What is “dirty” memory in Instruments?
Question
When I monitor my application using instruments and the instrument "allocations" I see a big amount of memory being marked as "dirty". What does that mean? I have no memory leaks in my application yet this pile of "dirty" memory keeps increasing.
2 answers
solution1
2 2012-05-05 12:20:11
"...I am trying to find out what is using up all my memory."
The WWDC 2010 Session 311 presentation, Advanced Memory Analysis with Instruments , includes a section on 'Responding to Memory Warnings' (at ~38:40 in the video) with a demo that illustrates how to find "resident, dirty memory" with the Instruments VM Tracker and one way to flush it.
solution2
2 ACCPTED 2011-06-22 17:08:09
Dirty is a computer term used to denote cached data that needs to be sync'ed with the main memory. Don't worry, since this is automatically done by the hardware.
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