On Thu, Aug 6, 2015 at 1:37 PM, Marc Marí markmb@redhat.com wrote:
On Thu, 6 Aug 2015 13:27:16 +0100 Stefan Hajnoczi stefanha@gmail.com wrote:
On Thu, Aug 6, 2015 at 12:00 PM, Marc Marí markmb@redhat.com wrote:
When running a Linux guest on top of QEMU, using the -kernel options, this is the timing improvement for x86:
QEMU commit 2be4f242b50a8 and SeaBIOS commit 908a58c1d5ff QEMU startup time: .078 BIOS startup time: .060 Kernel setup time: .578 Total time: .716
QEMU with this patch series and SeaBIOS with this patch series QEMU startup time: .080 BIOS startup time: .039 Kernel setup time: .002 Total time: .121
Impressive results!
Is this a fully-featured QEMU build or did you disable things?
Is this the default SeaBIOS build or did you disable things?
This is the default QEMU configuration I get for my system. It's not a fully-featured QEMU, but it has a lot of things enabled. SeaBIOS has a default configuration (with debugging disabled).
That's great.
Since SeaBIOS is a default configuration, the remaining BIOS startup time is amenable to more optimizations in the future.
Stefan