java - Is there any maximum limit to number of running threads in Linux? -


this question has answer here:

is there maximum limit number of running threads in linux? possible count total number of threads classes in java?

technically should use 2 x numberofphysicalcores threads optimal performance. this post describes maximum number of threads (thanks @gavriel finding :p)

next, number of running threads in current jvm:

public static void main(string[] args) throws ioexception, interruptedexception {     executorservice service = executors.newfixedthreadpool(4);     service.execute(new runnable() {         public void run() {             try {                 thread.sleep(1000);             } catch (interruptedexception e) {                 // todo auto-generated catch block                 e.printstacktrace();             }         }     });     system.out.println(thread.getallstacktraces().size());  }  o/p : 5

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