Check_load

[Sandeep Narasimha Murthy]

Hi,

So, does load average: 0.35, 0.47, 0.53, mean there are only 0.53 jobs
running and waiting over the last 15 minutes ? executing TOP in the
shell shows me atleast 15 different processes..

If at the same time, the CPU Usage is 100%, what does this mean ? 0.53
jobs is consuming 100% of the CPU ?

It appears, that I am posing questions beyond the context of Nagios so I
will stop here :) appreciate though any more clarifications..

Regards,

sg

-----Original Message-----
From: nagios-users-admin at lists.sourceforge.net
[mailto:nagios-users-admin at lists.sourceforge.net] On Behalf Of Tiernan,
Michael C.
Sent: quarta-feira, 10 de Maio de 2006 14:43
To: nagios-users at lists.sourceforge.net
Subject: RE: [Nagios-users] Check_load

On Behalf Of Derek J. Balling
	Sent: Wednesday, May 10, 2006 6:52 AM
	To: nagios-users at lists.sourceforge.net
	Subject: Re: [Nagios-users] Check_load

> "load average" is the number of processes (average) in the
> wait state over a given period of time.

Actually, it's the number of processes available to be run, that
includes those running. (i.e. the Run queue).

A 20 processor machine with one job per processor and each processor
"running at 100%" is a load of 20 where the same machine, with the same
20 jobs running *and* 10 jobs waiting to run has a load of 30.

And as Mr Balling rightfully said, it's averaged over 1min, 5min, 15mins
by the OS itself.

Now, this is what I've found on Solaris machines and Red Hat Linux
machines along with the SGI machines I wrangle. It *is* possible that
some other OS defines it differently.
(a.k.a. "Never say Never.")
-- 
    << MCT >> Michael C Tiernan        UNIX Systems Admin II
    Charles Stark Draper Lab., Inc.
    555 Technology Square/MS #33
    Cambridge, MA 02139


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Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid0709&bid&3057&dat1642
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