Hi I wrote $subject using JMH and I committed the code to my GitHub repo [1].
Currently API Manager uses a Stack Object Pool for key validation clients and we noticed that there are lot contentions when trying to use the pool. Therefore we thought of writing a benchmark to compare the performance with other Object Pool implementations. Following are the results after running the benchmark with 100 threads. The command I used is "java -jar target/objectpools-0.0.1-SNAPSHOT.jar -t 100 -f 3 -wi 5 -i 10" # Run complete. Total time: 00:12:28 Benchmark (poolSize) Mode Cnt Score Error Units CommonsPool2GenericObjectPoolBenchmark.useObject 100 thrpt 30 2470759.779 ± 204309.885 ops/s CommonsPool2SoftReferenceObjectPoolBenchmark.useObject 100 thrpt 30 1305244.745 ± 57823.313 ops/s CommonsPoolGenericObjectPoolBenchmark.useObject 100 thrpt 30 2277105.922 ± 40957.282 ops/s CommonsPoolSoftReferenceObjectPoolBenchmark.useObject 100 thrpt 30 11163239.940 ± 449147.426 ops/s FastObjectPoolBenchmark.useObject 100 thrpt 30 30164548.113 ± 984247.958 ops/s FuriousObjectPoolBenchmark.useObject 100 thrpt 30 14279182.642 ± 115644.976 ops/s StackObjectPoolBenchmark.useObject 100 thrpt 30 5464597.797 ± 135726.389 ops/s StormpotBlazePoolBenchmark.useObject 100 thrpt 30 77752385.827 ± 3015457.000 ops/s StormpotQueuePoolBenchmark.useObject 100 thrpt 30 7670529.272 ± 283981.943 ops/s TestObjectBenchmark.expensiveObjectCreate N/A thrpt 30 101870.001 ± 2872.885 ops/s TestObjectBenchmark.simpleObjectCreate N/A thrpt 30 917400188.941 ± 20593977.714 ops/s ViburObjectPoolBenchmark.useObject 100 thrpt 30 5924114.964 ± 281625.445 ops/s For this benchmark, Stormpot Blaze Pool [2] has the highest throughput and it performs 14 times better than the Stack Object Pool, which is used in API Manager. Stormpot is also Apache licensed. When I was writing the benchmarks, I found out that Stormpot author also has written similar benchmarks [3]. But I continued with my project and benchmark code has more implementations. I also use latest versions of all object pool implementations. I'm writing a blog about this and planning to get results for different scenarios. I need to analyze latency results as well. I'll share those results in this mail thread. Thanks! Best Regards, [1] https://github.com/chrishantha/microbenchmarks/tree/master/objectpools [2] https://github.com/chrisvest/stormpot [3] https://github.com/chrisvest/object-pool-benchmarks -- Isuru Perera Associate Technical Lead | WSO2, Inc. | http://wso2.com/ Lean . Enterprise . Middleware about.me/chrishantha Contact: +IsuruPereraWSO2 <https://www.google.com/+IsuruPereraWSO2/about>
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