topic Re: wlm on a multiple cpu server in Operating System - HP-UX

wlm on a multiple cpu server

Shelley_4 — Thu, 15 Aug 2002 06:56:50 GMT

Hello,
I am testing wlm on a server that has more than one cpu. What is the best way to configure wlm so that I get the best performance?

Thanks, Shelley.

Re: wlm on a multiple cpu server

melvyn burnard — Thu, 15 Aug 2002 07:05:12 GMT

I am afraid that you have asked the "How long is a piece of string" question.
You would need to investigate what your application requirements are, your user requirements etc to even begin to come up wth a configuration.
I suggest you go take a lookj here for some possible ideas:
http://resourcemanagement.unixsolutions.hp.com/WaRM/wlm/casestudies.html

Re: wlm on a multiple cpu server

Dan Herington — Mon, 19 Aug 2002 13:42:56 GMT

Hi Shelley,

Melvyn is right - this question is pretty open ended. I can make a couple of suggestions though. I would recommend you start with a fairly simple config and then tweak as needed. First prioritize your workloads and decide how you want to allocate min and max amount of CPU for each workload. Your maxes can be high, but make sure the total or your min's leaves some shares to be moved around by WLM. I sould suggest using the usage controllers initially and then add metrics later as you get more comfortable with how it works. You can set all this up using the config wizard (wlmcw), assuming you are using 2.0.

Hope this helps.
Dan