linux-kernel - Re: [perf x86] b77491648e: will-it-scale.per_process

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Message-ID: <87tv44danp.fsf@linux.intel.com>
Date:   Wed, 05 Feb 2020 12:47:06 -0800
From:   Andi Kleen <ak@...ux.intel.com>
To:     kernel test robot <rong.a.chen@...el.com>
Cc:     Roman Sudarikov <roman.sudarikov@...ux.intel.com>,
        0day robot <lkp@...el.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Alexander Antonov <alexander.antonov@...el.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org
Subject: Re: [perf x86] b77491648e: will-it-scale.per_process_ops -2.1% regression

kernel test robot <rong.a.chen@...el.com> writes:

> Greeting,
>
> FYI, we noticed a -2.1% regression of will-it-scale.per_process_ops due to commit:
>
>
> commit: b77491648e6eb2f26b6edf5eaea859adc17f4dcc ("perf x86: Infrastructure for exposing an Uncore unit to PMON mapping")
> https://github.com/0day-ci/linux/commits/roman-sudarikov-linux-intel-com/perf-x86-Exposing-IO-stack-to-IO-PMON-mapping-through-sysfs/20200118-075508

Seems to be spurious bisect. I don't think that commit could change
anything performance related.

-Andi