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SubjectRe: "Cache" sched domains
Hello,

Peter Zijlstra, le Thu 16 Jun 2011 14:27:22 +0200, a écrit :
> On Thu, 2011-06-16 at 14:11 +0200, Samuel Thibault wrote:
> > ┌──────────────────────────────────────────────────────────────────┐
> > │Socket P#1 │
> > │┌────────────────────────────────────────────────────────────────┐│
> > ││L3 (16MB) ││
> > │└────────────────────────────────────────────────────────────────┘│
> > │┌────────────────────┐┌────────────────────┐┌────────────────────┐│
> > ││L2 (3072KB) ││L2 (3072KB) ││L2 (3072KB) ││
> > │└────────────────────┘└────────────────────┘└────────────────────┘│
> > │┌─────────┐┌─────────┐┌─────────┐┌─────────┐┌─────────┐┌─────────┐│
> > ││L1 (32KB)││L1 (32KB)││L1 (32KB)││L1 (32KB)││L1 (32KB)││L1 (32KB)││
> > │└─────────┘└─────────┘└─────────┘└─────────┘└─────────┘└─────────┘│
> > │┌─────────┐┌─────────┐┌─────────┐┌─────────┐┌─────────┐┌─────────┐│
> > ││Core P#0 ││Core P#1 ││Core P#2 ││Core P#3 ││Core P#4 ││Core P#5 ││
> > ││┌───────┐││┌───────┐││┌───────┐││┌───────┐││┌───────┐││┌───────┐││
> > │││PU P#0 ││││PU P#4 ││││PU P#8 ││││PU P#12││││PU P#16││││PU P#20│││
> > ││└───────┘││└───────┘││└───────┘││└───────┘││└───────┘││└───────┘││
> > │└─────────┘└─────────┘└─────────┘└─────────┘└─────────┘└─────────┘│
> > └──────────────────────────────────────────────────────────────────┘
>
> Pretty, bonus points for effort there.

Well, that's all hwloc's credit :)

> So the current goal is to change sched_domain_topology to not be such a
> silly hard coded list of domains, but build that thing dynamically based
> on the system topology and set all the SD_flags correctly.

Ok, great!

> If that is something you're willing to work on, that'd be totally
> awesome.

I'm afraid I do not have time to spend on this.

Samuel
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