Tuesday, 2017-04-18

« Monday, 2017-04-17 Index Wednesday, 2017-04-19 »
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openstackgerritSergey Galkin proposed openstack/performance-docs master: Add shaker tesst results for cluster in upgrade  https://review.openstack.org/45727411:40
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openstackgerritSergey Galkin proposed openstack/performance-docs master: Add shaker tesst results for cluster in upgrade  https://review.openstack.org/45727413:11
openstackgerritSergey Galkin proposed openstack/performance-docs master: Add shaker test for cluster in upgrade  https://review.openstack.org/45727413:16
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DinaBelova#startmeeting Performance Team15:30
openstackMeeting started Tue Apr 18 15:30:00 2017 UTC and is due to finish in 60 minutes.  The chair is DinaBelova. Information about MeetBot at http://wiki.debian.org/MeetBot.15:30
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.15:30
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openstackThe meeting name has been set to 'performance_team'15:30
rcherrueauo/15:30
DinaBelovarcherrueau good evening sir :)15:30
DinaBelovatovin07 akrzos o/15:30
tovin07hello o/15:30
akrzosDinaBelova: o/15:30
DinaBelovalet's get started I guess :)15:31
DinaBelova#topic Action Items15:31
DinaBelovalast time we had only one action item on rcherrueau15:31
rcherrueauhum ...15:31
DinaBelovaregarding adding new testing methodology to the perf docs15:31
rcherrueauongoing :)15:31
DinaBelovayeah, I though so as well :)15:31
DinaBelovaso let's keep it :)15:31
DinaBelova#action rcherrueau add OpenStack testing under networking delays (e.g. multisite deployment) methodology to performance docs (openstack under WAN)15:32
DinaBelova#topic Current progress on the planned tests15:32
DinaBelovain the meanwhile rcherrueau please share your current progress :)15:32
rcherrueauWe have our first results :)15:32
DinaBelovayay :)15:32
rcherrueauThe deployment model we use is always the same: control, network and volume services are on the same nodes. computes are on dedicated nodes.15:32
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rcherrueauThen, we add latency between computes and the control node, and run Rally scenarios.15:32
rcherrueauThe latency variations are: 10, 25, 50, 100 and 150ms.15:33
rcherrueauFirst experiments show that a bigger latency implies a longer VM boot time and delete time.15:33
rcherrueauThis was expected. Here are some results: At 10, the average boot time is 22 sec, whereas at 150 it is 30 sec.15:33
rcherrueauRespectively 5 sec and 8 sec for delete time.15:33
DinaBelovayeah, this looks expected15:33
rcherrueauI expect the time difference during boot comes from Glance. No idea for the delete time.15:33
rcherrueauexcept oslo_messaging communications15:34
rcherrueauI can say more soon, because I used OSProfiler at the same time to produce traces.15:34
rcherrueauI have to dig into that and make a diff between two OSProfiler traces to see which functions are responsible for this difference.15:34
DinaBelovacool, this should give us specific place15:34
rcherrueauyep15:34
rcherrueauFor next week I plan to test neutron and I also wanna see how latency affects OpenStack when you have many clients and thus many messages in the bus (by varying concurrency in Rally).15:34
rcherrueauIf I have the time, I also wanna run Shaker.15:35
rcherrueauThat's all for Inria15:35
DinaBelovaack, thank you sir15:35
DinaBelovathanks again15:35
DinaBelovaakrzos, sir, do you have any news regarding the gnocchi testing?15:35
akrzosYeah continuing to try and scale up15:36
akrzosHit an issue where gnocchi lost coordinator on one controller15:36
akrzosthus if thats 3 controllers15:36
akrzosyou loss 1/3 of your capacity15:36
akrzosnot sure why that occured yet15:37
akrzosbeen able to get ~5k instances15:37
akrzosstill trying to get to 10k15:37
DinaBelovado data from the monitoring? can't it be some overload somewhere?15:37
akrzosalso remvoed the collector15:37
akrzosbut now looks like rpc settings not necessarily optimal for agent-notification15:37
akrzosand the gnocchi api to receive so many requests15:37
akrzosnot really sure from the monitoring other than it's easily fixable with restarting the metricd processes15:38
akrzosbut you have to catch it15:38
DinaBelovaokay, what's your current feeling? Do you think it's still possible to reach 10k?15:39
akrzosthere is plenty of resources still on this setup its getting the services to use it15:39
akrzosi have like 4 days now to figure it out15:39
akrzosso probably not likely15:40
akrzosunfortunately15:40
DinaBelova:(15:40
DinaBelovathat's sad, but let's hope you'll overcome this issue15:40
* akrzos fingers crossed15:40
DinaBelovatrue15:40
DinaBelovaok, so from mirantis side I was able to confirm that we're switching to Mirantis Cloud Platform (MCP) usage in our scale and performance tests15:41
DinaBelovathis is new experience for us, so we need to learn all tips and tricks first :)15:41
DinaBelovabefore going to the tests themselves15:41
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DinaBelovaso I suspect in nearest future we'll be trying to deploy it against various scale and create automatizations around this process with usual set of baseline tests run against it15:42
DinaBelovaso I suspect my updates won't be really interesting in next month or so :D15:43
DinaBelovaI think that's all from my side15:43
DinaBelova#topic Open Discussion15:43
DinaBelovatovin07 anything to talk about?15:44
tovin07yes15:44
* tovin07 getting link15:44
tovin07#link Raaly + OSprofiler https://review.openstack.org/#/c/456278/15:45
* DinaBelova adds this change to the review list15:45
tovin07Last week, Rally PTL create a spec for this feature15:45
tovin07rcherrueau had some comment in this patch already15:45
rcherrueauI wrote a small comment on this one on the form. But, on the basis this is really good.15:46
DinaBelovasadly I did not take a look on it so far15:46
DinaBelovabut will do15:46
tovin07besides, I tried some test with rally (with OSprofiler enabled) to measure overhead of OSprofiler in devstack environment15:47
tovin07*tests15:47
DinaBelovatovin07 oh, interesting15:47
DinaBelovaI suspect the influenct depends much on the chosen storage background15:47
DinaBelovatovin07 what is your current feeling on this?15:48
tovin07currently, I try with redis15:48
tovin07with some small tests, I saw that it take about 0 -> 7% overhead in testing time15:49
tovin07with zero-optimization, I think it’s a good result :D15:49
DinaBelovahow does it depend on the trace points number?15:50
DinaBelovais the dependency linear?15:50
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tovin07I did not have the detail answer for this :/15:51
DinaBelovaok, please keep us updated :)15:51
tovin07yup15:51
tovin07that’s all from me this week15:52
DinaBelovatovin07 thank you15:52
tovin07How your Easter?15:52
DinaBelovaok, anything else to cover? rcherrueau akrzos?15:52
DinaBelovatovin07 fine, thanks :)15:52
rcherrueaunop15:52
DinaBelovaok, so thanks everyone for joining today, let's have a good week :)15:52
DinaBelovabye!15:52
tovin07thanks15:52
tovin07:D15:52
DinaBelova#endmeeting15:52
openstackMeeting ended Tue Apr 18 15:52:56 2017 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)15:52
openstackMinutes:        http://eavesdrop.openstack.org/meetings/performance_team/2017/performance_team.2017-04-18-15.30.html15:53
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/performance_team/2017/performance_team.2017-04-18-15.30.txt15:53
openstackLog:            http://eavesdrop.openstack.org/meetings/performance_team/2017/performance_team.2017-04-18-15.30.log.html15:53
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