Open Stack

On 08/04/15 08:59 -0400, Doug Hellmann 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?

Just wanted to +1 the above.

I've also considered pbr a packaging/install tool. Furthermore, I
believe having it as a runtime requirement makes packagers life more
complicated because that means pbr will obviously need to be added as
a runtime requirement for that package.


Flavio

>
>Doug
>
>>
>> -Rob
>>
>
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-- 
@flaper87
Flavio Percoco
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