From: kernel test robot <oliver.sang@intel.com>
To: Amir Goldstein <amir73il@gmail.com>
Cc: <oe-lkp@lists.linux.dev>, <lkp@intel.com>, <oliver.sang@intel.com>
Subject: [amir73il:sb_write_barrier] [fanotify] 9d1fd61f1d: unixbench.throughput -7.9% regression
Date: Wed, 29 May 2024 16:25:58 +0800 [thread overview]
Message-ID: <202405291640.2016ebfe-oliver.sang@intel.com> (raw)
Hello,
kernel test robot noticed a -7.9% regression of unixbench.throughput on:
commit: 9d1fd61f1d9bb74e44bdcc8767ba7008a08c6075 ("fanotify: pass optional file access range in pre-content event")
https://github.com/amir73il/linux sb_write_barrier
testcase: unixbench
test machine: 224 threads 2 sockets Intel(R) Xeon(R) Platinum 8480CTDX (Sapphire Rapids) with 256G memory
parameters:
runtime: 300s
nr_task: 100%
test: fsbuffer-w
cpufreq_governor: performance
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202405291640.2016ebfe-oliver.sang@intel.com
Details are as below:
-------------------------------------------------------------------------------------------------->
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240529/202405291640.2016ebfe-oliver.sang@intel.com
=========================================================================================
compiler/cpufreq_governor/kconfig/nr_task/rootfs/runtime/tbox_group/test/testcase:
gcc-13/performance/x86_64-rhel-8.3/100%/debian-12-x86_64-20240206.cgz/300s/lkp-spr-r02/fsbuffer-w/unixbench
commit:
00c423c0d8 ("fanotify: introduce FAN_PRE_MODIFY permission event")
9d1fd61f1d ("fanotify: pass optional file access range in pre-content event")
00c423c0d82eabad 9d1fd61f1d9bb74e44bdcc8767b
---------------- ---------------------------
%stddev %change %stddev
\ | \
1.23e+08 -7.9% 1.133e+08 unixbench.throughput
6169 -7.7% 5694 unixbench.time.user_time
4.566e+10 -7.9% 4.206e+10 unixbench.workload
1.513e+11 -4.5% 1.445e+11 perf-stat.i.branch-instructions
6891152 +4.8% 7221484 perf-stat.i.branch-misses
29764445 ± 2% -7.4% 27565609 ± 3% perf-stat.i.cache-references
0.91 +2.0% 0.93 perf-stat.i.cpi
7.187e+11 -2.7% 6.996e+11 perf-stat.i.instructions
1.26 -2.6% 1.23 perf-stat.i.ipc
0.00 +0.0 0.01 perf-stat.overall.branch-miss-rate%
0.73 +2.7% 0.75 perf-stat.overall.cpi
1.37 -2.6% 1.34 perf-stat.overall.ipc
5828 +5.7% 6162 perf-stat.overall.path-length
1.505e+11 -4.5% 1.437e+11 perf-stat.ps.branch-instructions
6873687 +4.8% 7203107 perf-stat.ps.branch-misses
29721957 ± 2% -7.3% 27538369 ± 3% perf-stat.ps.cache-references
7.148e+11 -2.6% 6.96e+11 perf-stat.ps.instructions
2.662e+14 -2.6% 2.592e+14 perf-stat.total.instructions
57.79 -2.0 55.78 perf-profile.calltrace.cycles-pp.generic_file_write_iter.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
37.58 -2.0 35.63 perf-profile.calltrace.cycles-pp.generic_perform_write.generic_file_write_iter.vfs_write.ksys_write.do_syscall_64
13.06 -1.0 12.04 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64.write
13.81 -1.0 12.83 perf-profile.calltrace.cycles-pp.simple_write_begin.generic_perform_write.generic_file_write_iter.vfs_write.ksys_write
12.72 -0.9 11.78 perf-profile.calltrace.cycles-pp.__filemap_get_folio.simple_write_begin.generic_perform_write.generic_file_write_iter.vfs_write
7.00 -0.5 6.47 perf-profile.calltrace.cycles-pp.copy_page_from_iter_atomic.generic_perform_write.generic_file_write_iter.vfs_write.ksys_write
6.53 -0.5 6.02 perf-profile.calltrace.cycles-pp.filemap_get_entry.__filemap_get_folio.simple_write_begin.generic_perform_write.generic_file_write_iter
5.36 -0.5 4.89 perf-profile.calltrace.cycles-pp.simple_write_end.generic_perform_write.generic_file_write_iter.vfs_write.ksys_write
3.66 -0.4 3.28 perf-profile.calltrace.cycles-pp.security_file_permission.rw_verify_area.vfs_write.ksys_write.do_syscall_64
2.68 -0.3 2.36 perf-profile.calltrace.cycles-pp.apparmor_file_permission.security_file_permission.rw_verify_area.vfs_write.ksys_write
6.57 -0.2 6.34 perf-profile.calltrace.cycles-pp.file_remove_privs_flags.__generic_file_write_iter.generic_file_write_iter.vfs_write.ksys_write
2.36 ± 2% -0.2 2.18 ± 2% perf-profile.calltrace.cycles-pp.__fdget_pos.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
1.83 -0.2 1.66 perf-profile.calltrace.cycles-pp.folio_unlock.simple_write_end.generic_perform_write.generic_file_write_iter.vfs_write
2.92 -0.2 2.76 perf-profile.calltrace.cycles-pp.down_write.generic_file_write_iter.vfs_write.ksys_write.do_syscall_64
2.65 -0.2 2.49 perf-profile.calltrace.cycles-pp.xas_load.filemap_get_entry.__filemap_get_folio.simple_write_begin.generic_perform_write
3.95 -0.1 3.83 perf-profile.calltrace.cycles-pp.security_inode_need_killpriv.file_remove_privs_flags.__generic_file_write_iter.generic_file_write_iter.vfs_write
1.62 -0.1 1.50 perf-profile.calltrace.cycles-pp.up_write.generic_file_write_iter.vfs_write.ksys_write.do_syscall_64
0.74 -0.1 0.64 perf-profile.calltrace.cycles-pp.__cond_resched.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
3.26 -0.1 3.17 perf-profile.calltrace.cycles-pp.cap_inode_need_killpriv.security_inode_need_killpriv.file_remove_privs_flags.__generic_file_write_iter.generic_file_write_iter
3.57 -0.1 3.49 perf-profile.calltrace.cycles-pp.__fsnotify_parent.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
1.61 -0.1 1.53 perf-profile.calltrace.cycles-pp.syscall_exit_to_user_mode.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
0.93 -0.1 0.85 perf-profile.calltrace.cycles-pp.balance_dirty_pages_ratelimited_flags.generic_perform_write.generic_file_write_iter.vfs_write.ksys_write
1.05 -0.1 0.99 perf-profile.calltrace.cycles-pp.xas_descend.xas_load.filemap_get_entry.__filemap_get_folio.simple_write_begin
0.61 -0.1 0.55 perf-profile.calltrace.cycles-pp.w_test
0.64 -0.1 0.58 perf-profile.calltrace.cycles-pp.x64_sys_call.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
0.87 -0.1 0.82 perf-profile.calltrace.cycles-pp.aa_file_perm.apparmor_file_permission.security_file_permission.rw_verify_area.vfs_write
2.50 -0.1 2.44 perf-profile.calltrace.cycles-pp.__vfs_getxattr.cap_inode_need_killpriv.security_inode_need_killpriv.file_remove_privs_flags.__generic_file_write_iter
0.62 -0.1 0.56 perf-profile.calltrace.cycles-pp.xas_start.xas_load.filemap_get_entry.__filemap_get_folio.simple_write_begin
0.74 -0.0 0.69 perf-profile.calltrace.cycles-pp.setattr_should_drop_suidgid.file_remove_privs_flags.__generic_file_write_iter.generic_file_write_iter.vfs_write
0.91 -0.0 0.86 perf-profile.calltrace.cycles-pp.folio_wait_stable.__filemap_get_folio.simple_write_begin.generic_perform_write.generic_file_write_iter
0.84 -0.0 0.79 perf-profile.calltrace.cycles-pp.xattr_resolve_name.__vfs_getxattr.cap_inode_need_killpriv.security_inode_need_killpriv.file_remove_privs_flags
0.68 -0.0 0.64 perf-profile.calltrace.cycles-pp.__cond_resched.__filemap_get_folio.simple_write_begin.generic_perform_write.generic_file_write_iter
0.74 -0.0 0.71 perf-profile.calltrace.cycles-pp.folio_mark_dirty.simple_write_end.generic_perform_write.generic_file_write_iter.vfs_write
0.62 -0.0 0.59 perf-profile.calltrace.cycles-pp.__cond_resched.generic_perform_write.generic_file_write_iter.vfs_write.ksys_write
0.97 +0.0 1.00 perf-profile.calltrace.cycles-pp.strcmp.__vfs_getxattr.cap_inode_need_killpriv.security_inode_need_killpriv.file_remove_privs_flags
0.91 +0.1 0.97 perf-profile.calltrace.cycles-pp.timestamp_truncate.inode_needs_update_time.file_update_time.__generic_file_write_iter.generic_file_write_iter
0.86 ± 3% +0.1 0.94 perf-profile.calltrace.cycles-pp.generic_write_check_limits.generic_write_checks.generic_file_write_iter.vfs_write.ksys_write
0.58 ± 2% +0.1 0.66 ± 7% perf-profile.calltrace.cycles-pp.ktime_get_coarse_real_ts64.inode_needs_update_time.file_update_time.__generic_file_write_iter.generic_file_write_iter
11.24 +0.1 11.36 perf-profile.calltrace.cycles-pp.__generic_file_write_iter.generic_file_write_iter.vfs_write.ksys_write.do_syscall_64
2.01 ± 2% +0.1 2.14 perf-profile.calltrace.cycles-pp.generic_write_checks.generic_file_write_iter.vfs_write.ksys_write.do_syscall_64
6.04 +0.2 6.24 perf-profile.calltrace.cycles-pp.fault_in_iov_iter_readable.generic_perform_write.generic_file_write_iter.vfs_write.ksys_write
5.17 +0.2 5.42 perf-profile.calltrace.cycles-pp.fault_in_readable.fault_in_iov_iter_readable.generic_perform_write.generic_file_write_iter.vfs_write
96.75 +0.3 97.03 perf-profile.calltrace.cycles-pp.write
2.57 +0.4 2.92 perf-profile.calltrace.cycles-pp.inode_needs_update_time.file_update_time.__generic_file_write_iter.generic_file_write_iter.vfs_write
3.20 +0.4 3.57 perf-profile.calltrace.cycles-pp.file_update_time.__generic_file_write_iter.generic_file_write_iter.vfs_write.ksys_write
84.82 +1.1 85.88 perf-profile.calltrace.cycles-pp.entry_SYSCALL_64_after_hwframe.write
83.38 +1.2 84.56 perf-profile.calltrace.cycles-pp.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
78.73 +1.5 80.20 perf-profile.calltrace.cycles-pp.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
74.54 +1.8 76.32 perf-profile.calltrace.cycles-pp.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe.write
0.00 +4.0 3.99 perf-profile.calltrace.cycles-pp.__fsnotify_parent.rw_verify_area.vfs_write.ksys_write.do_syscall_64
5.32 +4.2 9.48 perf-profile.calltrace.cycles-pp.rw_verify_area.vfs_write.ksys_write.do_syscall_64.entry_SYSCALL_64_after_hwframe
58.42 -2.0 56.38 perf-profile.children.cycles-pp.generic_file_write_iter
38.46 -2.0 36.50 perf-profile.children.cycles-pp.generic_perform_write
13.99 -1.0 13.01 perf-profile.children.cycles-pp.simple_write_begin
13.11 -1.0 12.15 perf-profile.children.cycles-pp.__filemap_get_folio
7.23 -0.6 6.66 perf-profile.children.cycles-pp.entry_SYSCALL_64
7.12 -0.5 6.59 perf-profile.children.cycles-pp.copy_page_from_iter_atomic
6.73 -0.5 6.21 perf-profile.children.cycles-pp.filemap_get_entry
5.76 -0.5 5.26 perf-profile.children.cycles-pp.simple_write_end
4.05 -0.4 3.64 perf-profile.children.cycles-pp.security_file_permission
2.93 -0.3 2.59 perf-profile.children.cycles-pp.apparmor_file_permission
4.32 -0.3 4.04 perf-profile.children.cycles-pp.entry_SYSRETQ_unsafe_stack
4.20 -0.3 3.92 perf-profile.children.cycles-pp.__cond_resched
6.91 -0.2 6.67 perf-profile.children.cycles-pp.file_remove_privs_flags
2.43 -0.2 2.24 perf-profile.children.cycles-pp.rcu_all_qs
3.10 -0.2 2.92 perf-profile.children.cycles-pp.xas_load
2.47 ± 2% -0.2 2.29 ± 2% perf-profile.children.cycles-pp.__fdget_pos
1.92 -0.2 1.74 perf-profile.children.cycles-pp.folio_unlock
3.11 -0.2 2.94 perf-profile.children.cycles-pp.down_write
4.18 -0.1 4.04 perf-profile.children.cycles-pp.security_inode_need_killpriv
1.68 -0.1 1.56 perf-profile.children.cycles-pp.up_write
3.48 -0.1 3.38 perf-profile.children.cycles-pp.cap_inode_need_killpriv
1.96 -0.1 1.87 perf-profile.children.cycles-pp.syscall_exit_to_user_mode
1.28 -0.1 1.18 perf-profile.children.cycles-pp.balance_dirty_pages_ratelimited_flags
0.92 -0.1 0.84 perf-profile.children.cycles-pp.w_test
3.14 -0.1 3.06 perf-profile.children.cycles-pp.__vfs_getxattr
1.00 -0.1 0.92 perf-profile.children.cycles-pp.aa_file_perm
1.29 -0.1 1.22 perf-profile.children.cycles-pp.xas_descend
0.76 -0.1 0.70 perf-profile.children.cycles-pp.x64_sys_call
0.87 -0.1 0.80 perf-profile.children.cycles-pp.setattr_should_drop_suidgid
1.07 -0.1 1.01 perf-profile.children.cycles-pp.xattr_resolve_name
1.10 -0.1 1.04 perf-profile.children.cycles-pp.folio_wait_stable
1.05 -0.1 1.00 perf-profile.children.cycles-pp.folio_mapping
0.73 -0.1 0.67 perf-profile.children.cycles-pp.xas_start
0.93 -0.1 0.88 perf-profile.children.cycles-pp.folio_mark_dirty
0.50 -0.0 0.46 perf-profile.children.cycles-pp.entry_SYSCALL_64_safe_stack
0.60 -0.0 0.56 perf-profile.children.cycles-pp.inode_to_bdi
0.43 -0.0 0.39 perf-profile.children.cycles-pp.write@plt
0.36 -0.0 0.33 perf-profile.children.cycles-pp.amd_clear_divider
0.37 -0.0 0.35 perf-profile.children.cycles-pp.__x64_sys_write
0.33 -0.0 0.31 perf-profile.children.cycles-pp.noop_dirty_folio
0.36 -0.0 0.34 perf-profile.children.cycles-pp.is_bad_inode
0.24 -0.0 0.23 ± 2% perf-profile.children.cycles-pp.file_remove_privs
1.18 +0.0 1.21 perf-profile.children.cycles-pp.strcmp
1.02 +0.1 1.08 perf-profile.children.cycles-pp.timestamp_truncate
99.01 +0.1 99.09 perf-profile.children.cycles-pp.write
0.98 ± 3% +0.1 1.06 perf-profile.children.cycles-pp.generic_write_check_limits
0.68 ± 2% +0.1 0.77 ± 6% perf-profile.children.cycles-pp.ktime_get_coarse_real_ts64
11.58 +0.1 11.69 perf-profile.children.cycles-pp.__generic_file_write_iter
2.36 ± 2% +0.1 2.50 perf-profile.children.cycles-pp.generic_write_checks
5.57 +0.2 5.75 perf-profile.children.cycles-pp.fault_in_readable
6.28 +0.2 6.49 perf-profile.children.cycles-pp.fault_in_iov_iter_readable
2.98 +0.4 3.33 perf-profile.children.cycles-pp.inode_needs_update_time
3.51 +0.4 3.89 perf-profile.children.cycles-pp.file_update_time
85.24 +1.1 86.31 perf-profile.children.cycles-pp.entry_SYSCALL_64_after_hwframe
84.05 +1.2 85.21 perf-profile.children.cycles-pp.do_syscall_64
79.32 +1.5 80.78 perf-profile.children.cycles-pp.ksys_write
75.49 +1.7 77.21 perf-profile.children.cycles-pp.vfs_write
3.64 +4.0 7.64 perf-profile.children.cycles-pp.__fsnotify_parent
5.68 +4.3 10.03 perf-profile.children.cycles-pp.rw_verify_area
6.96 -0.5 6.44 perf-profile.self.cycles-pp.copy_page_from_iter_atomic
6.52 -0.5 6.01 perf-profile.self.cycles-pp.write
6.92 -0.4 6.48 perf-profile.self.cycles-pp.vfs_write
3.59 -0.3 3.24 perf-profile.self.cycles-pp.filemap_get_entry
4.41 -0.3 4.09 perf-profile.self.cycles-pp.__filemap_get_folio
4.23 -0.3 3.95 perf-profile.self.cycles-pp.entry_SYSRETQ_unsafe_stack
2.79 -0.3 2.52 perf-profile.self.cycles-pp.simple_write_end
1.76 -0.2 1.52 perf-profile.self.cycles-pp.apparmor_file_permission
2.32 ± 2% -0.2 2.16 ± 2% perf-profile.self.cycles-pp.__fdget_pos
1.79 -0.2 1.62 perf-profile.self.cycles-pp.folio_unlock
2.05 -0.2 1.89 perf-profile.self.cycles-pp.down_write
2.35 -0.1 2.22 perf-profile.self.cycles-pp.__cond_resched
1.89 -0.1 1.77 perf-profile.self.cycles-pp.do_syscall_64
1.38 -0.1 1.26 perf-profile.self.cycles-pp.entry_SYSCALL_64
1.56 -0.1 1.45 perf-profile.self.cycles-pp.up_write
1.30 -0.1 1.19 perf-profile.self.cycles-pp.entry_SYSCALL_64_after_hwframe
1.42 -0.1 1.31 perf-profile.self.cycles-pp.rcu_all_qs
1.12 -0.1 1.02 perf-profile.self.cycles-pp.security_file_permission
1.46 -0.1 1.38 perf-profile.self.cycles-pp.ksys_write
0.90 -0.1 0.83 perf-profile.self.cycles-pp.aa_file_perm
1.29 -0.1 1.22 perf-profile.self.cycles-pp.xas_load
0.74 -0.1 0.67 perf-profile.self.cycles-pp.w_test
1.08 -0.1 1.01 perf-profile.self.cycles-pp.syscall_exit_to_user_mode
1.98 -0.1 1.92 perf-profile.self.cycles-pp.file_remove_privs_flags
1.30 -0.1 1.24 perf-profile.self.cycles-pp.__vfs_getxattr
1.06 -0.1 1.00 perf-profile.self.cycles-pp.xas_descend
0.80 -0.1 0.74 perf-profile.self.cycles-pp.balance_dirty_pages_ratelimited_flags
0.63 -0.1 0.58 perf-profile.self.cycles-pp.x64_sys_call
0.74 -0.1 0.69 perf-profile.self.cycles-pp.setattr_should_drop_suidgid
0.63 -0.0 0.58 perf-profile.self.cycles-pp.xas_start
0.87 -0.0 0.83 perf-profile.self.cycles-pp.folio_mapping
0.50 -0.0 0.46 perf-profile.self.cycles-pp.entry_SYSCALL_64_safe_stack
0.60 -0.0 0.57 perf-profile.self.cycles-pp.xattr_resolve_name
0.48 -0.0 0.44 perf-profile.self.cycles-pp.folio_mark_dirty
0.68 -0.0 0.65 perf-profile.self.cycles-pp.security_inode_need_killpriv
0.36 -0.0 0.33 ± 2% perf-profile.self.cycles-pp.inode_to_bdi
0.52 -0.0 0.49 perf-profile.self.cycles-pp.folio_wait_stable
0.34 -0.0 0.32 perf-profile.self.cycles-pp.cap_inode_need_killpriv
0.89 -0.0 0.87 perf-profile.self.cycles-pp.simple_write_begin
0.25 -0.0 0.23 perf-profile.self.cycles-pp.__x64_sys_write
0.23 ± 2% -0.0 0.22 ± 2% perf-profile.self.cycles-pp.amd_clear_divider
0.23 ± 2% -0.0 0.21 perf-profile.self.cycles-pp.noop_dirty_folio
0.12 ± 4% -0.0 0.10 ± 3% perf-profile.self.cycles-pp.write@plt
0.24 -0.0 0.23 ± 2% perf-profile.self.cycles-pp.is_bad_inode
0.62 +0.0 0.65 perf-profile.self.cycles-pp.file_update_time
0.86 +0.0 0.90 perf-profile.self.cycles-pp.strcmp
0.69 +0.0 0.74 perf-profile.self.cycles-pp.fault_in_iov_iter_readable
0.75 ± 3% +0.1 0.81 perf-profile.self.cycles-pp.generic_write_check_limits
1.42 ± 2% +0.1 1.48 perf-profile.self.cycles-pp.generic_write_checks
0.82 +0.1 0.89 perf-profile.self.cycles-pp.timestamp_truncate
0.58 ± 3% +0.1 0.66 ± 6% perf-profile.self.cycles-pp.ktime_get_coarse_real_ts64
5.44 +0.2 5.60 perf-profile.self.cycles-pp.fault_in_readable
1.36 +0.2 1.55 perf-profile.self.cycles-pp.inode_needs_update_time
1.76 ± 3% +0.9 2.64 perf-profile.self.cycles-pp.rw_verify_area
3.46 +3.8 7.25 perf-profile.self.cycles-pp.__fsnotify_parent
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://github.com/intel/lkp-tests/wiki
next reply other threads:[~2024-05-29 8:26 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-29 8:25 kernel test robot [this message]
2024-05-29 11:17 ` [amir73il:sb_write_barrier] [fanotify] 9d1fd61f1d: unixbench.throughput -7.9% regression Amir Goldstein
2024-05-31 3:15 ` Oliver Sang
2024-05-31 5:18 ` Amir Goldstein
2024-06-03 8:13 ` Oliver Sang
2024-06-04 12:33 ` Amir Goldstein
2024-07-01 7:42 ` Oliver Sang
2024-07-03 5:58 ` Amir Goldstein
2024-07-03 7:21 ` Oliver Sang
2024-07-03 16:20 ` Amir Goldstein
2024-07-04 15:39 ` Jan Kara
2024-07-05 2:09 ` Oliver Sang
2024-07-05 5:48 ` Amir Goldstein
2024-07-08 5:40 ` Oliver Sang
2024-07-08 16:37 ` Amir Goldstein
2024-07-25 13:41 ` Jan Kara
2024-07-25 14:04 ` Amir Goldstein
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