interpreting uptime output
jerrymc at msu.edu
Thu Mar 29 18:18:13 UTC 2007
On Thu, Mar 29, 2007 at 08:00:33PM +0200, Laszlo Nagy wrote:
> From the manual:
> > uptime -- show how long system has been running
> > uptime
> > 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
> > 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?
They are processes waiting to be run and/or currently running.
Most things pop in and out so quickly that they are hardly noticable.
But their bits of time add up.
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