We have done a performance analysis of APIM by running it on a single node (note: distributed setup will be considered later). The following are some key observations.
The deployment details and some discussion on the analysis results can be found in [1] 1) The probability density function of latencies (i.e. latency distribution) is right-skewed. As the concurrency increases, the skewness of this distribution decreases. Under low concurrency levels a large number of latencies lie in a relatively small range. As the concurrency increases we notice that there is an increase in the latency values which results in the skewness of the distribution to reduce. This behaviour is shown below. 2) The histogram of latencies also shows a behaviour similar to the above (see the figures below) 3) As we increase the concurrency there is an increase in variance/standard deviation of latency values. See the figure below 4) The latency percentile values and the average latency increase linearly with the increasing the concurrency. 4) As the percentile approaches 100% we notice that there is a rapid increase in the percentile value. [1] https://medium.com/@malith.jayasinghe/on-the-latency-distribution-of-a-middleware-server-a-case-study-based-on-wso2-api-manager-c19097414f4f#.bsms26pf8 On Tue, Jun 7, 2016 at 8:46 PM, Malith Jayasinghe <[email protected]> wrote: > We are currently doing a performance analysis of WSO2 APIM 2.0. The aim of > this effort is to get an in-depth understanding of how the performance > (latency in particular) of API manager under different > conditions/scenarios. The results of such an analysis will enable us to > better understand how the system behaves under specific conditions and > provide more accurate answers to questions relating to the performance. In > this thread we will provide a summary of our findings (as we progress in > this project). > > > -- > Malith Jayasinghe > > > WSO2, Inc. (http://wso2.com) > Email : [email protected] > Mobile : 0770704040 > Lean . Enterprise . Middleware > -- Malith Jayasinghe WSO2, Inc. (http://wso2.com) Email : [email protected] Mobile : 0770704040 Lean . Enterprise . Middleware
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