[gamin] performance - growing cpu usage

[Ivan Mitev <imitev obs bg>]

hi !

following the resolution of bug 143865 
(https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=143865), i've 
replaced fam with gamin on a busy mail server (courier-imap with 300+ 
accounts and idle feature turned on)

however, even with no load, gam_server seems to consume more and more 
cpu cycles;  on the attached mrtg graph, you'll see that
- until 16, fam was running with the same cpu usage (flat average), and 
i've replaced it with gamin ; the peaks are because of tests  - moving 
forth and back a hundred of mails - to check how fast they would 
appear/disappear in thunderbird and the ressource used. everything was ok.
- then, during the night, with almost no courier-imap activity (it's 
sunday night, only a few email clients are up), the cpu usage slowly grows
- this morning, a bit before 8, gam_server is quite always showing on 
the 1st line of top, using a few cpu percents. -> revert back to fam :(

the monitored files are in /home, which is actually a mount --bind of 
/mailspace1 ; /home/vmail/.gaminrc only contains "notify /home/*" to be 
sure that polling is not used. courier-imap always run under the vmail 
account.

the kernel is from kernel.org - not patched with inotify. gamin's 
version is 0.1.1, compiled from the site's source rpm for fedora core 2.

any idea ?

thx,
ivan