linux-kernel - Re: [PATCH v3] sched/deadline: Change the time to replenish runtime for sleep tasks

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Date:   Wed, 1 Mar 2017 21:09:39 +0900
From:   Byungchul Park <byungchul.park@....com>
To:     Juri Lelli <juri.lelli@....com>
CC:     <peterz@...radead.org>, <mingo@...nel.org>,
        <linux-kernel@...r.kernel.org>, <juri.lelli@...il.com>,
        <rostedt@...dmis.org>, <kernel-team@....com>
Subject: Re: [PATCH v3] sched/deadline: Change the time to replenish runtime
 for sleep tasks

On Wed, Mar 01, 2017 at 09:59:33AM +0000, Juri Lelli wrote:
> I'd err on the side of clearness and safety (where I assume the current
> code is safer only because it has been tested for a while :). However,
> if you can prove in a reproducible manner that the changes you are
> proposing make overhead way smaller, we might still consider them.

Then.. I will check how much it reduces the overhead.

> Anyway, IMVHO, there are still lot of known issues and missing features
> that deserve time; so, if your have some time to look at DEADLINE stuff,
> I'd kindly point you at
> 
> https://github.com/jlelli/sched-deadline/wiki/TODOs
> 
> You would be very welcome if you think you can pick something of what
> above up, and we should synchronize in that case, as several people are
> already working on some of the aforementioned bits.

Why not? I would be very honored if I can work together.

To be honest with you, I'm currently developing another patch set about
task migration in dl/rt. I will let you know after making it clear.

Unfortunately I have little time until 19th Mar, so I can do my work and
your TODOs after the day. I will continue the works after the day. :)

Thank you very much,
Byungchul