[oe] Using bitbake in minimal chroot environment

[Martin Jansa]

On Mon, Feb 15, 2010 at 06:57:22PM +0100, Frans Meulenbroeks wrote:
> Someone else told me the same today.
> What exactly causes this? I would expect I/O to be the differentiating
> factor as memory access and executing instructions should take the
> same time, shouldn't it?

AFAIK virtualized I/O is slowest part of virtualized world and building
with bitbake is IMHO mostly about I/O.

I'm running my gentoo system upgrades as well as all bitbake builds
(workdirs) on raid0 - strip over 3 SATA2 disks (before that I was using
huge tmpfs in RAM for workdirs - but that's not usable ie for OO.org
build :))

And with chroot I can use it without any problem (just updated path in
already used mount --bind).

Also for running it from VM I would need to update host kernel from time
to time, on the other side sharing kernel with my running system didn't
create any OE related issue (except that sanity check for mmap with 
2.6.33+ - which is already fixed)

Regards,

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Jansa Martin                 sip:jamasip at voip.wengo.fr 
JaMa