Re: Preempt? (was Re: Cannot enable DMA on SATA drive (SCSI-libsata,VIA SATA))

[Jeff Garzik]

Andrea Arcangeli wrote:
> So I disagree with your claim that preempt risks to hide inefficient
> code, there are many other (probably easier) ways to detect inefficient
> code than to check the latencies.


You're ignoring the argument :)

If users and developers are presented with the _impression_ that long 
latency code paths don't exist, then nobody is motivated to profile them 
(with any tool), much less fix them.

	Jeff


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