linux-kernel - Re: [sched/fair] 56498cfb04: netperf.Throughput

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Message-ID: <20210922143137.GT4323@worktop.programming.kicks-ass.net>
Date:   Wed, 22 Sep 2021 16:31:37 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Mel Gorman <mgorman@...hsingularity.net>
Cc:     kernel test robot <oliver.sang@...el.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@...ux.intel.com,
        aubrey.li@...ux.intel.com, yu.c.chen@...el.com
Subject: Re: [sched/fair]  56498cfb04:  netperf.Throughput_tps -5.4%
 regression

On Wed, Sep 22, 2021 at 02:42:47PM +0100, Mel Gorman wrote:
> For the LKP test, the nr_threads are 50% so I expect with two sockets,
> the machine is fully loaded and would be vulnerable to load-balancing
> artifacts as client and server threads move around. Hence, I ended up
> thinking that this result was likely a false positive.

Fair enough, lets ignore it for now then :-)