How to ease the burden on the Garbage Collector?
How to ease the burden on the Garbage Collector?
- Subject: How to ease the burden on the Garbage Collector?
- From: Gabriel Zachmann <email@hidden>
- Date: Thu, 8 Oct 2009 16:29:31 +0200
I'm writing a simple screensaver that is basically kind of a slide
show screensaver.
(So it loads many images over time, but needs to keep only 2-3 in
memory at any given time.)
I am using Core Animation for some animations on the images.
I've just profiled the screensaver under 10.6 using Shark on a dual-
core MacBookPro.
It seems that about 20% of the time is spent in the Garbage Collector
thread!
Which is a bit surprising to me, since I don't allocate a large number
of objects (I think) -- just a small number of large objects (the
images).
Is there anything I can do to alleviate the burden on the GC?
(The code was written under 10.5 in the reference-counted model.)
Regards,
Gabriel.
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