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Message-ID: <87eef2xrdd.ffs@nanos.tec.linutronix.de>
Date: Thu, 22 Apr 2021 17:37:18 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: Oliver Sang <oliver.sang@...el.com>
Cc: Peter Zijlstra <peterz@...radead.org>,
Oleg Nesterov <oleg@...hat.com>,
LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
lkp@...ts.01.org, lkp@...el.com, ying.huang@...el.com,
feng.tang@...el.com, zhengjun.xing@...el.com
Subject: Re: [signal] 4bad58ebc8: will-it-scale.per_thread_ops -3.3% regression
Oliver,
On Thu, Apr 22 2021 at 14:02, Oliver Sang wrote:
> On Tue, Apr 20, 2021 at 08:35:06PM +0200, Thomas Gleixner wrote:
>> Confused.
>
> FYI.
> we re-test this, and confirmed the regression persistent. still:
>
> 69995ebbb9d37173 4bad58ebc8bc4f20d89cff95417
> ---------------- ---------------------------
> %stddev %change %stddev
> \ | \
> 1.271e+09 -3.3% 1.229e+09 will-it-scale.192.threads
> 6620228 -3.3% 6401749 will-it-scale.per_thread_ops
> 1.271e+09 -3.3% 1.229e+09 will-it-scale.workload
I'll have a look.
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