Hi,
When debugging some performance issue, i found that thousands of threads
exit around same time could cause a severe spin lock contention on proc
dentry "/proc/$parent_process_pid/task/", that's because threads needs
to clean up their pid file from that dir when exit. Check the following
s
On Thu, Jun 18, 2020 at 03:17:33PM -0700, Junxiao Bi wrote:
> When debugging some performance issue, i found that thousands of threads
> exit around same time could cause a severe spin lock contention on proc
> dentry "/proc/$parent_process_pid/task/", that's because threads needs to
> clean up the
Matthew Wilcox writes:
> On Thu, Jun 18, 2020 at 03:17:33PM -0700, Junxiao Bi wrote:
>> When debugging some performance issue, i found that thousands of threads
>> exit around same time could cause a severe spin lock contention on proc
>> dentry "/proc/$parent_process_pid/task/", that's because t
On 6/18/20 5:02 PM, ebied...@xmission.com wrote:
Matthew Wilcox writes:
On Thu, Jun 18, 2020 at 03:17:33PM -0700, Junxiao Bi wrote:
When debugging some performance issue, i found that thousands of threads
exit around same time could cause a severe spin lock contention on proc
dentry "/proc/$
Junxiao Bi writes:
> On 6/18/20 5:02 PM, ebied...@xmission.com wrote:
>
>> Matthew Wilcox writes:
>>
>>> On Thu, Jun 18, 2020 at 03:17:33PM -0700, Junxiao Bi wrote:
When debugging some performance issue, i found that thousands of threads
exit around same time could cause a severe spin
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