cycles-pp.security_file_open
0.00 +0.3 0.26 ± 34% perf-profile.children.cycles-pp.down_read
0.01 ±300% +0.3 0.26 ± 31% perf-profile.children.cycles-pp.xfs_trans_ijoin
0.02 ±300% +0.3 0.28 ± 51% perf-profile.children.cycles-pp.xlog_grant_add_space
0.02 ±201% +0.3 0.28 ± 22% perf-profile.children.cycles-pp.xlog_cil_insert_format_items
0.00 +0.3 0.27 ± 27% perf-profile.children.cycles-pp.__x64_sys_getdents64
0.06 ± 55% +0.3 0.34 ± 26% perf-profile.children.cycles-pp.__might_resched
0.01 ±300% +0.3 0.29 ± 18% perf-profile.children.cycles-pp.__x64_sys_close
0.01 ±299% +0.3 0.29 ± 25% perf-profile.children.cycles-pp.apparmor_file_alloc_security
0.00 +0.3 0.29 ± 29% perf-profile.children.cycles-pp.security_capable
0.01 ±300% +0.3 0.30 ± 23% perf-profile.children.cycles-pp.syscall_return_via_sysret
0.00 +0.3 0.29 ± 29% perf-profile.children.cycles-pp.has_capability_noaudit
0.12 ± 45% +0.3 0.43 ± 20% perf-profile.children.cycles-pp.getname_flags
0.03 ±127% +0.3 0.34 ± 25% perf-profile.children.cycles-pp.__open_nocancel
0.04 ± 85% +0.3 0.36 ± 15% perf-profile.children.cycles-pp.rcu_do_batch
0.01 ±201% +0.3 0.33 ± 26% perf-profile.children.cycles-pp.__entry_text_start
0.00 +0.3 0.33 ± 22% perf-profile.children.cycles-pp.telldir
0.85 ± 19% +0.3 1.20 ± 9% perf-profile.children.cycles-pp.rcu_core
0.01 ±300% +0.4 0.44 ± 24% perf-profile.children.cycles-pp.security_file_alloc
0.01 ±200% +0.4 0.45 ± 23% perf-profile.children.cycles-pp.do_dentry_open
0.09 ± 27% +0.5 0.54 ± 21% perf-profile.children.cycles-pp.kmem_cache_free
0.03 ±300% +0.5 0.52 ± 39% perf-profile.children.cycles-pp.xfs_log_ticket_ungrant
1.01 ± 12% +0.5 1.51 ± 21% perf-profile.children.cycles-pp._raw_spin_lock
0.02 ±153% +0.6 0.66 ± 22% perf-profile.children.cycles-pp.do_open
0.01 ±299% +0.7 0.67 ± 19% perf-profile.children.cycles-pp.__fput
0.08 ±176% +0.7 0.76 ± 33% perf-profile.children.cycles-pp.xfs_log_reserve
0.09 ±146% +0.7 0.79 ± 33% perf-profile.children.cycles-pp.xfs_trans_reserve
0.08 ± 53% +0.7 0.79 ± 39% perf-profile.children.cycles-pp.xlog_cil_insert_items
0.15 ± 34% +0.8 0.99 ± 15% perf-profile.children.cycles-pp.kmem_cache_alloc
0.03 ± 88% +0.8 0.88 ± 19% perf-profile.children.cycles-pp.task_work_run
0.06 ± 62% +0.9 0.93 ± 20% perf-profile.children.cycles-pp.__alloc_file
0.12 ±113% +0.9 0.99 ± 29% perf-profile.children.cycles-pp.xfs_trans_alloc
0.06 ± 62% +0.9 0.95 ± 20% perf-profile.children.cycles-pp.alloc_empty_file
0.04 ± 87% +0.9 0.95 ± 19% perf-profile.children.cycles-pp.exit_to_user_mode_loop
0.05 ± 69% +0.9 0.99 ± 19% perf-profile.children.cycles-pp.exit_to_user_mode_prepare
0.07 ± 70% +1.1 1.13 ± 19% perf-profile.children.cycles-pp.syscall_exit_to_user_mode
0.00 +1.3 1.32 ± 28% perf-profile.children.cycles-pp.xfs_trans_alloc_ichange
0.07 ± 62% +1.4 1.46 ± 19% perf-profile.children.cycles-pp.__close
0.21 ± 43% +1.8 1.99 ± 34% perf-profile.children.cycles-pp.xlog_cil_commit
0.24 ± 40% +2.1 2.29 ± 33% perf-profile.children.cycles-pp.__xfs_trans_commit
0.00 +4.0 3.96 ± 31% perf-profile.children.cycles-pp.xfs_setattr_nonsize
0.00 +4.2 4.16 ± 30% perf-profile.children.cycles-pp.notify_change
0.00 +4.3 4.35 ± 30% perf-profile.children.cycles-pp.vfs_utimes
0.00 +4.4 4.38 ± 30% perf-profile.children.cycles-pp.do_utimes
0.00 +4.7 4.67 ± 28% perf-profile.children.cycles-pp.__x64_sys_utimensat
0.00 +5.0 5.00 ± 28% perf-profile.children.cycles-pp.futimens
5.13 ± 17% +7.0 12.18 ± 17% perf-profile.children.cycles-pp.do_syscall_64
5.14 ± 17% +7.1 12.25 ± 17% perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
0.60 ± 47% -0.4 0.20 ± 29% perf-profile.self.cycles-pp.__d_lookup_rcu
0.90 ± 11% -0.2 0.72 ± 11% perf-profile.self.cycles-pp.arch_scale_freq_tick
0.26 ± 33% -0.2 0.07 ± 44% perf-profile.self.cycles-pp.lookup_fast
0.18 ± 41% -0.1 0.07 ± 48% perf-profile.self.cycles-pp.walk_component
0.02 ±154% +0.1 0.09 ± 36% perf-profile.self.cycles-pp.__nss_group_lookup
0.00 +0.1 0.08 ± 34% perf-profile.self.cycles-pp.do_syscall_64
0.00 +0.1 0.08 ± 39% perf-profile.self.cycles-pp.__alloc_file
0.00 +0.1 0.09 ± 40% perf-profile.self.cycles-pp.do_dentry_open
0.00 +0.1 0.09 ± 42% perf-profile.self.cycles-pp.filldir64
0.00 +0.1 0.09 ± 39% perf-profile.self.cycles-pp.xfs_trans_ijoin
0.01 ±299% +0.1 0.10 ± 16% perf-profile.self.cycles-pp.mod_objcg_state
0.01 ±201% +0.1 0.11 ± 26% perf-profile.self.cycles-pp.memcg_slab_post_alloc_hook
0.01 ±201% +0.1 0.11 ± 28% perf-profile.self.cycles-pp.up_write
0.01 ±300% +0.1 0.11 ± 26% perf-profile.self.cycles-pp._IO_str_seekoff
0.02 ±154% +0.1 0.13 ± 26% perf-profile.self.cycles-pp.strncpy_from_user
0.01 ±200% +0.1 0.13 ± 38% perf-profile.self.cycles-pp.memcg_slab_free_hook
0.01 ±299% +0.1 0.13 ± 26% perf-profile.self.cycles-pp.__cond_resched
0.00 +0.1 0.13 ± 23% perf-profile.self.cycles-pp.stress_dir_exercise
0.00 +0.1 0.13 ± 24% perf-profile.self.cycles-pp.syscall_exit_to_user_mode
0.01 ±300% +0.1 0.13 ± 22% perf-profile.self.cycles-pp.xfs_trans_log_inode
0.00 +0.1 0.13 ± 25% perf-profile.self.cycles-pp.memset_erms
0.00 +0.1 0.13 ± 43% perf-profile.self.cycles-pp.xlog_cil_commit
0.01 ±299% +0.1 0.14 ± 25% perf-profile.self.cycles-pp.copy_user_enhanced_fast_string
0.00 +0.1 0.14 ± 27% perf-profile.self.cycles-pp.__entry_text_start
0.00 +0.1 0.15 ± 50% perf-profile.self.cycles-pp.xlog_space_left
0.00 +0.2 0.15 ± 27% perf-profile.self.cycles-pp.__might_sleep
0.01 ±201% +0.2 0.19 ± 24% perf-profile.self.cycles-pp.kmem_cache_free
0.00 +0.2 0.19 ± 33% perf-profile.self.cycles-pp.apparmor_file_free_security
0.13 ± 46% +0.2 0.34 ± 62% perf-profile.self.cycles-pp.native_queued_spin_lock_slowpath
0.00 +0.2 0.22 ± 37% perf-profile.self.cycles-pp.down_read
0.00 +0.2 0.23 ± 30% perf-profile.self.cycles-pp.apparmor_file_open
0.00 +0.2 0.24 ± 31% perf-profile.self.cycles-pp.apparmor_capable
0.00 +0.2 0.25 ± 26% perf-profile.self.cycles-pp.apparmor_file_alloc_security
0.03 ±105% +0.3 0.29 ± 14% perf-profile.self.cycles-pp.kmem_cache_alloc
0.05 ± 69% +0.3 0.31 ± 27% perf-profile.self.cycles-pp.__might_resched
0.00 +0.3 0.28 ± 52% perf-profile.self.cycles-pp.xlog_grant_add_space
0.01 ±300% +0.3 0.29 ± 24% perf-profile.self.cycles-pp.syscall_return_via_sysret
0.00 +0.5 0.48 ± 40% perf-profile.self.cycles-pp.xfs_log_ticket_ungrant
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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