Hello, I have such program: import time import thread def f(): global lock while True: lock.acquire() print thread.get_ident() time.sleep(1) lock.release() lock=thread.allocate_lock() thread.start_new_thread(f,()) thread.start_new_thread(f,()) time.sleep(60)
As you can see, I start two threads. Each one works in an infinite loop. Inside that loop it acquires lock, prints its own id, sleeps a bit and then releases lock. When I run it, I notice that only one thread works and the other one never has a chance to run. I guess it is because the thread don't have a chance to release the GIL - after it releases the lock, it almost immediately (in the very next bytecode command) reacquires it. I know I can put "time.sleep(0.01)" command after between release and reacquire, but it doesn't seem elegant - why should I make my program sleep instead of work? Is there any simple way to release the GIL? Like: lock.release() thread.release_gil() ? Thanks in advance! -- http://mail.python.org/mailman/listinfo/python-list
