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Isn't it like... literally just that one HFT company that did this? I've seen it pointed at for years, but afaik the vast majority use C++.
by staticassertion 4y ago
Isn't it like... literally just that one HFT company that did this? I've seen it pointed at for years, but afaik the vast majority use C++.
- kmarc 4y agoMany companies did this in the past. Nowadays Java, Go, etc GCed languages are still used but not for the hot path anymore. They are a couple million times slower than what we need.
- dabraham1248 4y agoNo. There's one that made noise about it, but I personally know more than one other from working on their code. Not going to name anyone because I'm not sure they want their tech decisions publicized. Also some performance-sensitive chunks of wall street itself (depending on how you define "wall street itself". And "performance sensitive" (what I worked on was more "high throughput" than "no pauses".).) run on java. TBF, I write a lot of java, so my perspective is probably biased, but I can assure you, it's out there.