lkml.org 
[lkml]   [2022]   [Mar]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [xfs] 6191cf3ad5: stress-ng.rename.ops_per_sec -73.5% regression
From
Hi,

On 2022/1/31 23:49, kernel test robot wrote:
> 0.00 +59.8 59.78 perf-profile.calltrace.cycles-pp.osq_lock.__mutex_lock.flush_workqueue.xfs_fs_statfs.statfs_by_dentry
> 23.44 ± 2% +61.0 84.49 perf-profile.calltrace.cycles-pp.vfs_statfs.user_statfs.__do_sys_statfs.do_syscall_64.entry_SYSCALL_64_after_hwframe
> 23.40 ± 2% +61.1 84.47 perf-profile.calltrace.cycles-pp.statfs_by_dentry.vfs_statfs.user_statfs.__do_sys_statfs.do_syscall_64

We did further check of the perf data. From above three lines,
the patch brought higher lock content (+59.8) in this extreme cases.

Regarding the patch could fix race issue, we will not tracking this
report. Let us know if you have any comments. Thanks.


Regards
Yin, Fengwei

\
 
 \ /
  Last update: 2022-03-02 09:33    [W:0.034 / U:0.208 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site