Nbr of threads started by JNI_CreateJavaVM()

Question

When I call JNI_CreateJavaVM() on a 24 cores machine with 32GB using Ubuntu 10.10 gcc, it starts 26 threads. It seems like an overkill. Where is the number of threads created can be set? Thank you.

Answer 1

If you don't want to use all cores, you can explicitly set the thread affinity of your process via sched_set_affinity() . (Windows has a similar mechanism).