Question

Is there any open source findbugs detectors extensions, espcially for performance bugs, for low-latency? I didn’t find any meaningful extension beyond barebone findbugs impl.

Answer 1

I use the code analysis in IntelliJ It has many detections and auto-fixes.

I haven’t seen anything for low latency as such. Usually this means changing the code significantly to minimise the use of locks, or discarding objects.

Using a commercial profiler is the best start. Create some micro-benchmarks for your specific use case. A code review of the critical path is useful and I would add nano-second time stamps which can be recorded in production see see how long each stage is actually taking. esp if you want less than 100 micro-second latencies.