topic Re: msgmnb kernel parameter ? in Operating System - HP-UX

msgmnb kernel parameter ?

Juquin_3 — Mon, 28 Feb 2005 09:47:17 GMT

Hi ,
does someone know this kernet parameter ?
I would like to change it with SAM guide but the value remains unchanged to 65535 !! instead of 1 898 496 (new value ) .
I change the value with /stand/system file =>the value remains always unchanged !
My OS is 11.00 , 2 CPU , 1 Gb of memory .
Is it possible to change it ? Do i must use a formula to put the new value ?
Thanks for your help ,

Re: msgmnb kernel parameter ?

harry d brown jr — Mon, 28 Feb 2005 09:57:58 GMT

sam > Kernel Configuration > Configurable Parameters > Help > Configurable Kernel Parameters:::>

Acceptable Values:

Minimum: 0
Maximum: min(msgseg * msgssz, 65535) bytes
Default: 16384 bytes

Specify integer value. For more information, see Specifying Parameter Values.

live free or die
harry d brown jr

Re: msgmnb kernel parameter ?

Pete Randall — Mon, 28 Feb 2005 09:58:45 GMT

msgmnb has to be greater than msgmax and less than or equal to msgssz times msgseq. Would that be limiting you?

Pete

Re: msgmnb kernel parameter ?

A. Clay Stephenson — Mon, 28 Feb 2005 09:59:13 GMT

65535 (64K) is the maximum allowed value for this parameter. You can reduce it but you cannot increase it beyond 64K. Directly editing /stand/system is not the preferred method. You should use the kmtune command and you must still then build a new kernel for the changes to take effect.