On Fri, Sep 08, 2006 at 05:08:52PM +0200, Raimund Jacob wrote: > Checking out a largish CVS module is no fun. The data is retrieved via > cvs pserver from the file server and written back via NFS into my home > directory. This process is sometimes pretty quick and sometimes blocks > in between as if the RAID controller has to think about the requests. I > know this phenomenon only from a megaraid controller, which we > eventuelly canned for a pure linux software raid (2 disks mirror). Also, > compiling in the nfs-mounted home directory is too slow - even on a > 1000Mbit link. > > The new fileserver therefor feels worse than the old one which served > the same purpose with FreeBSD/Symbios Logic SCSI RAID5/AMD K7. > > I try to find someone with some experience with this kind of problem. > Perhaps the other 3 users of an ICP controller. I wonder if this is > related to the aacraid driver. Or perhaps it's because of the 64-bit > thing. Does anyone have any guesses?
Try with a different IO scheduler. You probably have the anticipatory scheduler, you want to give the cfq scheduler a try. echo cfq > /sys/block/[device]/queue/scheduler For NFS, you also want to increase the number of daemons. Put the line RPCNFSDCOUNT=32 in /etc/default/nfs-kernel-server . Erik -- +-- Erik Mouw -- www.harddisk-recovery.com -- +31 70 370 12 90 -- | Lab address: Delftechpark 26, 2628 XH, Delft, The Netherlands -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]