Re: [workqueue] 1a0a67f5ef: phoronix-test-suite.fio.SequentialRead.IO_uring.Yes.No.1MB.DefaultTestDirectory.mb_s -17.7% regression

[Schspa Shi]

kernel test robot <oliver.sang@xxxxxxxxx> writes:

> Greeting,
>
> FYI, we noticed a -17.7% regression of phoronix-test-suite.fio.SequentialRead.IO_uring.Yes.No.1MB.DefaultTestDirectory.mb_s due to commit:
>

This performance drop can be fixed by convert to wq_pool_attach_mutex
to a rwsem, or add another lock for this. I will upload a new PATCH
version for this.

-- 
BRs
Schspa Shi