Macintosh Terminal Pocket Guide

Name

uptime — stdin  stdout  - file  -- opt  --help  --version

Synopsis

uptime

The uptime command tells you how long the system has been running since the last boot, and displays the load average, a measure of how busy your processor is. If your Mac seems slow, run uptime and the load average will tell you if it’s due to heavy load on the processor:

➜ uptime
 10:54pm  up 8 days,  3:44,  3 users,  load average: 0.89,
1.00, 2.15

This information is, from left to right: the current time (10:54pm), system uptime (8 days, 3 hours, 44 minutes), number of users logged in (3), and system load average for three time periods: one minute (0.89), five minutes (1.00), and fifteen minutes (2.15). The load average is the average number of processes ready to run in that time interval.