lkml.org 
[lkml]   [2019]   [Oct]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2 0/4] sched/fair: Active balancer RT/DL preemption fix
From
Date
Hi Juri,

On 01/10/2019 14:31, Juri Lelli wrote:
> Hi Valentin,
>
> On 01/10/19 11:29, Valentin Schneider wrote:
>> (expanded the Cc list)
>> RT/DL folks, any thought on the thing?
>
> Even if I like your idea and it looks theoretically the right thing to
> do, I'm not sure we want it in practice if it adds complexity to CFS.
>
> I personally never noticed this kind of interference from CFS, but, at
> the same time, for RT we usually like more to be safe than sorry.
> However, since this doesn't seem to be bullet-proof (as you also say), I
> guess it all boils down again to complexity vs. practical benefits.
>

Thanks for having a look.

IMO worst part is the local detach_one_task() thing, I added that after v1
following Qais' comments but perhaps it doesn't gain us much.

I'll try to cook something up with rt-app and see if I can get sensible
numbers.

> Best,
>
> Juri
>

\
 
 \ /
  Last update: 2019-10-01 16:16    [W:0.056 / U:0.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site