Comment 4 for bug 751042

Revision history for this message
Andrew Bennetts (spiv) wrote : Re: [Bug 751042] Re: BzrDirFormat.initialize_ex_1.16 on Launchpad wastes time making Twisted failures

John A Meinel wrote:
> It looks like you did land the first of your 2 patches, but are still missing the second revision, and my one follow up revision.
> http://bazaar.launchpad.net/~jameinel/launchpad/faster-branch-vfs-740759/revision/12687

Your measurements showed this had no significant effect, so I dropped it
from my branch. It doesn't seem worth adding such an ugly hack for no
measureable benefit.

[…]
> I just ran 10 'bzr push' to new branches on Launchpad, and this is the timing I see. Note that it doesn't show where the time is spent on the server.
> 1.764s
> 1.968s
> 2.125s
> 2.079s
> 4.733s
> 1.531s
> 1.352s
> 1.449s
> 1.910s
> 1.648s
>
> So there can still be a lot of variability (peak of 4.7s here), the
> fastest time was 1.3s, the average is 2.0s.

If the speed up is evident through all that variability we'll know we've
done a great job :)