On Fri, Apr 01, 2016 at 06:25:24PM -0400, Kevin O'Connor wrote: > I'm getting different results. When you have time we should probably > track down the discrepancy. Some of the difference is likely due to > different hardware (I'm using kvm on an old AMD machine) and some is > likely due to different test methodology (I'm timing SeaBIOS debug > output). However, the changes on that testing branch reliably improve > the boot by 70ms for me when there is a virtio-scsi device present.
Indeed - I have retested everything in the cold light of day, and it does save time. SeaBIOS master branch from current git: Result: 974.2ms ±2.0ms Result: 988.5ms ±11.3ms Result: 974.9ms ±7.3ms SeaBIOS KevinOConnor/testing branch: Result: 942.5ms ±4.2ms Result: 930.0ms ±2.1ms Result: 934.7ms ±3.4ms (Note these times are not comparable with the previous ones, because in a parallel set of investigations I've disabled libvirt and am running qemu directly, so there is no libvirt overhead.) Thanks, Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org
