On 13/10/06, John Wendel <john.wendel@xxxxxxxxxxxxxxx> wrote:
Tony Nelson wrote: > At 12:28 AM +0200 10/13/06, Dotan Cohen wrote: >> On 12/10/06, Tony Nelson <tonynelson@xxxxxxxxxxxxxxxxx> wrote: >>> I have a Athlon 1.2 GHz 512 MB and it is not slow on FC5, though I'm not >>> running the same mix as you are. I think possibly something is not right >>> on your system. Does top show a high load, or indicate that the system is >>> swapping? Perhaps the disks are fragmented -- EXT2/3 data structures don't >>> suffer much from fragmentation, but the file data does. >> This is top: >> >> top - 00:26:49 up 15:35, 1 user, load average: 0.77, 0.61, 0.67 > > Load seems low enough. > >> Tasks: 110 total, 1 running, 109 sleeping, 0 stopped, 0 zombie >> Cpu(s): 2.7% us, 0.7% sy, 0.0% ni, 96.3% id, 0.0% wa, 0.3% hi, 0.0% si >> Mem: 1002168k total, 952200k used, 49968k free, 42264k buffers >> Swap: 1413648k total, 18460k used, 1395188k free, 575176k cached > > Not using much swap. > >> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND >> 4433 root 15 0 98.6m 56m 4944 S 1.3 5.8 347:19.29 Xorg >> 10572 dotancoh 16 0 32148 15m 11m S 1.0 1.6 0:01.07 konsole >> 4829 dotancoh 15 0 25544 3684 1752 S 0.7 0.4 2:02.78 dcopserver >> 5298 dotancoh 15 0 37460 22m 16m S 0.3 2.3 2:58.72 kicker >> 10574 dotancoh 16 0 2192 1112 856 R 0.3 0.1 0:00.05 top >> 1 root 16 0 1568 532 460 S 0.0 0.1 0:01.46 init >> 2 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0 >> 3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0 >> 4 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0 >> 5 root 10 -5 0 0 0 S 0.0 0.0 0:01.34 events/0 >> 6 root 10 -5 0 0 0 S 0.0 0.0 0:00.02 khelper >> 7 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kthread >> 9 root 10 -5 0 0 0 S 0.0 0.0 0:00.16 kblockd/0 >> 10 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 kacpid >> 105 root 15 0 0 0 0 S 0.0 0.0 0:00.24 pdflush >> 106 root 15 0 0 0 0 S 0.0 0.0 0:00.76 pdflush >> 108 root 18 -5 0 0 0 S 0.0 0.0 0:00.00 aio/0 >> >> How can I check fragmentation. Googling the subject makes me beleive >> that this is not the case in general with Linux. > > The common wisdom is that EXT2/3 are not affected by fragmentation, but > without much real-world proof that this is so. The EXT2/3 filesystem > metadata was designed to be not much affected by fragmentation, but that > says little about the file data. I read an article / webpage (that I can't > find right now) by someone who decided to experiment with new and used EXT2 > filesystems, and found a substatial slowdown. He was inspired to try this > because he noticed that his computer sped up when given a fresh filesystem. > You could try backing up and restoring to a fresh filesystem. If you > spring for a new computer you'll back up and restore to the new computer. > Either way you'll get a fresh new filesystem. Look at the Xorg Time. Doesn't 347:19.29 with an uptime of 15:35 seem extremely high? On my box, X uses about 4 minutes / hour of uptime. And the load averages on most of the desktops I use are mostly in the 0.1 - 0.3 range. This box has something eating CPU. I don't think the file system is the problem.
Thanks, John. What would be a first good step to diagnos this? Dotan Cohen http://english-lyrics.com/ http://lyricslist.com/
