RE: fair group scheduler not so fair?

From: Li, Tong N
Date: Thu May 22 2008 - 16:19:33 EST


Peter,

I didn't look at your patches, but I thought you were flattening group
weights down to task-level so that the scheduler only looks at per-task
weights. That'd make group fairness as good as task fairness gets. Is
this still the case?

tong

>-----Original Message-----
>From: linux-kernel-owner@xxxxxxxxxxxxxxx [mailto:linux-kernel-
>owner@xxxxxxxxxxxxxxx] On Behalf Of Peter Zijlstra
>Sent: Thursday, May 22, 2008 1:08 PM
>To: Chris Friesen
>Cc: linux-kernel@xxxxxxxxxxxxxxx; vatsa@xxxxxxxxxxxxxxxxxx;
mingo@xxxxxxx;
>pj@xxxxxxx
>Subject: Re: fair group scheduler not so fair?
>
>On Thu, 2008-05-22 at 14:02 -0600, Chris Friesen wrote:
>
>> I haven't really dug into the scheduler yet (although that's next),
but
>> based on these results it doesn't really look like the load balancer
is
>> properly group-aware.
>
>I'm trying, but its turning out to be rather more difficult than
>expected. Any help here would be much appreciated.
>
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