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xen-devel
Re: [Xen-devel] [PATCH 1 of 3 V3] tools/libxc: Remus Checkpoint Compress
On Thursday, 13 October 2011 at 16:47, rshriram@xxxxxxxxx wrote:
> # HG changeset patch
> # User Shriram Rajagopalan <rshriram@xxxxxxxxx>
> # Date 1318545413 25200
> # Node ID 47fdd52af616131142ac5faeacd83f40786da59a
> # Parent 4b0907c6a08c348962bd976c2976257b412408be
> tools/libxc: Remus Checkpoint Compression
>
> Instead of sending dirty pages of guest memory as-is, use a simple compression
> algorithm that sends a RLE-encoded XOR of the page against its last sent copy.
> A small LRU cache is used to hold recently dirtied pages. Pagetable pages are
> sent as-is, as they are canonicalized at sender side and uncanonicalized at
> receiver.
>
> Signed-off-by: Shriram Rajagopalan <rshriram@xxxxxxxxx>
Acked-by: Brendan Cully <brendan@xxxxxxxxx>
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