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Paa Paa wrote: >>> Q: What conclusion can I make on "hdparm -t" results or can I make >>> any conclusions? Do I really have lower performance with NCQ or not? >>> If I do, is this because of my HD or because of kernel?>>>> What IO scheduler are you using? If AS or CFQ, could you try with >> deadline?> > I was using CFQ. I now tried with Deadline and that doesn't seem to > degrade the performance at all! With Deadline I got 60MB/s both with and > without NCQ. This was with "hdparm -t".> > So what does this tell us?> It suggests that it's time to test with real load and see if deadline works well for you in the general case. -- Bill Davidsen <davidsen@tmr.com> "We have more to fear from the bungling of the incompetent than from the machinations of the wicked." - from Slashdot - 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/ | ||||||||||||
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