From: Schspa Shi <schspa@gmail.com>
To: kernel test robot <oliver.sang@intel.com>
Cc: 0day robot <lkp@intel.com>, LKML <linux-kernel@vger.kernel.org>,
lkp@lists.01.org, ying.huang@intel.com, feng.tang@intel.com,
zhengjun.xing@linux.intel.com, fengwei.yin@intel.com,
guobing.chen@intel.com, ming.a.chen@intel.com,
frank.du@intel.com, Shuhua.Fan@intel.com, wangyang.guo@intel.com,
Wenhuan.Huang@intel.com, jessica.ji@intel.com,
shan.kang@intel.com, guangli.li@intel.com, tiejun.li@intel.com,
yu.ma@intel.com, dapeng1.mi@intel.com, jiebin.sun@intel.com,
gengxin.xie@intel.com, fan.zhao@intel.com, tj@kernel.org,
jiangshanlai@gmail.com
Subject: Re: [workqueue] 1a0a67f5ef: phoronix-test-suite.fio.SequentialRead.IO_uring.Yes.No.1MB.DefaultTestDirectory.mb_s -17.7% regression
Date: Wed, 13 Jul 2022 14:09:28 +0800 [thread overview]
Message-ID: <m2bkttms3w.fsf@gmail.com> (raw)
In-Reply-To: <Ys4zVkJCH04cnSGX@xsang-OptiPlex-9020>
kernel test robot <oliver.sang@intel.com> 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
next prev parent reply other threads:[~2022-07-13 6:42 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-07 9:05 [PATCH] workqueue: Use active mask for new worker when pool is DISASSOCIATED Schspa Shi
2022-07-13 2:52 ` [workqueue] 1a0a67f5ef: phoronix-test-suite.fio.SequentialRead.IO_uring.Yes.No.1MB.DefaultTestDirectory.mb_s -17.7% regression kernel test robot
2022-07-13 6:09 ` Schspa Shi [this message]
2022-07-13 9:52 ` [PATCH] workqueue: Use active mask for new worker when pool is DISASSOCIATED Lai Jiangshan
2022-07-13 11:22 ` Schspa Shi
2022-07-14 14:39 ` Peter Zijlstra
2022-07-14 15:17 ` Schspa Shi
2022-07-30 3:49 ` Schspa Shi
2022-08-01 3:56 ` Lai Jiangshan
2022-08-01 4:42 ` Schspa Shi
2022-08-01 8:48 ` Lai Jiangshan
2022-08-01 9:32 ` Schspa Shi
2022-08-07 13:52 ` Schspa Shi
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