interpreting uptime output
Bill Moran
wmoran at potentialtech.com
Thu Mar 29 18:03:39 UTC 2007
In response to Laszlo Nagy <gandalf at designaproduct.biz>:
> From the manual:
> > NAME
> > uptime -- show how long system has been running
> >
> > SYNOPSIS
> > uptime
> >
> > DESCRIPTION
> > The uptime utility displays the current time, the length of time
> > the sys-
> > tem has been up, the number of users, and the load average of the
> > system
> > over the last 1, 5, and 15 minutes.
> This is great, except that it does not tell me what "0.5" means? Example:
>
> 1:41PM up 5 days, 2:22, 4 users, load averages: 0.36, 0.42, 0.51
>
> The only referenced material in the man page is w(1) which tells this:
>
> > The load average numbers give the number of jobs in the run queue
> averaged over 1, 5 and 15 minutes.
>
> What are those "jobs"? I guess they are not processes. What is that "run
> queue"? Which is better, the lower or the higher number?
Higher is a busier system.
See: http://en.wikipedia.org/wiki/Load_average
--
Bill Moran
http://www.potentialtech.com
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