Re: [PATCH v2] sched: Fast idling of CPU when system is partially loaded

From: Andi Kleen
Date: Mon Jun 23 2014 - 12:22:55 EST


> So I don't get why we can't do the below; I think Jason tried to ask the
> same...

The important part for performance is to minimize the cache line transfers. Your
unconditional variant would cause more dirty cache lines than Tim's,
right?

-Andi
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