delta rebuild

[Adam Williamson]

On Thu, 2009-10-01 at 07:30 +0200, Joachim Backes wrote:
> On 10/01/2009 07:02 AM, Adam Williamson wrote:
> > On Wed, 2009-09-30 at 21:52 -0700, John Poelstra wrote:
> >> Every time I see this during a 'yum update' I wonder what it really
> >> means or if it is a bug.
> >>
> >> <delta rebuild>  22% [===     ] 277 kB/s |  50 MB     10:35 ETA
> >>
> >> Isn't the kB/s being displayed for a CPU activity?  Usually this speed
> >> output is associated with the network download speed.  It seems strange
> >> to to see it in this context.  Is it really telling us anything useful?
> >
> > it's a simple way to compare whether the delta RPM thing is saving you
> > any time. If that speed is faster than your download speed, it is...
> 
> But sometimes it is reduced to some tens of kB/s :-)

there's a discussion on -devel-list atm; we're using a much too
intensive compression setting for xz. that should get reduced, which
would make the rebuild stage much faster.

-- 
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Fedora Talk: adamwill AT fedoraproject DOT org
http://www.happyassassin.net