[Libguestfs] [PATCH v2 0/7] tests/qemu: Add program for tracing and analyzing boot times.

[Kashyap Chamarthy]

On Mon, Mar 21, 2016 at 01:18:55PM +0000, Richard W.M. Jones wrote:
> On Mon, Mar 21, 2016 at 01:16:28PM +0000, Richard W.M. Jones wrote:
> > On Mon, Mar 21, 2016 at 02:14:19PM +0100, Kashyap Chamarthy wrote:
> > > I gave this series a spin, along a custom QEMU, and `supermin` from Git,
> > > for my `libguestfs-test-tool` itself fails with:
> > > 
> > >     "Could not open option rom 'linuxboot_dma.bin': No such file or
> > >     directory"
> > 
> > The qemu build is broken in some way.  To fix it you have to do:
> > 
> >   cp pc-bios/optionrom/linuxboot_dma.bin pc-bios/optionrom/
> 
> I mean:
> 
> cp pc-bios/optionrom/linuxboot_dma.bin pc-bios/

Yep, that did it.  Thanks!

I see about 1.35 seconds time improvement, with `supermin` from Git +
QEMU & the add patch[1].

    https://kashyapc.fedorapeople.org/virt/stdouts/faster-supermin-custom-qemu-appliance-boot-analysis.txt

This is with `supermin` from F23, and QEMU from Git (without adding the
'optionrom' patch):

    https://kashyapc.fedorapeople.org/virt/stdouts/supermin-f23-without-add-optionrom-patch-boot-analysis.txt


[1] https://patchwork.ozlabs.org/patch/575578/

-- 
/kashyap