I have esd sound disabled, and performance is still incredibly slow when
trackerd is running on a 2.6.22-{7,8,9} kernel. When I want to actually
get some work done, I "killall -STOP trackerd".
The effect on desktop performance is weird: it feels exactly like heavy
swapping. Menus etc. take seconds to appear. New apps take ages.
Dragging a window can even take 10 seconds or more before it responds.
But there is free RAM, and especially there's plenty of reclaimable
(i.e. not used by programs) RAM. I have 1GB.
It's not using much CPU either. (I have a Core Duo; neither core sees
much usage while trackerd is running).
So it may be in some way dependent on I/O. But this is with the
trackerd set to maximum throttling, i.e. slowest scanning.
Interestingly, the disk activity monitoring applet shows very little
activity (little spikes every second or two), but the disk light is
constantly on.
There's something else fishy: strace -p on the trackerd process shows
expected system calls, but sometimes killing the strace prints "Process
xxx detached" but then strace doesn't terminate, even with kill -9.
--
Heavy Disk I/O harms desktop responsiveness
https://bugs.launchpad.net/bugs/131094
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