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Date:   Sun, 27 Oct 2019 09:32:50 -0700
From:   Andi Kleen <andi@firstfloor.org>
To:     kernel test robot <rong.a.chen@intel.com>
Cc:     Peter Zijlstra <peterz@infradead.org>, mingo@kernel.org,
        linux-kernel@vger.kernel.org, acme@kernel.org,
        mark.rutland@arm.com, alexander.shishkin@linux.intel.com,
        jolsa@redhat.com, namhyung@kernel.org, andi@firstfloor.org,
        kan.liang@linux.intel.com, lkp@lists.01.org
Subject: Re: [perf]  06e0dbcfd3:  phoronix-test-suite.mbw.0.mib_s 12.6%
 improvement
Message-ID: <20191027163248.nv63uybzjstoigj5@two.firstfloor.org>
References: <20191022092307.425783389@infradead.org>
 <20191027051812.GJ29418@shao2-debian>
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On Sun, Oct 27, 2019 at 01:18:12PM +0800, kernel test robot wrote:
> Greeting,
> 
> FYI, we noticed a 12.6% improvement of phoronix-test-suite.mbw.0.mib_s due to commit:

Wow! Sadly it's a false positive, from lowering perf overhead, instead
of improving the workload. Still seems like a good thing.

Note that there is a perf user tool change coming soon that will likely
improve it even more (using affiity to optimize all perf IPIs).

-Andi