From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Cure Subject: Re: performance trouble Date: Tue, 20 Mar 2012 12:18:39 +0100 Message-ID: <20120320111839.GT12293@nfs-rbx.ovh.net> References: <20120217085939.GZ26955@nfs-rbx.ovh.net> <20120217100714.GB29601@redhat.com> <20120217140107.GA26955@nfs-rbx.ovh.net> <20120219091315.GA10038@redhat.com> <20120222163356.GE26955@nfs-rbx.ovh.net> <20120223083807.GA17505@redhat.com> <20120316101331.GM12293@nfs-rbx.ovh.net> <20120319105134.GA27928@redhat.com> <20120320093220.GS12293@nfs-rbx.ovh.net> <20120320094541.GH22368@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Avi Kivity , kvm@vger.kernel.org, Vadim Rozenfeld To: Gleb Natapov Return-path: Received: from gandalf.cure.nom.fr ([91.121.137.146]:46669 "EHLO gandalf.cure.nom.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759688Ab2CTLSo (ORCPT ); Tue, 20 Mar 2012 07:18:44 -0400 Content-Disposition: inline In-Reply-To: <20120320094541.GH22368@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Le Tue, Mar 20, 2012 at 11:45:41AM +0200, Gleb Natapov ecrivait : > > This is without -no-hpet :) Also I hope you are not measuring time while haaaaa yes, sorry for the mistake. > tracing since it supposed to be slower. Can you please try to run with > -cpu host,-hypervisor and -no-hpet and see if times are better. I use libvirt to start the VM, do you know how to modify the xml file to have this option generated (I know for the -no-hpet, but not for other) ? If not, I capture the command and modify it to run directly. David.