topic load average in top output in Operating System - HP-UX

load average in top output

Shivkumar — Tue, 18 Oct 2005 17:46:14 GMT

Dear Sirs,

We run hpux model 9000/800/L3000-7x server. It is a 4 cpu box. The top command output is:

Load averages: 0.96, 1.00, 0.96

376 processes: 263 sleeping, 113 running
Cpu states:
CPU LOAD USER NICE SYS IDLE BLOCK SWAIT INTR SSYS
0 1.12 60.2% 0.0% 19.7% 20.1% 0.0% 0.0% 0.0% 0.0%
1 0.95 45.1% 0.0% 31.9% 23.0% 0.0% 0.0% 0.0% 0.0%
2 1.16 51.0% 0.0% 27.8% 21.3% 0.0% 0.0% 0.0% 0.0%
3 0.60 35.4% 0.0% 52.0% 12.6% 0.0% 0.0% 0.0% 0.0%
--- ---- ----- ----- ----- ----- ----- ----- ----- -----
avg 0.96 47.9% 0.0% 32.8% 19.3% 0.0% 0.0% 0.0% 0.0%

Is load average showing good or some issue ?
Also the other readings showing okay ?

Thanks,
Shiv

Re: load average in top output

Joseph Loo — Tue, 18 Oct 2005 20:40:23 GMT

hi shiv,

the load looks ok with me. i would not be too worry for now.

for performance issue, refer to this guide, Document ID, KBRC00000947 :

http://www2.itrc.hp.com/service/cki/search.do?category=c0&prevQueryString=&mode=id&searchString=KBRC00000947&searchCrit=allwords&docType=Security&docType=Patch&docType=EngineerNotes&docType=BugReports&docType=Hardware&docType=ReferenceMaterials&docType=ThirdParty&dateRange=all&search.x=7&search.y=10

regards.

Re: load average in top output

Arunvijai_4 — Tue, 18 Oct 2005 22:28:06 GMT

It looks OK to me, Don't worry about that..

The book UNIX Power Tools [POL97], tell us on p.726 The CPU:

The load average tries to measure the number of active processes at any time. As a measure of CPU utilization, the load average is simplistic, poorly defined, but far from useless.

The load average is the sum of the run queue length and the number of jobs currently running on the CPUs.

-Arun

Re: load average in top output

Yogeeraj_1 — Tue, 18 Oct 2005 23:27:30 GMT

hi shiv,

Average looks ok!

1.12 + 0.95 + 1.16 + 0.60 = 3.83

3.83 / 4 = 0.96

Glance would be able to clarify this more.

regards
yogeeraj

Re: load average in top output

Muthukumar_5 — Wed, 19 Oct 2005 01:39:02 GMT

Top may be not correct always. Use glance to find exact cpu %.

To find individual cpu% for process then,

# UNIX95= ps -efo pcpu,pid,comm

hth.

Re: load average in top output

VIKAS AGRAWAL — Wed, 19 Oct 2005 02:12:09 GMT

Hi ,

Your system load looks to be ok , Avg is 0.96 .

with a idle 33% .

vikas

Re: load average in top output

Bharat Katkar — Wed, 19 Oct 2005 02:19:24 GMT

Well not since it looks okay ....have a look at this performance cookbook :)

Regards,