Re: [PATCH 6/6] numa,sched: normalize faults_from stats and weighby CPU use

From: Rik van Riel
Date: Fri Jan 17 2014 - 09:53:21 EST


On 01/17/2014 04:54 AM, Peter Zijlstra wrote:
> On Fri, Jan 17, 2014 at 01:17:36AM -0500, riel@xxxxxxxxxx wrote:
>> + /*
>> + * Normalize the faults_from, so all tasks in a group
>> + * count according to CPU use, instead of by the raw
>> + * number of faults. This prevents the situation where
>> + * the garbage collector totally dominates the stats,
>> + * and the access patterns of the worker threads are
>> + * ignored.
>> + */
>
> Instead of focusing on the one example (GC) here, I would suggest
> saying something along the lines of: Tasks with little runtime have
> little over-all impact on throughput and thus their faults are less
> important.

Thanks for the review, I have updated the comment
accordingly.

Does anybody else have comments on this series, or should
I start begging for Acked-by: and Reviewed-by: lines? :)

--
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/