Hi Sajith, Could you please provide some details about how you are actually doing these performance tests. For example, what is deployment model? How are you generating these workloads/events?
Thanks Malith On Thu, Jun 23, 2016 at 11:28 AM, Sajith Ravindra <[email protected]> wrote: > Hi all, > > This is to give an update on the performance study we conducted on > is-analytics server on last. The idea of this test round was to evaluate > the performance of Siddhi queries used for is-analytics, therefore we > disabled event stream persistence and spark for this test. > > This test was conducted on a standalone DAS server with Xms2g and Xmx4g. > > On the initial round when input TPS reaches ~20K, the server went OOM > after consuming around 1M events. The reason for this was the events > accumulated inside 7 1min time batch windows used inside. To overcome this > we implemented an extension to siddhi which allows us to avoid duplicating > the window. > > After removing duplicate windows the server was able to consume events at > a rate of ~22K, but there were fluctuations (see the graph bellow) of the > throughput. With analysis, we found that intense GC causes this. We suspect > that this intense GC is caused when expiring a large number of events > accumulated inside 1-minute window. To overcome this we are planning to > batch events in 1-second windows and then accumulate 1second batches in 1 > min window in order to stop accumulating a large number of events. > > > As the next steps, we are planning to test the performance with event > stream persistence and then move on to check the performance in DAS minimum > HA mode. > > We will keep updating this thread with our findings. > > Please share your thought, suggestions on this. > > Thanks > *,Sajith Ravindra* > Senior Software Engineer > WSO2 Inc.; http://wso2.com > lean.enterprise.middleware > > mobile: +94 77 2273550 > blog: http://sajithr.blogspot.com/ > <http://lk.linkedin.com/pub/shani-ranasinghe/34/111/ab> > > _______________________________________________ > Architecture mailing list > [email protected] > https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture > > -- Malith Jayasinghe WSO2, Inc. (http://wso2.com) Email : [email protected] Mobile : 0770704040 Lean . Enterprise . Middleware
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