Danie Roux wrote:
On Mon, Sep 06, 2004 at 02:09:47PM -0700, Mike Fedyk wrote:Danie Roux wrote:Using XFS, and kernel 2.6.8. In the past two weeks I noticed that my PC load shoots up on anything that needs disk activity. The CPU's are quiet during all this: top - 17:04:09 up 6:07, 3 users, load average: 2.25, 1.88, 1.37 Cpu0 : 10.3% us, 4.0% sy, 0.0% ni, 76.3% id, 8.7% wa, 0.7% hi, 0.0% Cpu1 : 11.3% us, 3.3% sy, 0.0% ni, 70.4% id, 15.0% wa, 0.0% hi, 0.0% It gets so bad that the mouse starts jerking! Does anyone have some advice on where to start looking for optimizing? (hdparm -t looks fine)How about disk subsystem info? IDE, SATA, or SCSI? Controller? Memory? Are you reading a bunch of small files or large files?Sorry about that: 512M RAMSingle IDE drive: "hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=16383/255/63, UDMA(100)" On my runninghdparm: /dev/hda: Timing buffered disk reads: 168 MB in 3.03 seconds = 55.51 MB/sec And a simple "aptitude dist-upgrade" would make my mouse start jerking.
Are you running any binary modules? What is the prioroty of your X server? run "vmstat 1" during the jerkiness. Is it swapping? Mike