> Here's a diff against base 2.4.20. It may be a little out of date
> wrt Andrea's latest but it should tell us if we're looking in the
> right place.
Ok, I did not run the complete 2.4.20aa1 kernel yet since I am not sure
if it is intended to be used, but I applied your patch, Andrew (thanks
for mailing it). It still does not fix the problem. One job doing much
I/O starts with about 80% CPU but then drops down to about 30% in the
first 40 seconds. Load goes from 0.00 to 2.4 within that time.
And I can see bdflush and my process marked with "D" in the process list.
Catting the device to /dev/null only made it worse :-(
Creating a 1GB file using dd takes about 1 minute compared to 16 seconds
without other jobs running.
Do you think it could be a ReiserFS problem on a RAID? Do you know of
anything else I could try? Sorry, but my knowledge doesn't reach that far.
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