Monday, 2018-11-05

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mlavalle#startmeeting neutron_performance16:01
openstackMeeting started Mon Nov  5 16:01:27 2018 UTC and is due to finish in 60 minutes.  The chair is mlavalle. Information about MeetBot at
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.16:01
*** openstack changes topic to " (Meeting topic: neutron_performance)"16:01
openstackThe meeting name has been set to 'neutron_performance'16:01
mlavallehey guys16:02
mlavallerubasov: when are you arriving to Berlin?16:02
rubasovmlavalle: monday early afternoon16:02
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rubasovmlavalle: the same plane as gibi16:02
mlavalleI'll be there since Friday morning. I'm attending the edge computing hackathon16:03
mlavalleduring the weekend16:03
rubasovmlavalle: sounds interesting16:03
bcafarelthis time it's not my fault holding the others from being there :)16:04
mlavallebcafarel: duly noted16:04
mlavallelet's wait one more minute16:04
mlavallefor slaweq16:04
mlavalleok, let's get started16:05
mlavalle#topic last week's action items16:06
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mlavalleFirst rubasov to add top request offenders to rally job16:06
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rubasovI'm sorry to report but I didn't make much progress16:07
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rubasovstarted to learn about rally16:07
rubasovbut then got busy with other stuff16:07
mlavalleyeah, I imagine16:07
mlavallethe demo, maybe?16:07
rubasovbut I still have it on my todo list16:07
slaweqsorry for being late16:07
rubasovso I will get to it at some point16:08
mlavallelet's move that action item for the next meeting16:08
mlavalle#action rubasov to add top request offenders to rally job16:08
mlavallenext one is slaweq to create a experimental rally job with osprofiler enabled16:09
slaweqso, I proposed patch for rally
slaweqand then I have WIP patch which depends on it:
slaweqit basically works, and I can see trace id in rally result16:10
slaweqbut now I need to copy somehow redis db to job result files16:10
slaweqso I will continue work on this in next days16:10
mlavalleGreat progress slaweq. Thanks16:11
mlavallenext action item was mlavalle to simplify the DB traces16:12
mlavalleI just proposed this patch
mlavalleI made sure that the code that I am removing is the only one in Neutron that add traces for SQLAlchemy16:13
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mlavalleso after this one merges, we should get much cleaner reports16:14
mlavallewith less duplicate information16:14
mlavallewhich will make the reports easier to analyze16:14
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mlavallethat's it for action items16:14
mlavalle#topic On demand agenda16:15
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njohnston_I just wanted to note that the ipam work I have been doing has some promising speed results16:15
mlavallehow so?16:15
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njohnston_ look at my last comment16:17
njohnston_the rally task "Action neutron.create_port (x50)" looks like it is ~30% faster16:17
mlavallewow, nice!16:18
mlavalleshould we add some profiling calls to the IPAM code?16:18
njohnston_This is mostly accomplished by taking the code in ipam to try to randomly select new IPs (to avoid contention) and replacing it with random.sample16:18
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njohnston_mlavalle: We could, although I think we may have wrung all the speed gains we can out of this code.  But I'm definitely open to adding profiling to confirm it. :-)16:19
mlavallemhhhh, no, if you don't see it evidently worthwhile at this point, let's wait until we can see results from the rally jobs16:20
mlavallewith more data, we may conclude that further investigation is warranted16:21
mlavallebut at this point I think we are still "shooting in the dark"16:21
mlavallebut I think this work will definitely have impact16:22
mlavallebecuase port creation is among the top offenders16:22
mlavallewhich this work with IPAM impacts16:22
mlavallegreat job, njohnston_16:23
njohnston_I agree - and I want to thank tidwellr and Roman (I don;t know his IRC) for great review feedback16:23
njohnston_would not have happened without them16:23
slaweqnjohnston_: Roman's nic is gryf :)16:24
njohnston_Ah thanks :-)16:24
mlavalleyeah, tidwellr did a lot of work in IPAM code a couple of yeards ago16:24
mlavalleand gryf was probably with John Bellamaric's group16:25
mlavalleand they also did great work in IPAM16:25
mlavalleok, let's move on16:26
mlavalleI think that at this point what we need is data16:26
mlavalleto start gleaning insight16:26
mlavalleand to get to that point we need to finish our action items16:26
mlavalledo we agree?16:26
mlavalleso let's focus on concluding our action items16:27
mlavalleand we can re-take the discussion next meeting16:27
njohnston_sounds like a plan!16:27
slaweqok for me :)16:27
mlavalleok, guys, thanks for attending16:28
rubasovthank you guys16:28
njohnston_thanks all16:28
*** openstack changes topic to "OpenStack Meetings ||"16:28
openstackMeeting ended Mon Nov  5 16:28:42 2018 UTC.  Information about MeetBot at . (v 0.1.4)16:28
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