On 2020/06/18 9:51, kernel test robot wrote:
> FYI, we noticed a -84.7% regression of stress-ng.tee.ops_per_sec due to
> commit:
>
>
> commit: 566d136289dc57816ac290de87a9a0f7d9bd3cbb ("pipe: Fix pipe_full() test
> in opipe_prep().")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
This would be because the test case shows higher performance if the pipe writer
does busy wait.
This commit fixed an unkillable busy wait bug when the pipe reader does not try
to read.
> If you fix the issue, kindly add following tag
> Reported-by: kernel test robot <rong.a.c...@intel.com>
We can't fix the issue. ;-)
