Messages in this thread | | | Date | Tue, 13 Jul 2004 06:04:48 -0700 | From | William Lee Irwin III <> | Subject | Re: preempt-timing-2.6.8-rc1 |
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William Lee Irwin III wrote: >> AFAICT this is nothing more than rounding up.
On Tue, Jul 13, 2004 at 10:57:54PM +1000, Nick Piggin wrote: > But you want to round down by definition of preempt_thresh, don't you? > preempt_thresh = 1ms = 1000000us > ie. warn me if the lock hold goes _to or above_ 1000000us
The semantics I implemented are warning for strictly above the preempt_thresh. Whether those semantics are ideal is irrelevant; it's faithful to those semantics. Given that people are asking for sub- millisecond latencies, maybe I should increase the precision.
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