Yep that was what the critical loop trading components did (the ones w/ the models for buy/sell hooked up to the exchange feed). Completely disable GC and rest

Yep that was what the critical loop trading components did (the ones w/ the models for buy/sell hooked up to the exchange feed). Completely disable GC and restart it every day. Every line of code in those critical loops was pored over to make it as fast as possible. These days it is a lot of FPGA based stuff but I like to believe the JVM stuff is still running somewhere.