[openstack-dev] [requirements] [infra] speeding up gate runs?

Brant Knudson blk at acm.org
Wed Nov 4 15:50:33 UTC 2015


On Wed, Nov 4, 2015 at 6:47 AM, Sean Dague <sean at dague.net> wrote:

> I was spot checking the grenade multinode job to make sure it looks like
> it was doing the correct thing. In doing so I found that ~15minutes of
> it's hour long build time is compiling lxml and numpy 3 times each.
>
>
I've always wondered why lxml is used rather than python's built-in XML
support. Is there some function that xml.etree is missing that lxml.etree
provides? The only thing I know about is that lxml has better support for
some XPATH features.

:: Brant


> Due to our exact calculations by upper-constraints.txt we ensure exactly
> the right version of each of those in old & new & subnode (old).
>
> Is there a nodepool cache strategy where we could pre build these? A 25%
> performance win comes out the other side if there is a strategy here.
>
>         -Sean
>
>



> --
> Sean Dague
> http://dague.net
>
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