[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Perf regression of netperf compared Xen 4.4 to origin/master
On Thu, Jul 03, 2014 at 11:46:30AM +0100, George Dunlap wrote: > On Wed, Jul 2, 2014 at 5:55 PM, Andrew Cooper <andrew.cooper3@xxxxxxxxxx> > wrote: > > On 02/07/14 17:52, Konrad Rzeszutek Wilk wrote: > >> The test is pretty silly. > >> > >> I've 14 guests, and I make each guest run netperf against the other. > >> I start with 1 pair, then 2 pairs, then up to 7. Each guest > >> is 768 MB, runs in a RAMdisk and just has one vif. The box is > >> a SuperMicro X8DB8+ with two E5520 and 12GB of RAM. > >> The netperf runs for a minute. The guests are PVHVM and I am > >> using qemu-upstream. The guest configs are: > >> > >> builder='hvm' > >> disk = [ 'file:/mnt/lab/bootstrap-x86_64/root_image.iso,hdc:cdrom,r'] > >> memory=768 > >> boot='d' > >> vcpus=1 > >> serial='file:/var/log/xen/console-g-vm0.log' > >> vnclisten='0.0.0.0' > >> name='g-vm0' > >> on_crash='preserve' > >> # IP is 192.168.102.90 > >> vif = [ 'mac=00:0f:4b:01:01:00, bridge=switch' ] > >> .. and naturally the ip, name and MAC change for each guest. > >> > >> The kernel for both the guest and domain 0 is the same - no > >> configuration change. The Xen is built without debug=y. > > > > What do you mean by this? master has debugging enabled by default so > > unless you build with debug=n, you will have a debug build. > > You don't know how many times I've tripped over this... <end flushes> Whew. It was indeed that, and next time I have to make that part of my checklist before sending to xen-devel! > > -George _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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