Re: [Libguestfs] [PATCH v2 0/7] tests/qemu: Add program for tracing and analyzing boot times.
On 03/20/2016 18:05, Richard W.M. Jones wrote:
[...]
I've just pushed what I'm working on to my fork of the repo
(https://github.com/rwmjones/libguestfs/commits/master).
[...]
> Installed it and I got similar results to yours, the largest
> overhead is BIOS:
> https://gist.github.com/anonymous/37cfb3d4eb3d3a1c86b2
Your qemu overhead is lower. That could be because of:
https://bugzilla.redhat.com/show_bug.cgi?id=1319483
Interestingly your total time is at least double mine. Either your
hardware is slower or there's something else going on.
Maybe I had an old appliance:
rm -rf /var/tmp/.guestfs-1000/ && bash ./run tests/qemu/boot-analysis
I should've used this instead to take advantage of new supermin:
rm -rf tmp && bash ./run tests/qemu/boot-analysis
I've rebuilt libguestfs from the branch above and now I get 3.17s on Debian with the
4.3 kernel:
https://gist.github.com/anonymous/64e191bedce532ba2526
Still slower than yours, but could be due to different kernel/qemu versions, or could
indeed be due to CPU.
Best regards,
--
Edwin Török | Co-founder and Lead Developer
Skylable open-source object storage: reliable, fast, secure
http://www.skylable.com