Re: [infinispan-dev] Faster LRU

I haven't run the tests with concurrency level 512, as the total number of threads is only 100, but I suspect the old LRU still won't catch up with the new LRU's performance. It's interesting that in the writeOnMiss test the new LRU performance dropped when I increased the concurrency level from 32 to 128. I think it might be because the eviction.thresholdExpired() check in BCHM.attemptEviction() is done without a lock and so it could return true simultaneously for multiple threads - which will all proceed to wait on the segment lock and attempt eviction at the same time.