From: Giovanni Gherdovich <ggherdovich@suse.cz>
To: Peter Zijlstra <peterz@infradead.org>,
Michael Larabel <Michael@phoronix.com>
Cc: Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@redhat.com>,
"Rafael J . Wysocki" <rjw@rjwysocki.net>,
Viresh Kumar <viresh.kumar@linaro.org>,
Jon Grimm <Jon.Grimm@amd.com>,
Nathan Fontenot <Nathan.Fontenot@amd.com>,
Yazen Ghannam <Yazen.Ghannam@amd.com>,
Thomas Lendacky <Thomas.Lendacky@amd.com>,
Suthikulpanit Suravee <Suravee.Suthikulpanit@amd.com>,
Mel Gorman <mgorman@techsingularity.net>, Pu Wen <puwen@hygon.cn>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
x86@kernel.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org
Subject: Re: [PATCH v2 0/1] AMD EPYC: fix schedutil perf regression (freq-invariance)
Date: Tue, 26 Jan 2021 10:01:00 +0100 [thread overview]
Message-ID: <1611651660.11983.64.camel@suse.cz> (raw)
In-Reply-To: <YA6CqYcaEhUoyJdH@hirez.programming.kicks-ass.net>
On Mon, 2021-01-25 at 09:34 +0100, Peter Zijlstra wrote:
> On Sun, Jan 24, 2021 at 04:30:57PM -0600, Michael Larabel wrote:
> > From ongoing tests of this patch, it still certainly shows to address most
> > of the Linux 5.11 performance regression previously encountered when using
> > Schedutil. Additionally, for a number of workloads where not seeing a
> > regression from 5.10 to 5.11 Git is still showing even better performance
> > with this patch. The power monitoring on the AMD EPYC server is showing
> > higher power spikes but the average power consumption rate is roughly
> > comparable to that of Linux 5.11 Git, which is higher than 5.10 by just
> > about 3%.
> >
> > So this patch still seems to be working out well and indeed taking care of
> > some wide losses seen otherwise on Linux 5.11 when using Schedutil on AMD
> > Zen2/Zen3. Still have some other tests running but so far no unexpected
> > results.
> >
>
> Did you do all this writing and forget to add:
>
> Tested-by: Michael Larabel <Michael@phoronix.com>
>
> ?
Michael confirmed me off-list that yes, the patch should carry the
"Tested-by" tag with his name.
Giovanni
prev parent reply other threads:[~2021-01-26 9:03 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-22 20:40 [PATCH v2 0/1] AMD EPYC: fix schedutil perf regression (freq-invariance) Giovanni Gherdovich
2021-01-22 20:40 ` [PATCH v2 1/1] x86,sched: On AMD EPYC set freq_max = max_boost in schedutil invariant formula Giovanni Gherdovich
2021-01-25 10:04 ` Peter Zijlstra
2021-01-26 9:28 ` Giovanni Gherdovich
2021-01-26 10:02 ` Peter Zijlstra
2021-02-02 18:45 ` Rafael J. Wysocki
2021-02-02 19:11 ` Rafael J. Wysocki
2021-02-03 9:56 ` Giovanni Gherdovich
2021-02-02 18:40 ` Rafael J. Wysocki
2021-01-25 10:06 ` Peter Zijlstra
2021-01-26 9:09 ` Giovanni Gherdovich
2021-01-26 9:31 ` Mel Gorman
2021-01-26 10:05 ` Peter Zijlstra
[not found] ` <1611933781.15858.48.camel@suse.cz>
2021-02-02 14:17 ` Giovanni Gherdovich
2021-02-02 18:21 ` Peter Zijlstra
2021-02-02 18:29 ` Rafael J. Wysocki
2021-02-02 19:00 ` Rafael J. Wysocki
2021-02-02 18:59 ` Rafael J. Wysocki
2021-02-02 19:26 ` Rafael J. Wysocki
2021-02-03 8:39 ` Giovanni Gherdovich
2021-02-03 13:40 ` Rafael J. Wysocki
2021-02-03 9:12 ` Giovanni Gherdovich
2021-02-03 6:04 ` Viresh Kumar
2021-01-24 22:30 ` [PATCH v2 0/1] AMD EPYC: fix schedutil perf regression (freq-invariance) Michael Larabel
2021-01-25 8:34 ` Peter Zijlstra
2021-01-26 9:01 ` Giovanni Gherdovich [this message]
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