Messages in this thread | | | Date | Wed, 27 Feb 2008 18:05:28 +0100 | From | Andre Noll <> | Subject | Re: Performance problems with 3ware 9500S-4LP and 2.6.25-rc3 |
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On 09:26, Tony Battersby wrote: > > Thanks, this helped a lot. However, there does not seem to be a way > > to make the system more responsive, which is really the problem we > > are experiencing. > > > > Andre > > > This is not 3ware-specific, but kernel 2.6.24 has new per-device write > throttling that might help with the responsiveness issue: > > http://kernelnewbies.org/LinuxChanges#head-92340ffcec39e7c2a09fd933243fb18eda57f1b4 > http://lwn.net/Articles/245600/
Yes, but we tried both 2.6.24 and 2.6.25-rc, so Peter's new write-throttling code doesn't seem to help much in our situtation. I'll play a bit with the various /proc/sys/vm/* knobs to see if that makes the system more responsive.
> Also, check to see if the 3ware controller has a background initialize > or verify in progress, since that will obviously slow things down until > it is complete.
That's certainly not the case.
Thanks Andre -- The only person who always got his work done by Friday was Robinson Crusoe [unhandled content-type:application/pgp-signature] | |