Regarding NCQ

Regarding NCQ

Posted May 18, 2006 11:26 UTC (Thu) by danscox (subscriber, #4125)
Parent article: Big serial ATA changes

'Way back when, when Jens first introduced the first patchs for NCQ (26 May 2005) he said, "Results are pretty damn nice, I easily get 30-50% faster random io read performance without having to try hard." More recent results have been tried, but they weren't "random io". It'll very much depend on the disk usage. I'd expect that a desktop system won't see much difference, but a file server would.

Danny

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Regarding NCQ

Posted May 26, 2006 8:32 UTC (Fri) by anton (subscriber, #25547) [Link]

I would expect significantly improved write performance if write caching is turned off (as it should be for fsync to do what it is supposed to do).