linux-kernel - Re: [RFC PATCH 3/4] sched/topology: remove smt

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Message-ID: <477033c2-87e5-0b7e-4263-a8d2e336e050@arm.com>
Date:   Mon, 10 Sep 2018 12:23:47 +0100
From:   Qais Yousef <qais.yousef@....com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Vincent Guittot <vincent.guittot@...aro.org>, mingo@...hat.com,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 3/4] sched/topology: remove smt_gain

On 07/09/18 13:42, Peter Zijlstra wrote:
> 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.


OK thanks for the info. I think that was 10 years ago? With all the code 
moves and renaming git log -L was getting more difficult to use as I dug 
deeper in history :p

Is this work officially dead then? If yes, it ended up not being useful 
or just never got around finishing it?

Thanks

-- 
Qais Yousef