I've noticed similar things while profiling my tests - making a large static allocation or bumping GOGC=1000 can cause them to run more than 2x faster (my favor

I've noticed similar things while profiling my tests - making a large static allocation or bumping GOGC=1000 can cause them to run more than 2x faster (my favorite took a 12 second test suite and dropped it to about 2.5 seconds). So much time is spent assisting the GC to keep memory at like an 8-12mb range, as if that small of a heap was somehow the most important thing Go could be doing with the CPU.