On Friday 06 October 2006 17:58, Paolo Ornati wrote:
> I used to have this type of problem and 2.6.19-rc1 looks much better
> than 2.6.18.
> I'm using CONFIG_PREEMPT + CONFIG_PREEMPT_BKL, CFQ i/o scheduler
> and /proc/sys/vm/swappiness = 20.
I will give 2.6.19 a test in a few weeks when the dust of all the changes have
settled a bit. :-)
As my Mike Galbraith suggested, I made some tests with renicing the IO
intensive applications. This indeed makes a hell of a difference. Currently I
am renicing everything that causes a lot of disk IO to a nice of 19. Even
though this doesn't fix it completely, the occasional short hangs have become
Unfortunately things have gotten a bit worse again since I switched my machine
over to a linux software RAID5 (3 sata disks attached to the nforce4 ultra)
even though I hoped quite the opposite would happen.
Have a nice weekend,
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