[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-research] Re: [Xen-users] xm save -c
Whoops, forgot to mention this is a patch for Xen 3.2.2, though I'm sure the changes can be applied to unstable. On Fri, Nov 14, 2008 at 1:35 PM, Mike Sun <msun@xxxxxxxxxx> wrote: > The modification to do a checkpoint using the live migration mechanism > of pre-copying is a trivial one and just something we're benchmarking > against with our CoW solution. Here's a patch that changes 'xm save > -c' to do the checkpoint using the live migration mechanism instead of > the default way. Word of warning: it's a hack and I haven't made the > changes necessary so that the checkpoint file won't contain the pages > copied during the copy rounds so the checkpoint file will be much > larger than necessary. > > I'm not sure why a checkpoint with pre-copying mechanism hasn't been > enabled in Xen yet as the necessary code is all there. > > Cheers, > Mike > > diff -r dca3b5e459e3 tools/python/xen/xend/XendDomain.py > --- a/tools/python/xen/xend/XendDomain.py Wed Sep 17 15:46:05 2008 +0100 > +++ b/tools/python/xen/xend/XendDomain.py Fri Nov 14 13:28:39 2008 -0500 > @@ -1333,7 +1333,8 @@ > oflags |= os.O_LARGEFILE > fd = os.open(dst, oflags) > try: > - XendCheckpoint.save(fd, dominfo, False, False, dst, > + live = True > + XendCheckpoint.save(fd, dominfo, False, live, dst, > checkpoint=checkpoint) > except Exception, e: > os.close(fd) _______________________________________________ Xen-research mailing list Xen-research@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/mailman/listinfo/xen-research
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