Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I just rebooted my system and right now Activity Monitor is showing over 500 threads running. Before I rebooted it was over 900. Is that normal?

share|improve this question
up vote 6 down vote accepted

That really depends on how many applications you have open and what Mac you have. I currently have 650 threads with minimal usage. As long as it doesn't affect your Mac's performance, it shouldn't be a problem.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.