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From: Peter Zijlstra <peterz@infradead.org>
To: Qais Yousef <qais.yousef@arm.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>,
	mingo@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 3/4] sched/topology: remove smt_gain
Date: Fri, 7 Sep 2018 14:42:52 +0200	[thread overview]
Message-ID: <20180907124252.GM24082@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <ca95124f-db09-c38f-d96a-5240bfe8c024@arm.com>

On Wed, Aug 29, 2018 at 03:08:38PM +0100, Qais Yousef wrote:
> It was hard to track the history of this and *why* it's needed.

Yeah, my bad..

So at some point I wanted to do dynamic capacity and dynamic smt gain by
using the x86 APERF/MPERF stuff. But it never quite worked and we got
stuck with the remnants.

  parent reply	other threads:[~2018-09-07 12:43 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-29 13:19 [PATCH 0/4] sched/numa: remove unused code Vincent Guittot
2018-08-29 13:19 ` [PATCH 1/4] sched/numa: remove unused code from update_numa_stats() Vincent Guittot
2018-09-04  6:39   ` Srikar Dronamraju
2018-09-10 10:19   ` [tip:sched/core] sched/numa: Remove " tip-bot for Vincent Guittot
2018-08-29 13:19 ` [PATCH 2/4] sched/numa: remove unused nr_running field Vincent Guittot
2018-09-04  6:40   ` Srikar Dronamraju
2018-09-10 10:20   ` [tip:sched/core] sched/numa: Remove unused numa_stats::nr_running field tip-bot for Vincent Guittot
2018-08-29 13:19 ` [RFC PATCH 3/4] sched/topology: remove smt_gain Vincent Guittot
2018-08-29 14:08   ` Qais Yousef
2018-08-29 14:42     ` Vincent Guittot
2018-09-07 12:42     ` Peter Zijlstra [this message]
2018-09-10 11:23       ` Qais Yousef
2018-09-04  8:24   ` Srikar Dronamraju
2018-09-04  9:36     ` Vincent Guittot
2018-09-04 10:37       ` Srikar Dronamraju
2018-09-05  7:36         ` Vincent Guittot
2018-09-05  8:50           ` Srikar Dronamraju
2018-09-05  9:11             ` Vincent Guittot
2018-09-05 11:14               ` Srikar Dronamraju
2018-09-06  9:21                 ` Vincent Guittot
2018-09-10 11:05         ` Qais Yousef
2018-09-10 10:07       ` [tip:sched/core] sched/fair: Fix scale_rt_capacity() for SMT tip-bot for Vincent Guittot
2018-12-11 15:31   ` [tip:sched/core] sched/topology: Remove the ::smt_gain field from 'struct sched_domain' tip-bot for Vincent Guittot
2018-08-29 13:19 ` [RFC PATCH 4/4] sched/topology: remove unused sd param from arch_scale_cpu_capacity() Vincent Guittot

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