Load / Stress Testing

[Tim Wescott_3]

Hello

I have a k360 running HP-UX 11i and Oracle 9i and users are complaining that the system is slow - It has quad processors and 3Gb of RAM.

I know the system is relatively old and that upgrading may be a suggestion from some of you, but are there any load or stress testing utilities that will monitor the system during normal operation and highlight bottle necks whether it's on disks, cpu's or whatever?

Any help / advice appreciated.
Thanks
Tim

[Geoff Wild · Accepted solution]

Well...you could use an utility like glance to monitor load.

Is the system swapping? IE - are you out of ram?

What is dbc_max_pct set to? if it is the default of 50%, then drop it...as you only need about 500MB for Buffer Cache....

Rgds...Geoff

[baiju_3]

hi ,

Server utilisation you can monitored using

top,
sar,
iostat ,
swapinfo,
netstat -s
glance and perfview (licensed)


Glance and Perfview are very good s/w and they are priced also.

See man pages for the OS first 4 OS commands for deatils.

Also "timex" command can be used along with dd to find out the disk performance delays during normal and peak hours .

Syntax
timex dd if=/dev/dsk/c?t?d? of=/dev/null bs=512 count=your count (no of blocks)

Note the time taken for teh command to complete during diff intervals for analysis.

You may also verify the kernal parameters and the buffer size allocated (in case disk related performance issue)


thx,
bl.

[Jean-Luc Oudart]

Hi

from Oracle prospective you should run the statspack report.

Regards
Jean-Luc

[Nobody's Hero]

An extra layer of software you could use, might want to try "LoadRunner" by mercury.
Available for trial download on the web.