[ltp] Renice disk ?

Charles E. "Rick" Taylor, IV linux-thinkpad@linux-thinkpad.org
Wed, 17 Aug 2005 11:39:23 -0400


On Wed, 2005-08-17 at 15:51 +0100, Richard wrote:

> These programs run at 
> nice level 20, taking the lowest level priority on the CPU. However, 
> because they require lots of disk access, they make other programs that 
> need to use the disk very unresponsive (eg starting bash, running su, 
> opening files).

> Given that the system is disk-bound rather than CPU-bound, what should I 
> do about this? Google appears to have no advice.

First thing I'd check is your hdparm settings.  Last time I had a
problem like the one you describe, DMA and unmaskirq were disabled.

-- 
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*  Charles E. "Rick" Taylor, IV <tomalek@mindspring.com>
*  Chemistry instructor / Mad scientist / Linux enthusiast!
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*  Web: http://home.mindspring.com/~charletiv/
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