Re: [RFC][PATCH 25/26] sched, numa: Only migrate long-running entities

[Rik van Riel]

On 07/09/2012 08:26 AM, Peter Zijlstra wrote:
> On Sun, 2012-07-08 at 14:34 -0400, Rik van Riel wrote:

> > Do we really want to calculate the amount of CPU time used
> > by a process, and start migrating after just one second?
> >
> > Or would it be ok to start migrating once a process has
> > been scanned once or twice by the NUMA code?
>
> You mean, the 2-3rd time we try and migrate this task, not the memory
> scanning thing as per Andrea, right?

Indeed.  That way we can simply keep a flag somewhere,
instead of iterating over the threads in a process.

--
All rights reversed
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/