carterkozak commented on issue #273: LOG4J2-2606: Substantially improve async logging performance under heavy load URL: https://github.com/apache/logging-log4j2/pull/273#issuecomment-494816763 The WaitStrategy appears to be designed to awaken all producer threads each time an event from the queue is consumed. With more blocked threads, there will be more wakeups and CPU churn. The more I think about this, the more I like the idea of a semaphore with configurable permits (default = 1 based on benchmarks) over my current mutex approach. That will allow us to optimize throughput in cases that I haven't fully considered while reducing the risk of N spinning threads. Otherwise there's not much reason to allow WaitStrategy to be configured at all.
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