Re: More Slowdown

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

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On Mon, 2005-11-14 at 21:47 +0100, Christian Iversen wrote:
> That's _serisouly_ odd. I've seen something like this happen before, when X 
> programs generated some (non-harmful) X warnings. These were then written 
> into a log file, typically .xsession-errors or similar. Any chance that's 
> what you are seeing?
> 

This explains the problem with Evolution, it looks a bit trigger happy
with the fsync call while resizing columns.
craig@teratron.lan.etheus.net:~$ strace -p 8002 2>&1 | grep fsync
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0
fsync(37)                               = 0

while true; do lsof  -p 8002 2>&1 | grep 37w ; done
evolution 8002 craig   37w   REG        3,4     417
1901436 /mnt/storage/craig-home/.evolution/mail/views/.#custom_view-mbox:_home_craig_.evolution_mail_local#Lists_Reiser4.xmlwhile 

The file listed above seems to get moved, but is only a few hundred
bytes.

ls -lh /mnt/storage/craig-home/.evolution/mail/views/custom_view-mbox
\:_home_craig_.evolution_mail_local#Lists_Reiser4.xml
-rw-------  1 craig craig 417 2005-11-15
14:19 /mnt/storage/craig-home/.evolution/mail/views/custom_view-mbox:_home_craig_.evolution_mail_local#Lists_Reiser4.xml

Why does calling fsync on this one small file cause so much hard disk
activity?


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

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