Re: More Slowdown

[Craig Shelley <craig@microtron.org.uk>]

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On Tue, 2005-11-15 at 19:04 +0100, Laurent Riffard wrote:
> Please, could you do it again with the -T option for strace? It will
> show the time spent in system  calls.
> 
craig@teratron.lan.etheus.net:~$ strace -T -p 8002 2>&1 | grep fsync
fsync(26)                               = 0 <0.566159>
fsync(26)                               = 0 <0.159852>
fsync(26)                               = 0 <0.179659>
fsync(26)                               = 0 <0.153406>
fsync(26)                               = 0 <0.136685>
fsync(26)                               = 0 <0.171057>
fsync(26)                               = 0 <0.165733>
fsync(26)                               = 0 <0.178846>
fsync(26)                               = 0 <0.186595>
fsync(26)                               = 0 <0.184368>
fsync(26)                               = 0 <0.177273>
fsync(26)                               = 0 <0.178634>
fsync(26)                               = 0 <0.181036>
fsync(26)                               = 0 <0.178750>
fsync(26)                               = 0 <0.324480>
fsync(26)                               = 0 <0.177226>
fsync(26)                               = 0 <0.184625>
fsync(26)                               = 0 <0.186224>
fsync(26)                               = 0 <0.177282>
fsync(26)                               = 0 <0.177146>
fsync(26)                               = 0 <0.176000>
fsync(26)                               = 0 <0.192434>
fsync(26)                               = 0 <0.177482>
fsync(26)                               = 0 <0.183357>
fsync(26)                               = 0 <0.176528>
fsync(26)                               = 0 <0.184334>
fsync(26)                               = 0 <0.176622>
fsync(26)                               = 0 <0.177977>
fsync(26)                               = 0 <0.178636>
fsync(26)                               = 0 <0.259863>
fsync(26)                               = 0 <0.172789>
fsync(26)                               = 0 <0.171739>
fsync(26)                               = 0 <0.179641>
fsync(26)                               = 0 <0.178157>
fsync(26)                               = 0 <0.180272>
fsync(26)                               = 0 <0.170426>
fsync(26)                               = 0 <0.187630>
fsync(26)                               = 0 <0.171589>
fsync(26)                               = 0 <0.178135>


I seem to be finding that the performance of the system degrades with
time and file system usage.
Openoffice really starts to run slow after a while. Just as an
experiment, I did 
ls -R /usr
The directory listing appeared very quickly with hardly any hard disk
access. Then shortly later when switching back to Openoffice, the
process froze for about 3 minutes with continuous hard disk access.

One thing which may be relevant is that my kernel is patched with
Suspend2 and FBsplash, although I can't remember having any problems
like this before.

Many Thanks,

-- 
Craig Shelley
EMail: craig@microtron.org.uk
Jabber: shell@jabber.earth.li

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