From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Cure Subject: Re: performance trouble Date: Thu, 16 Feb 2012 09:55:53 +0100 Message-ID: <20120216085553.GX26955@nfs-rbx.ovh.net> References: <20120130165140.GJ26955@nfs-rbx.ovh.net> <4F26D190.4040207@redhat.com> <20120131171552.GL26955@nfs-rbx.ovh.net> <4F282315.30001@redhat.com> <20120202104148.GN26955@nfs-rbx.ovh.net> <20120203085944.GO26955@nfs-rbx.ovh.net> <4F2E4E1A.5000700@redhat.com> <20120210100930.GW26955@nfs-rbx.ovh.net> <4F3A6260.7050208@redhat.com> <20120214134030.GD18866@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]:47413 "EHLO gandalf.cure.nom.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755642Ab2BPIz6 (ORCPT ); Thu, 16 Feb 2012 03:55:58 -0500 Content-Disposition: inline In-Reply-To: <20120214134030.GD18866@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: hello, Le Tue, Feb 14, 2012 at 03:40:30PM +0200, Gleb Natapov ecrivait : > > Try to add -no-hpet to qemu command line and see if it helps. I add this line in my xml definition for libvirt : in the clock block. And I see the -no-hpet in the command line : /usr/bin/kvm -S -M pc-1.0 -enable-kvm -m 16384 -smp 2,sockets=2,cores=1,threads=1 -name rds1 -uuid 4f72a64e-de1a-b3da-adac-5dffdb9eb6aa -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/rds1.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime -no-hpet -no-shutdown -drive file=/dev/drbd1,if=none,id=drive-virtio-disk0,format=raw,cache=none,aio=native -device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/Iso/SW_DVD5_Windows_Svr_DC_EE_SE_Web_2008R2_64-bit_French_X15-59758.ISO,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=18,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:16:36:0c:a1:c4,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -usb -device usb-tablet,id=input0 -vnc 127.0.0.1:0 -k fr -vga std -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 But unfortunatly, the result is the same : always 12s to runs this function (to remember 8s on ESXi 4). David.