Re: go for a script! / ex: PostgreSQL vs. MySQL - Mailing list pgsql-performance

>
> Yes, indeed, sysctl can tweak these values fairly adequately.
>
> Now, numbers of semaphors are not as readily tweaked; I wound up
> limited, the other day, when I tried setting values for...
>
>   kern.ipc.semmns
>   kern.ipc.semmni

Same.  Maybe that was the option I was thinking was read-only:

houston# sysctl kern.ipc.semmns
kern.ipc.semmns: 60
houston# sysctl -w kern.ipc.semmns=70
sysctl: oid 'kern.ipc.semmns' is read only
houston# sysctl kern.ipc.semmni
kern.ipc.semmni: 10
houston# sysctl -w kern.ipc.semmni=30
sysctl: oid 'kern.ipc.semmni' is read only

I like how they use oids :P

Chris