On Thu, 2009-07-23 at 13:56 -0400, Cole Robinson wrote:
On 07/23/2009 01:34 PM, Mark McLoughlin wrote:
Hey, Here's a series of patches to implement danpb's suggestion of using 'qemu -M ?' to probe for valid machine types and then to build on that for the machine type canonicalization.
Cheers, Mark.
What's the speed difference of GetCapabilities after these patches? Not that it needs to be fast, but it would be useful to know if it's slowwwwwwww.
It's a fair point, especially since it wasn't long ago we discussed this: http://www.redhat.com/archives/libvir-list/2009-April/msg00537.html I took your little script, made it do 100 iterations, ran that 20 times on F-11 and averaged the results: - Before this series of patches, it's averaging at 10ms, giving 100us per call - After this series with only qemu-system-x86 installed, it's averaging at 1.7s, giving 17ms per call - With qemu-system-arm/mips/ppc/sparc and xenner installed, it's averaging at 5.8s, giving 58ms per call 60ms vs 100us is a huge slowdown, relatively speaking. Is 60ms an unacceptable worst-case got a GetCapabilities call? Probably not, but it is certainly approaching unacceptable. Cheers, Mark.