>>>>> On Wed, 19 Nov 2003 20:09:15 -0800, "John Hawkes" <hawkes@sgi.com> said: John> I'd like to hear an argument about why sched_clock() needs John> sub-microsecond accuracy, instead of just using jiffies, when John> one use of sched_clock() is to compare a delta time against John> cache_decay_ticks, which is a "jiffies"-granularity value, and John> the other use is to determine the relative John> computebound-vs-interactive characteristics of the process. It's probably best to discuss this on lkml. I didn't follow all the recent scheduler developments but AFAIK, this is largely driven by trying to fix some scheduling corners. I think the "persistent starvation" bug that Stephane found gets fixed by it, for example. Also, supposedly it helps interactivity. --david - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.htmlReceived on Thu Nov 20 01:02:19 2003
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