nmbclusters and nmbufs

Jack L. Stone jackstone at sage-one.net
Tue Aug 19 06:23:26 PDT 2003

At 02:46 PM 8.19.2003 +0200, Alex de Kruijff wrote:
>On Tue, Aug 19, 2003 at 11:53:57AM +0400, Varshavchick Alexander wrote:
>> Hi,
>> Can anybody advise me please if I want to increase nmbclusters option in
>> kernel, can I just type
>> 	sysctl kern.ipc.nmbclusters="16384"
>> without rebooting the server, or is the only way to set the NMBCLUSTERS
>> option in kernel, install the new kernel and reboot?
>These variable are normaly readonly, so I think you do need to reboot.
>> And secondly, also I need to increase nmbufs kernel option, but there
>> seems to be no such option in LINT, what should I tweak?
>> 	sysctl kern.ipc.nmbufs="32768" without rebooting
>> or
>> 	kern.ipc.nmbufs="32768" in /boot/loader.conf and reboot?
>It does exist: options         NMBUFS=4096.
>You seen to be low on a lot of resources. It could be an idee to set 
>``maxusers'' to a higher setting. These days a lot of varibles base 
>there value on maxusers.
If using 4.5++, then set the "maxusers=0" in the kernel and the system will
calculate its own needs dynamically..... up to 4.4, maxusers were a "32"
default in the generic kernel.

Best regards,
Jack L. Stone,

SageOne Net
jackstone at sage-one.net

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