Re: [PATCH v6] add MAP_UNLOCKED mmap flag
From: Minchan Kim
Date: Tue Jan 19 2010 - 09:07:45 EST
On Tue, 2010-01-19 at 09:52 +0200, Gleb Natapov wrote:
> In my case (virtualization) I want to test/profile guest under heavy swapping
> of a guests memory, so I intentionally create memory shortage by creating
You mean "guest memory" that is area emulated DRAM in qemu?
It is anonymous vma.
> guest much large then host memory, but I want system to swap out only
> guest's memory.
Couldn't you use MADV_SEQUENTIAL on only guest memory area?
It doesn't make side effect about readahead since it's anon area.
And it would make do best effort to swap out guest's memory.
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