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Topic: Problems with DSL 1.0.1, Bugs?

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cbagger01

Group: Members
Posts: 4264
Joined: Oct. 2003

Posted: May 01 2005,15:08

If you are getting slow IO performance, you probably don't have dma enabled.

You can either boot with:

dsl dma

or after bootup type:

sudo hdparm -d 1 /dev/hda

where hda is the device name for the desired hard drive.

123456789

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Posts: 3
Joined: April 2005

Posted: May 02 2005,16:47

Quote (cbagger01 @ May 01 2005,11:08)

Thanks for the info, i assumed DMA is default!
What about CPU running at 99% when performing dd?

cbagger01

Group: Members
Posts: 4264
Joined: Oct. 2003

Posted: May 02 2005,16:53

If you have dma turned OFF, then your CPU will spike. I don't know of other reasons.

123456789

Group: Members
Posts: 3
Joined: April 2005

Posted: May 05 2005,13:13

Quote (cbagger01 @ May 02 2005,12:53)

If you have dma turned OFF, then your CPU will spike. I don't know of other reasons.

Unfortunately still CPU at 99% although having booted with dsl dma option and still not able to shutdown the PC...thanx for the help however!

13 replies since April 21 2005,16:01

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