Re: JMicron 20360/20363 AHCI Controller much slower with 2.6.18

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Andrew Lyon wrote:
Hi,

I have a Gigabyte GA_965P_DS3 with Core 2 Duo CPU, wd raptor connected
to onboard JMicron 20360/20363 AHCI Controller, with 2.6.18 the drive
is very slow:

beast ~ # uname -a
Linux beast 2.6.18 #1 SMP Wed Sep 20 15:04:24 BST 2006 i686 Intel(R) Core(TM)2 C
PU          6600  @ 2.40GHz GNU/Linux
beast ~ # hdparm -t /dev/sda

/dev/sda:
Timing buffered disk reads:  100 MB in  3.02 seconds =  33.10 MB/sec

Which IO scheduler are you using? If you're using anticipatory or cfq, can you try deadline?

Thanks.

--
tejun
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