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hi Matt,

> test_ceilometer_resource_list which just calls ceilometer 
> resource_list from the
> CLI once is taking >=2 min to respond. For example:
> http://logs.openstack.org/68/80168/3/gate/gate-tempest-dsvm-
> postgres-full/07ab7f5/logs/tempest.txt.gz#_2014-03-17_17_08_25_003
> (where it takes > 3min)

thanks for bringing this up... we're tracking this here: 
https://bugs.launchpad.net/ceilometer/+bug/1264434

i've put a patch out that partially fixes the issue. from bad to 
average... but i guess i should make the fix a bit more aggressive to 
bring the performance in line with the 'seconds' expectation.

cheers,
gordon chung
openstack, ibm software standards

Matthew Treinish <mtreinish at kortar.org> wrote on 17/03/2014 02:55:40 PM:

> From: Matthew Treinish <mtreinish at kortar.org>
> To: openstack-dev at lists.openstack.org
> Date: 17/03/2014 02:57 PM
> Subject: [openstack-dev] [Ceilometer] [QA] Slow Ceilometer 
> resource_list CLI command
> 
> Hi everyone,
> 
> So a little while ago we noticed that in all the gate runs one of 
> the ceilometer
> cli tests is consistently in the list of slowest tests. (and often 
> the slowest)
> This was a bit surprising given the nature of the cli tests we expect 
them to
> execute very quickly.
> 
> test_ceilometer_resource_list which just calls ceilometer 
> resource_list from the
> CLI once is taking >=2 min to respond. For example:
> http://logs.openstack.org/68/80168/3/gate/gate-tempest-dsvm-
> postgres-full/07ab7f5/logs/tempest.txt.gz#_2014-03-17_17_08_25_003
> (where it takes > 3min)
> 
> The cli tests are supposed to be quick read-only sanity checks of the 
cli
> functionality and really shouldn't ever be on the list of slowest tests 
for a
> gate run. I think there was possibly a performance regression recently 
in
> ceilometer because from I can tell this test used to normally take ~60 
sec.
> (which honestly is probably too slow for a cli test too) but it is 
currently
> much slower than that.
> 
> From logstash it seems there are still some cases when the resource list 
takes
> as long to execute as it used to, but the majority of runs take a long 
time:
> http://goo.gl/smJPB9
> 
> In the short term I've pushed out a patch that will remove this testfrom 
gate
> runs: https://review.openstack.org/#/c/81036 But, I thought it wouldbe 
good to
> bring this up on the ML to try and figure out what changed or why this 
is so
> slow.
> 
> Thanks,
> 
> -Matt Treinish
> 
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