Kernel Parameter MSGMNI

[Terry Gibbar]

What's the upper end recommendation for the msgmni kernel parameter with 512MB and 1024MB of memory in the server?

The help from withing SAM states that this parameter is memory limited.

[Rita C Workman]

I believe the high end is 50 on a ver 10.2 HPUX. And I think that is also the default value. If you set this value too low you will have the message queue fill up and then hit IPC errs.
Regards,

[Terry Gibbar]

Following are some current settings:

HP 10.20
msgmni 450 w/1024 MB
msgmni 200 w/512 MB

Both are around 90% utilized. I was wondering how high could set the parameters before the memory limitation became an issue.

[James R. Ferguson]

Terry:

Take a look at:

http://docs.hp.com/hpux/content/KCparams.OverviewAll.html

...JRF...