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Re: Load shoots very high with disk activity

Danie Roux wrote:

Using XFS, and kernel 2.6.8.

In the past two weeks I noticed that my PC load shoots up on anything that
needs disk activity. The CPU's are quiet during all this:

I/O contributes to load average. Nothing startling there.

top - 17:04:09 up  6:07,  3 users,  load average: 2.25, 1.88, 1.37
Cpu0  : 10.3% us,  4.0% sy,  0.0% ni, 76.3% id,  8.7% wa,  0.7% hi,  0.0%
Cpu1  : 11.3% us,  3.3% sy,  0.0% ni, 70.4% id, 15.0% wa,  0.0% hi,  0.0%

It gets so bad that the mouse starts jerking!

Does anyone have some advice on where to start looking for optimizing?

(hdparm -t looks fine)

Could be the disk I/O is excessive swapping. Add RAM to fix.
Maybe DMA is off? Check with hdparm.



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