Messages in this thread | | | Subject | Re: Preempt? (was Re: Cannot enable DMA on SATA drive (SCSI-libsata, VIA SATA)) | From | Lee Revell <> | Date | Wed, 06 Oct 2004 00:05:00 -0400 |
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On Tue, 2004-10-05 at 23:59, Jeff Garzik wrote: > The moral of the story is not to use preempt, as it > * potentially hides long latency code paths > * potentially introduces bugs, as we've seen with net stack and many > other pieces of code > * is simply not needed, if all code paths are fixed
That's a pretty big if. If you require low latency now as opposed to Real Soon Now then preempt is the only option.
Lee
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