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I'm not sure I've ever heard of the JVM being used in trading level software before. I've gotten a broad but vague impression that custom applications are the

I'm not sure I've ever heard of the JVM being used in trading level software before. I've gotten a broad but vague impression that custom applications are the norm. No criticism, as I've only read others' accounts, but that sounds out of character.

HelloNurse 6y ago
Java or Clojure applications are "custom" too: custom code running in some kind of application server is more or less the same as custom code relying on libraries and frameworks in C or C++ or other leaner languages. What's "out of character" (nice euphemism!) is adopting state of the art automatic garbage collection technology, writing in a language that makes actual garbage collection practically unavoidable, and then expecting that garbage collection doesn't happen or happens accordingly to arbitrary expectations. The JVM is clearly inappropriate technology if latency is important: it can perform well in common cases and with a reasonable level of tuning effort, but other options simply do not have the threat of GC pauses.