Messages in this thread | | | Date | Thu, 23 Jun 2011 12:44:55 +0200 | From | Ingo Molnar <> | Subject | Re: [patch 4/4] sched: Distangle worker accounting from rq->lock |
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* Tejun Heo <tj@kernel.org> wrote:
> The patch description is simply untrue. It does affect how wq > behaves under heavy CPU load. The effect might be perfectly okay > but more likely it will result in subtle suboptimal behaviors under > certain load situations which would be difficult to characterize > and track down. Again, the trade off (mostly killing of > ttwu_local) could be okay but you can't get away with just claiming > "there's no harm".
Well, either it can be measured or not. If you can suggest a specific testing method to Thomas, please do.
Thanks,
Ingo
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