topic CPU load in Operating System - HP-UX

CPU load

Shakeer_1 — Fri, 15 Apr 2005 08:51:57 GMT

One of my superdome partition is allocated with single cpu. The CPU utilization is hardly 2%, implies CPU is 98% idle. My concern is the load average is always 4 or so. i did some diagnostic and found 4 or 5 processess always in run queue and hence the CPU load. Further to tune the performance need some inputs. Also do i get a performance tuning guide for HP-UX 11.11? Thanks in advance your response is appreciated.

Shakeer.

Re: CPU load

Lisa Callison — Fri, 15 Apr 2005 09:01:31 GMT

There is a good book by Sauers and Weygant (HP-UX Tuning and performance) which explains how to diagnose system performance fully. To start I would compare figures in glance and sar.

Re: CPU load

Pete Randall — Fri, 15 Apr 2005 09:02:06 GMT

Lots of performance tuning docs listed here:

http://www1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000069675210

Pete

Re: CPU load

Geoff Wild — Fri, 15 Apr 2005 10:37:45 GMT

Introduction to Performance Tuning:

http://www2.itrc.hp.com/service/cki/search.do?category=c0&docType=Security&docType=Patch&docType=EngineerNotes&docType=BugReports&docType=Hardware&docType=ReferenceMaterials&docType=ThirdParty&searchString=UPERFKBAN00000726&search.y=8&search.x=28&mode=id&admit=-1335382922+1104416273473+28353475&searchCrit=allwords

Rgds...Geoff

Re: CPU load

Shakeer_1 — Fri, 15 Apr 2005 10:43:29 GMT

Can anybody tell me what could be the problem, and how do i exactly go about this so that my system load comes down. I really dont find any good document from HP.

Re: CPU load

Lisa Callison — Mon, 18 Apr 2005 08:39:20 GMT

Its not that easy just to give you an answer, there are a number of factors involved. You should check other outputs in order to check your memory usage, your disk usage etc. What are the 4 or 5 processes always running? Do you have any zombies? etc...