This corresponds to the evince upload and is related to bug #940362
somewhat. Any time a profile changes or the kernel changes in a way that
requires recompiling the profiles there is a one time performance cost
of recompiling those profiles. evince in particular takes a long time to
compile on some systems. We had to back out the minimization patch to
workaround bug #940362, but even with minimization you would still have
seen a significant spike (guessing here-- on same system it might have
been 20-25 seconds).
We should be using binary caches now so that if the profile doesn't
change and the kernel doesn't change then we don't have to recompile and
we just load the profiles from cache. It looks like the 2.7.99 upload
isn't updating the cache properly as I only see one profile in
/etc/apparmor.d/cache, but we should have six.
** Changed in: apparmor (Ubuntu Precise)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/949891
Title:
apparmor upload has severely regressed 2012-03-06 boot time
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