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I've been running a callgrind session trying to figure out how we could
speed up opening the dash and it turned out that especially the first
time the dash is opened, we spend more than 25% of time in QueueDraw -
see the attached callgrind profile (best viewed with kcachegrind).
Attaching also a simple unity patch that was used to collect the data +
the command line was `valgrind --tool=callgrind --instr-atstart=no
--collect-atstart=no compiz --replace ccp`.
** Affects: nux (Ubuntu)
Importance: Undecided
Assignee: Andrea Azzarone (andyrock)
Status: In Progress
** Affects: unity
Importance: Undecided
Status: New
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QueueDraw is very expensive
https://bugs.launchpad.net/bugs/994884
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