linux-kernel - Re: [PATCH 0/2] sched/fair: Improve cost accounting of newidle

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Message-ID: <82a781785fd7933d5fa0317de4ba6fe6081c7be0.camel@linux.intel.com>
Date:   Mon, 04 Oct 2021 16:06:58 -0700
From:   Tim Chen <tim.c.chen@...ux.intel.com>
To:     Vincent Guittot <vincent.guittot@...aro.org>, mingo@...hat.com,
        peterz@...radead.org, juri.lelli@...hat.com,
        dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com,
        mgorman@...e.de, bristot@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] sched/fair: Improve cost accounting of
 newidle_balance

On Mon, 2021-10-04 at 19:14 +0200, Vincent Guittot wrote:
> Improve the precision of the cost of newidle_balance by taking into
> account
> the time spent in updating blocked load and skipping load balance
> loop 
> entirely if there is no chance to run at least one.
> 

Thanks Vincent.

I'll ask our benchmark team to give it a spin.  They've been fairly
busy. I hope to get some bandwidth from them in next couple of
weeks.

Tim

> Vincent Guittot (2):
>   sched/fair: account update_blocked_averages in newidle_balance cost
>   sched/fair: Skip update_blocked_averages if we are defering load
>     balance
> 
>  kernel/sched/fair.c | 16 +++++++++++-----
>  1 file changed, 11 insertions(+), 5 deletions(-)
>