Sparc Solaris 10 load averages Post: 302810691

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Operating Systems Solaris Sparc Solaris 10 load averages Post 302810691 by jim mcnamara on Wednesday 22nd of May 2013 11:17:37 AM

05-22-2013

Registered User

Not necessarily. A very rough rule of thumb is keep those numbers under 2.0 most of the time. What you need to worry about more is a few individual processes eating lots of cpu.

prstat is your friend for this. What those numbers mean is this:
Assume you are going to the bank to do a transaction. When you get there, how many people are in front of you in the the line? So if you have to keep coming back to the line then how long, on average do you have to wait to get service. As those numbers grow it means you wait longer and longer for service. On systems running databases the db frequently uses a lot of resources, comapred with user processes, but it is designed to optimize the use of those resources. So it is common to see some cpu usage like the ones you have.

What exact performance problem do you have?

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LEARN ABOUT LINUX

getloadavg

GETLOADAVG(3)						     Linux Programmer's Manual						     GETLOADAVG(3)

NAME

       getloadavg - get system load averages

SYNOPSIS

       #define _BSD_SOURCE
       #include <stdlib.h>

       int getloadavg(double loadavg[], int nelem);

DESCRIPTION

       The  getloadavg() function returns the number of processes in the system run queue averaged over various periods of time.  Up to nelem sam-
       ples are retrieved and assigned to successive elements of loadavg[].  The system imposes a maximum of 3 samples, representing averages over
       the last 1, 5, and 15 minutes, respectively.

RETURN VALUE

       If the load average was unobtainable, -1 is returned; otherwise, the number of samples actually retrieved is returned.

VERSIONS

       This function is available in glibc since version 2.2.

CONFORMING TO

       Not in POSIX.1-2001.  Present on the BSDs and Solaris.

SEE ALSO

       uptime(1), proc(5), feature_test_macros(7)

COLOPHON

       This  page is part of release 3.27 of the Linux man-pages project.  A description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2007-12-08							     GETLOADAVG(3)