Re: Xcode 4.3.1 memory usage
Re: Xcode 4.3.1 memory usage
- Subject: Re: Xcode 4.3.1 memory usage
- From: Jens Alfke <email@hidden>
- Date: Mon, 12 Mar 2012 22:23:24 -0700
On Mar 12, 2012, at 9:50 PM, Brad Oliver wrote: Over the course of a day, Xcode 4.3's memory usage creeps up from roughly 523 MB from a fresh launch with my workspace opened, to somewhere north of 7GB after several hours of work.
What sort of memory, or rather, what is reporting that figure? There are lots of ways to measure memory usage, and they mean different things. The one I tend to rely on is RPRVT (“Real Private Memory” in Activity Monitor), which shows the amount of actual RAM being used exclusively by that process. This tends to measure stuff like the heap, and not shared things like framework code.
The ‘heap’ tool is also useful for figuring out WTF is going on with a process’s memory usage, as it’ll break down heap usage by block size and object type.
—Jens
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