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[Christian Boltz <387657@xxxxxxxxxxxxxxxxxx>]

Just for the records - bzr trunk contains some patches that make aa-
logprof faster *a lot* (~70% time saved) (thanks Peter!). Those patches
didn't even touch the functions I mentioned above, so there's still room
for improvement ;-)

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https://bugs.launchpad.net/bugs/387657

Title:
  aa-logprof: doesn't handle large logs

Status in AppArmor Linux application security framework:
  Triaged
Status in apparmor package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: apparmor

  Ubuntu 8.04.2
  Package: apparmor-utils
  Version: 2.1+1075-0ubuntu9.2

  My first experience with AppArmor was finding a kernel log file that
  was full of 800 MB of AppArmor warnings from Samba and CUPS. I'm not
  sure what suddenly enabled AppArmor on this LTS system, but while
  fixing the problem I noticed....

  aa-logprof, while processing an 800 MB log file, drove the load
  average up into the high 40's. I suspect it was trying to load the
  whole thing into memory (on a system with 1 GB of RAM). I'd recommend
  revising the architecture so that it processes the lines as it sees
  them.

  I worked around the problem by splitting the file into a dozen 75MB
  chunks.

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