[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v3] tools/libxc: Batch memory allocations for PV guests
On Mon, 2015-06-15 at 17:08 +0100, Wei Liu wrote: > On Mon, Jun 15, 2015 at 11:12:07AM +0100, Ross Lagerwall wrote: > > The current code for allocating memory for PV guests batches the > > hypercalls to allocate memory by allocating 1024*1024 extents of order 0 > > at a time. To make this faster, first try allocating extents of order 9 > > (2 MiB) before falling back to the order 0 allocating if the order 9 > > allocation fails. > > > > On my test machine this reduced the time to start a 128 GiB PV guest by > > about 60 seconds. From 61s or from 600s? > > > > Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx> > > Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx> Applied. There were some rejects due to "libxc: unify handling of vNUMA layout" having gone in first, I think they were just contextual and they seemed trivial to resolve, but please do (both) check. Ian. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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