Question for time command - Unix版

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Unix版 - Question for time command

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h*********s
发帖数: 14

I am using "time" command to check the running time for my C program. I got
the following info:
3186.71s real 3183.12s user 0.79s system
I checked the manual page for time command but still a little bit confused
about what real, user and system mean. My impression is real actually is the
total elapsed time and real roughly equal to user + system? Am I right?
Any comments are highly appreciated!

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