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kernal rebuild after memory and cpu upgrade

 
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Mandosa
Regular Advisor

kernal rebuild after memory and cpu upgrade

i have an rp5405 that i plan to upgrade from 2 to 4 cpu's. and from 4 to 8GB RAM. i'm running HP-UX 11.11. is a kernal tuning/rebuild necessary to take full advantage of the hardware upgrade.

thanks
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Patrick Wallek
Honored Contributor
Solution

Re: kernal rebuild after memory and cpu upgrade

Nothing is really required.

You may want to think about dbc_max_pct and some of the max*siz parameters and reset them if necessary. Other than that there is really nothing else to do.


IT_2007
Honored Contributor

Re: kernal rebuild after memory and cpu upgrade

And also check your swap and dump size and if they are low then create secondary swap and dumps (if needed).
A. Clay Stephenson
Acclaimed Contributor

Re: kernal rebuild after memory and cpu upgrade

One tunable that probably needs adjusting is dbc_max_pct. Now that your physical memory had doubled, you need to give some thought to the maximum size buffer cache you want. Somewhere between 800Mib-1600MiB should be a sweet spot for 11.11; you might consider setting bufpages to a non-zero value and thus implement a fixed size buffer cache.
If it ain't broke, I can fix that.
Mandosa
Regular Advisor

Re: kernal rebuild after memory and cpu upgrade

thanks!