hello, Le Sun, Feb 05, 2012 at 11:38:34AM +0200, Avi Kivity ecrivait : > > Please post a trace as documented in http://www.linux-kvm.org/page/Tracing. I made the trace : started just before the slow function launch and stoped just after. I start only one VM with 2 vcpus/16G RAM and only one user connected to the VM to launch the test. The trace file is too big to post here, I gzip it and the file is available here : http://www.roullier.net/report.txt.gz I hope you can find something strange. David. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html