Messages in this thread | | | Date | Tue, 27 Apr 2004 11:38:33 -0400 | From | Timothy Miller <> | Subject | Re: IDE throughput in 2.6 - it's good! |
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Ken Moffat wrote:
> > So, despite the numbers shown by hdparm looking worse, when only one > user is doing anything the performance is actually improved. I've no > idea which changes have achieved this, but thanks to whoever were > involved.
I've done tests using dd to and from the raw block device under 2.4 and 2.6. Memory size (kernel boot param mem=) doesn't seem to affect performance, so I assume that means that dd to and from the raw block device is unbuffered. When I compare read and write speeds between 2.4 and 2.6, 2.6 is definately slower. The last 2.6 kernel I tried this with is 2.6.5.
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