franz1981 edited a comment on issue #2494: ARTEMIS-2224 Reduce contention on LivePageCacheImpl URL: https://github.com/apache/activemq-artemis/pull/2494#issuecomment-454709952 @qihongxu What is worrying me is this > at most time it obtained a 3k~6k tps If the same test (same configuration) is performed using just 1 consumer I'm expecting (best case scenario) that it would have (3k-6k)/200 tps if: 1. the tps are dependent by the most demanding operation in the CPU flamegraph you've posted ie `ConcurrentAppendOnlyList:.get(index)` 2. the `ConcurrentAppendOnlyList:.get(index)` was happening in parallel assuming to have 200 threads available ie bringing a 200 x speedup over a single consumer case I suppose that 2 can't be true, so it really depends on the number of cores/threads available to execute such queries to `LivePageCache` IF such queries are performed in parallel. Do you have any idea of what's happening here? Which assumptions are correct/wrong? Just guessing if this process could be made much better/scalable just answering those questions :+1:
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