Open Stack

On Wed, Apr 8, 2015 at 7:59 AM, Doug Hellmann <doug at doughellmann.com> wrote:

> Excerpts from Robert Collins's message of 2015-04-07 10:43:30 +1200:
> > On 7 April 2015 at 05:11, Joe Gordon <joe.gordon0 at gmail.com> wrote:
> > >
> > >
> > > On Mon, Apr 6, 2015 at 8:39 AM, Dolph Mathews <dolph.mathews at gmail.com
> >
> > > wrote:
> > >>
> > >>
> > >> On Mon, Apr 6, 2015 at 10:26 AM, Boris Pavlovic <boris at pavlovic.me>
> wrote:
> > >>>
> > >>> Jay,
> > >>>
> > >>>
> > >>>> Not far, IMHO. 100ms difference in startup time isn't something we
> > >>>> should spend much time optimizing. There's bigger fish to fry.
> > >>>
> > >>>
> > >>> I agree that priority of this task shouldn't be critical or even
> high,
> > >>> and that there are other places that can be improved in OpenStack.
> > >>>
> > >>> In other hand this one is as well big source of UX issues that we
> have in
> > >>> OpenStack..
> > >>>
> > >>> For example:
> > >>>
> > >>> 1) You would like to run some command X times where X is pretty big
> > >>> (admins likes to do this via bash loops). If you can execute all of
> them for
> > >>> 1 and not 10 minutes you will get happier end user.
> > >>
> > >>
> > >> +1 I'm fully in support of this effort. Shaving 100ms off the startup
> time
> > >> of a frequently used library means that you'll save that 100ms over
> and
> > >> over, adding up to a huge win.
> > >>
> > >
> > >
> > > Another data point on how slow our libraries/CLIs can be:
> > >
> > > $ time openstack -h
> > > <snip>
> > > real    0m2.491s
> > > user    0m2.378s
> > > sys     0m0.111s
> >
> >
> > pbr should be snappy - taking 100ms to get the version is wrong.
>
> I have always considered pbr a packaging/installation time tool, and not
> something that would be used at runtime. Why are we using pbr to get the
> version of an installed package, instead of asking pkg_resources?
>
> Doug
>
> >
> > -Rob
> >
>
>
I have no idea if one is better than the other, but I figured It was easy
enough to post the change for keystoneclient:
https://review.openstack.org/#/c/171720/ .

- Brant
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