[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] reliable live migration of large and busy guests
On Tue, Nov 06, Keir Fraser wrote: > It's known that if you have a workload that is dirtying lots of pages > quickly, the final stop-and-copy phase will necessarily be large. A VM that > is busy dirtying lots of pages can dirty pages much quicker than they can be > transferred over the LAN. In my opinion such migration should be done at application level. > > Should 'xm migrate --live' and 'xl migrate' get something like a > > --no-suspend option? > > Well, it is not really possible to avoid the suspend altogether, there is > always going to be some minimal 'dirty working set'. But could provide > parameters to require the dirty working set to be smaller than X pages > within Y rounds of dirty page copying. Should such knobs be exposed to the tools like x[lm] migrate --knob1 val --knob2 val? Olaf _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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