It seems the process is mostly opening and parsing the applications
folder in my home directory as well as the /etc/ one, and it is running
gettimeofday often too.
Having straced the process for about a minute I found a few thousand
gettimeofday(), thousands of time(NULL), thousands of stat64 on application
folders' files such as:
622 stat64("/usr/share/gnome/apps/Games", {st_mode=S_IFDIR|0755,
st_size=4096, ...}) = 0
622 stat64("/usr/share/gnome/apps/Graphics", {st_mode=S_IFDIR|0755,
st_size=4096, ...}) = 0
622 stat64("/usr/share/gnome/apps/Internet", {st_mode=S_IFDIR|0755,
st_size=4096, ...}) = 0
and thousands of weird stat64's, such as:
3731 stat64("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
3732 stat64("/usr/share/gnome/apps", {st_mode=S_IFDIR|0755, st_size=4096,
...}) = 0
3732 stat64("/usr/share/gnome", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
6842 stat64("/usr/share", {st_mode=S_IFDIR|0755, st_size=8192, ...}) = 0
8086 stat64("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
where the number before stat64 is the number of calls during this minute.
It is _heavy_ file system querying, which offcourse is madness.
--
gnome-panel eats 50% cpu for half an hour and flickers
https://launchpad.net/bugs/52405
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