[infinispan-dev] DataContainer performance review

Hi, I would like to review recent DataContainer performance claims and I was wondering if any of you have some spare cycles to help me out. I've added a test[1] to MapStressTest that measures and contrasts single node Cache performance to synchronized HashMap, ConcurrentHashMap and BCHM variants. Performance for container BoundedConcurrentHashMap (LIRS) Average get ops/ms 1063 Average put ops/ms 101 Average remove ops/ms 421 Size = 480 Performance for container BoundedConcurrentHashMap (LRU) Average get ops/ms 976 Average put ops/ms 306 Average remove ops/ms 521 Size = 463 Performance for container CacheImpl Average get ops/ms 94 Average put ops/ms 61 Average remove ops/ms 65 Size = 453 Performance for container ConcurrentHashMap Average get ops/ms 484 Average put ops/ms 326 Average remove ops/ms 376 Size = 49870 Performance for container SynchronizedMap Average get ops/ms 96 Average put ops/ms 85 Average remove ops/ms 96 Size = 49935 I ran MapStressTest on my Macbook Air, 32 threads continually doing get/put/remove ops. Fore more details see[1]. If my measurements are correct Cache instance seems to be capable of about ~220 ops per millisecond on my crappy hardware setup. As you can see performance of the entire cache structure does not seem to be much worse from a SynchronizedMap which is great in one hand but also leaves us some room for potential improvement since concurrent hashmap and BCHM seem to be substantially faster. I have not tested impact of having a cache store for passivation and I will do that tomorrow/next week. Any comments/ideas going forward? [1] https://github.com/infinispan/infinispan/pull/404