Hi Bill, On Mon, 04 Sep 2006 12:42:53 -0400 Bill Davidsen <davidsen@xxxxxxx> wrote: > > > > Mark Smith wrote: > > >Just a note, I've noticed this problem too. I run a RAID1 check once > >every 24 hours, and while developing the script to do it, noticed that > >the machine became virtually unusable - mouse was jumpy, typing lagged. > > > >I run this check every morning at 4.00am so I'm usually asleep and > >don't notice it, so it hasn't been a big bother to me. > > > > > Interesting, but do you run other stuff at that time? Several > distributions run various things in the middle of the night which really > bog the machine. > Pretty sure not. daily cron run at 12.00am, I run a daily smart short test at 2.00am, and then this check at 4.00 am. I'll switch it off tonight just to confirm that, by looking at the same sar data. I think I read on the list that Neil discovered something that he thinks might be causing it, I figured I just might be able to provide some data to help confirm that. Regards, Mark. -- "Sheep are slow and tasty, and therefore must remain constantly alert." - Bruce Schneier, "Beyond Fear" - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html