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Date: Fri, 11 Nov 2016 12:46:37 -0600 (CST)
From: Christoph Lameter <cl@...ux.com>
To: Daniel Vacek <neelx.g@...il.com>
cc: Daniel Bristot de Oliveira <bristot@...hat.com>,
Tommaso Cucinotta <tommaso.cucinotta@...up.it>,
LKML <linux-kernel@...r.kernel.org>,
linux-rt-users <linux-rt-users@...r.kernel.org>,
Peter Zijlstra <peterz@...radead.org>,
Steven Rostedt <rostedt@...dmis.org>,
Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH] sched/rt: RT_RUNTIME_GREED sched feature
On Thu, 10 Nov 2016, Daniel Vacek wrote:
> I believe Daniel's patches are the best thing we can do in current
> situation as the behavior now seems rather buggy and does not provide above
> mentioned expectations set when rt throttling was merged with default
> budget of 95% of CPU time. Nor if you configure so that it does (by
> disabling RT_RUNTIME_SHARE), it also forces CPUs to go idle needlessly when
> there still can be rt task running not really starving anyone. At least
> till a proper rework of rt scheduling with DL Server is implemented.
This looks like a fix for a bug and the company I work for is suffering
as a result. Could we please merge that ASAP?
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