Re: [RFC PATCH 2/3] sched: add yield_to function
From: Hillf Danton
Date: Sun Jan 02 2011 - 23:18:56 EST
On Mon, Jan 3, 2011 at 1:19 AM, Rik van Riel <riel@xxxxxxxxxx> wrote:
> On 01/02/2011 06:43 AM, Hillf Danton wrote:
>
>> The following work is based on what Rik posted, with a few changes.
>
> I threw out my patch before Christmas, replacing it with
> Mike Galbraith's work.
>
Would you please share the work by Mike, or info where to get it?
Hillf
> Today I finally discovered why I had not been getting
> very useful results testing the PLE code on the test
> system.
>
> On this particular CPU model (Intel(R) Xeon(R) CPU X5670),
> the value of ple_gap needs to be at least 48 !
>
> A ple_gap value of 41 is simply too low to trigger reliably
> with Avi's kvm-unit-tests PLE test and also only triggers
> a few times a second at most (not too useful) with the other
> tests I had been running...
>
> --
> All rights reversed
>
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