On Mon, 28 Feb 2005 10:01:23 -0800, Mark Knecht <[EMAIL PROTECTED]> wrote: > On Mon, 28 Feb 2005 09:39:30 -0800, Justin Patrin <[EMAIL PROTECTED]> wrote: > > I originally installed Gentoo on my server box a very long time ago > > (3-4 years I think) and it's still running strong. However, I'm > > noticing *big* lags when doing anything HD related. Even starting up > > simple programs takes some waiting while the HD is accessed. During > > large operations (say another box rsyncing to this one) it's much much > > slower thanit should be. I've checked top and my CPU is 90+% waiting > > for IO. This is certainly not right. There is plenty of unused RAM, no > > active swapping is being done AFAIK. > > > > I formatted my main partition with ReiserFS 3.6. It's worked fine up > > until now (and my new Gentoo box seems wiht with ReiserFS). This feels > > like a disk fragmentation issue, although I have no way to back that > > up. > > > > Does anyone have any tips for me? > > It sounds like you do not have DMA enabled for this drive. I'm > hesitant to give instructions as enabling DMA on some older machines > is documented by kernel folks as potentially a bad thing. (Causes > corruption, etc.) That said you can look at the status using > > hdparm /dev/hda (change as needed) > > and you can check speed using > > hdparm -tT /dev/hda > > If you have DMA enabled then the speed should be 10's of MB and low > CPU. If not then <5MB and lots of CPU. >
Already knew about that. It's set to the highest setting already. As I said, it used to work much better but it's been getting slower and slower lately. -- Justin Patrin -- [email protected] mailing list
