Definitions for "Uptime "
Uptime periodically requests a page from your Web server. If the site is unreachable, it sends you an email, followed by another when it becomes reachable again.
Measure of the time period which the web server has been online. For example, a server can have an uptime of 100 days - meaning it has not failed during the last 100 days and has ran non-stop during that period. Can also be expressed in percentages. Example: uptime of 99.9%. See SLA Back to up
Time during which something is functioning or operational.
Keywords:  load, cpu, average, section, display
Display system uptime and average load, see the section called "Displaying process information" and the section called "CPU resources".
Display system uptime and average load, see Section 4.1.4 and Section
A state in which your attention is mainly external, and you feel very alert and resourceful.
Keywords:  long, system
uptime show how long the system has been up