Messages in this thread | | | Subject | Re: [PATCH v2 0/4] sched/fair: Active balancer RT/DL preemption fix | From | Valentin Schneider <> | Date | Tue, 1 Oct 2019 15:15:28 +0100 |
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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 >
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