Snow Leopard Memory Management
Snow Leopard Memory Management
- Subject: Snow Leopard Memory Management
- From: Duane Murphy <email@hidden>
- Date: Wed, 28 Oct 2009 21:42:02 -0700
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I'm wondering if there have been significant changes to the memory
manager on Snow Leopard?
We are seeing situations where the kernel is running out of memory. If
the system remains idle for some period of time, then more memory
becomes available or at least more virtual memory space becomes
available (this is in K32).
For example, IOMemoryDescriptor::withAddress( buffer, bufferSize,
kIODirectionIn) will fail for 32K but will work for 512 bytes. After
some period of time, the 32K will begin to work again.
We haven't seen these same sort of issues in Leopard.
Is there something we should be doing differently to manage memory in
the kernel?
...Duane
ps
Yes, I will be doing a search for leaks. :-)
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