[NTLUG:Discuss] Disk I/O timings.
Rev. wRy
slot0k at pogox.org
Wed Dec 5 10:03:14 CST 2001
Dan Carlson wrote:
> If you haven't already done so, use hdparm to optimize your drives
> performance by enabling 32-bit I/O (-c1) and DMA (-d1), if your controllers
> and drives support them. I've noticed that many distributions either do
> nothing in this regard, or they don't get it right, so it's well worth
> looking into yourself. You can use the -X option to force a drive into a
> particular DMA mode.
Keywords being "if your controllers and drives support them". hdparm is a
great tool, but it *can* screw up your partitions in a big way (like
corrupting inodes, system lockups, etc).
http://www.oreillynet.com/pub/a/272
http://www.linuxjournal.com/article.php?sid=5308
are links to two decent articles about the magic that is hdparm. :)
> Dan Carlson
Ry
(who had big prollems with an older ALI chipset and hdparm)
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