[pypy-dev] Jitviewer and performance tuning

Hi, I converted a long running program (~52k LOC) from python 2.7 to python 3.8. I run my tests on Window 10 (64) against pypy 3.8 (7.3.7) and cpython 3.8. Now I'm profiling the code with cProfile + gprof2dot. I noticed that increasing PYPY_GC_NURSERY improved the program's performance, but it's s

[pypy-dev] Performance tuning, GC logs

Hi, What's the recommended way to improve my program's performance, in particular wrt garbage collection? I see jitviewer and vmprof, but I'm not sure if either is still maintained. I've noticed speed improvements after playing with the gc nursery size, but that was trial-and-error. Thanks. Albe