Question Regarding Xcode Memory Usage
Question Regarding Xcode Memory Usage
- Subject: Question Regarding Xcode Memory Usage
- From: Simon Wilson <email@hidden>
- Date: Mon, 23 Aug 2010 13:29:41 +0200
I'm using Xcode 3.1 on a MacBook Pro with 4GB RAM running 10.6.4.
I've noticed a discrepancy between the RAM usage that is reported for the Xcode process and that which is actually freed when I close the application.
For example, Activity Monitor was reporting Xcode as using 392.2MB real memory and 702.4MB virtual memory. It reported 316MB of free memory and a further 825MB as inactive.
I then quit Xcode (routinely the consumer of the most memory) to reclaim some RAM (initial memory utilization after opening my project is far lower).
Immediately after the the process terminated Activity Monitor reported 1.68GB of free memory and 700MB as inactive. Quitting Xcode apparently resulted in ~1.3GB of memory being freed. Active memory decreased by the same amount (down to 880MB from 2.1GB).
Can anyone explain the discrepancy between the approx. 400MB used by the Xcode app and the almost 1.3GB that is actually freed when I close the application? As far as I can tell Xcode doesn't seem to be running any other helper processes that might explain the difference.
Cheers,
Simon
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