From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37149) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1am5dL-0005oy-A1 for qemu-devel@nongnu.org; Fri, 01 Apr 2016 16:25:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1am5dH-0005zA-Uw for qemu-devel@nongnu.org; Fri, 01 Apr 2016 16:25:31 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45838) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1am5dH-0005z4-PI for qemu-devel@nongnu.org; Fri, 01 Apr 2016 16:25:27 -0400 Date: Fri, 1 Apr 2016 21:25:25 +0100 From: "Richard W.M. Jones" Message-ID: <20160401202525.GQ32728@redhat.com> References: <20160401111139.GK32728@redhat.com> <1459510371.7011.63.camel@redhat.com> <20160401114947.GM32728@redhat.com> <20160401153540.GD25490@morn.lan> <20160401184131.GP32728@redhat.com> <20160401185902.GE19398@redhat.com> <20160401190415.GA13599@morn.lan> <20160401191048.GF19398@redhat.com> <20160401191529.GG19398@redhat.com> <20160401194413.GA14938@morn.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20160401194413.GA14938@morn.lan> Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] Why is SeaBIOS used with -kernel? List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kevin O'Connor Cc: marc.mari.barcelo@gmail.com, Paolo Bonzini , Stefan Hajnoczi , Gerd Hoffmann , qemu-devel@nongnu.org On Fri, Apr 01, 2016 at 03:44:14PM -0400, Kevin O'Connor wrote: [...] I ran all the tests again, but this time I ran the test program 3 times (so 30 passes for each setting). As you can see from the results below the test is not very stable, so that could easily have accounted for the variation I saw when I only ran the test program once for each setting. The difference in .config is just: --- seabios-bootorder=3Dn.config 2016-04-01 21:19:53.599230008 +0100 +++ seabios-bootorder=3Dy.config 2016-04-01 21:19:31.090441232 +0100 @@ -14,7 +14,7 @@ CONFIG_THREADS=3Dy # CONFIG_RELOCATE_INIT is not set # CONFIG_BOOTMENU is not set -# CONFIG_BOOTORDER is not set +CONFIG_BOOTORDER=3Dy CONFIG_ENTRY_EXTRASTACK=3Dy CONFIG_MALLOC_UPPERMEMORY=3Dy CONFIG_ROM_SIZE=3D0 Rich. ---------------------------------------------------------------------- CONFIG_BOOTORDER=3Dy passes 10 append=20 backend libvirt hv /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 memsize 500 smp 1 Result: 1098.0ms =B10.8ms passes 10 append=20 backend libvirt hv /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 memsize 500 smp 1 Result: 1095.9ms =B10.4ms passes 10 append=20 backend libvirt hv /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 memsize 500 smp 1 Result: 1087.5ms =B13.8ms CONFIG_BOOTORDER=3Dn passes 10 append=20 backend libvirt hv /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 memsize 500 smp 1 Result: 1103.4ms =B12.6ms passes 10 append=20 backend libvirt hv /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 memsize 500 smp 1 Result: 1097.2ms =B14.8ms passes 10 append=20 backend libvirt hv /home/rjones/d/qemu/x86_64-softmmu/qemu-system-x86_64 memsize 500 smp 1 Result: 1098.0ms =B18.3ms --=20 Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rj= ones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/