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Subject: Re: [PATCH 00/17] sched: EEVDF using latency-nice
From:   Mike Galbraith <efault@gmx.de>
To:     Hillf Danton <hdanton@sina.com>
Cc:     Peter Zijlstra <peterz@infradead.org>, mingo@kernel.org,
        vincent.guittot@linaro.org, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org, mgorman@suse.de, bristot@redhat.com,
        corbet@lwn.net, kprateek.nayak@amd.com, youssefesmat@chromium.org,
        joel@joelfernandes.org
Date:   Wed, 12 Apr 2023 06:05:34 +0200
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On Wed, 2023-04-12 at 10:50 +0800, Hillf Danton wrote:
> On Tue, 11 Apr 2023 16:56:24 +0200 Mike Galbraith <efault@gmx.de>
>
>
> The data from you and David (lat_nice: -12 throughput: -.9% to 0.25%) is
> supporting eevdf, given a optimization <5% could be safely ignored in ge=
neral
> (while 10% good and 20% standing ovation).
>

There's nothing pro or con here, David's testing seems to agree with my
own testing that a bit of adjustment may be necessary and that's it.
Cold hard numbers to developer, completely optional mitigation tweak to
fellow tester.. and we're done.

	-Mike