On Wed, 2013-02-20 at 17:42 +0100, Emmanuel Kasper wrote:
> Hello
>
> The default number of semaphores sets of NetBSD ist too low for Postgres
> (tested on 9.1)
>
> I would suggest replacing the sentence:
>
> In NetBSD 5.0 and later, IPC parameters can be adjusted using sysctl,
> for example:
>
> $ sysctl -w kern.ipc.shmmax=16777216
>
>
> with the following:
>
> The default settings are only suitable for small installations. In
> NetBSD 5.0 and later, IPC parameters should be adjusted using sysctl,
> for example:
>
> $ sysctl -w kern.ipc.shmmax=16777216
> $ sysctl -w kern.ipc.semmni=256
> $ sysctl -w kern.ipc.semmns=512
In 9.3, the requirements for shared memory have changed, so this might
no longer be appropriate advice going forward.