Re: 2.6.0-test9 /-mm3 SATA siimage - bad disk performance

[Prakash K. Cheemplavam]

Marcus Hartig wrote:

> Hello all,
>
> with the Fedora 1 kernel 2.4.22-1.2115.nptl I get with hdparm -t
> (Timing buffered disk reads) 34 MB/sec. Its very slow for this drive.
>
> With 2.6.0-test9 and -mm3 I get around "62 MB in 3.05 = 20,31". Wow"
> Back to ~1998?

I have a similar problem: With 2.4.22-ac3 I had 37mb/sec with my Samsung 
HD and 49MB/sec with IBM/Hitachi, now with 2.6 (all I tried, including 
test9-mm2) I had only 20mb/sec for Samsung and about 39mb/sec for the 
IBM. Motherboard is Abit NF7-S Rev2.0, as well, so same situation with 
the siimage 1.06 driver. I wanted to run some dd tests as well, but it 
is a real performance hit. Playing with readahead or other hdparm 
options didn't help either.

Prakash

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