Messages in this thread | | | Date | Sun, 07 May 2006 22:33:41 +1000 | From | Nick Piggin <> | Subject | Re: sched_clock() uses are broken |
| |
Mike Galbraith wrote: > On Wed, 2006-05-03 at 03:07 +1000, Nick Piggin wrote: > >>Other problem is that some people didn't RTFM and have started trying to >>use it for precise accounting :( > > > Are you talking about me perchance? I don't really care about precision > _that_ much, though I certainly do want to tighten timeslice accounting.
No, sched_clock is fine to be used in CPU scheduling choices, which are heuristic anyway (although strictly speaking, even using it for timeslicing within a single CPU could cause slight unfairness).
I'm talking about the update_cpu_clock() / task_struct->sched_time stuff.
-- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |