Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. 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
real    108m1.284s
user    108m51.617s
sys     307445734m57.875s

307445734 min 57.875s is something really went crazy. Linux kernel 3.1.5 x86_64. A pitty thing regarding this issue is it's hard to search on web since keywords are quite irrelevant to this very problem.

share|improve this question
Beware that there could be two times in your system, /usr/bin/time and possibly the bash built-in command (maybe other shells have one, too). So maybe the respectively other one works fine. Is it consistent behavior or a one-time thing? (Also there are other ways to measure things, e.g. Systemtap] – sr_ Dec 16 '11 at 13:24
@sr_, it's a built-in, usually. But nevermind, the reason is kernel, not user space. I'm in email exchange with kernel devs now, we'll see… – poige Dec 16 '11 at 19:49
@sr_, the issue's found. – poige Dec 18 '11 at 16:49
up vote 2 down vote accepted

BFS's bug.

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.