Re: [RFC 0/3] low memory notify
From: Pekka Enberg <penberg@kernel.org>
Date: 2012-01-17 15:04:30
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On Tue, Jan 17, 2012 at 4:38 PM, Colin Walters [off-list ref] wrote:
So what you really want to be investigating here is integration between a garbage collector and the system VM. Your test program looks nothing like a garbage collector. I'd expect most of the performance tradeoffs to be similar between these runtimes. The Azul people have been doing something like this: http://www.managedruntime.org/
The interraction isn't all that complex, really. I'd expect most VMs
to simply wake up the GC thread when poll() returns. GCs that are able
to compact the heap can madvise(MADV_DONTNEED) or even munmap() unused
parts of the heap.
Pekka
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