how many threads to run in java?

Question

I had this brilliant idea to speed up the time needed for generating 36 files: use 36 threads!! Unfortunately if I start one connection (one j2ssh connection object

Answer 1

One way to tune the numebr of threads to the size of the machine is to use

int processors = Runtime.getRuntime().availableProcessors();
int threads = processors * N; // N could 1, 2 or more depending on what you are doing.
ExecutorService es = Executors.newFixedThreadPool(threads);