| From: | Michael J Schout <mschout(at)gkg(dot)net> |
|---|---|
| To: | Joe Conway <joe(at)conway-family(dot)com> |
| Cc: | Hackers List <pgsql-hackers(at)postgresql(dot)org>, mlw <markw(at)mohawksoft(dot)com> |
| Subject: | Re: Upper limit on number of buffers? |
| Date: | 2000-12-29 17:29:21 |
| Message-ID: | Pine.LNX.4.10.10012291127170.5623-100000@galaxy.gkg-com.com |
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| Thread: | |
| Lists: | pgsql-hackers |
On Sun, 24 Dec 2000, Joe Conway wrote:
> Linux
>
> The default shared memory limit (both SHMMAX and SHMALL) is 32 MB in 2.2
> kernels, but it can be changed in the proc file system (without reboot). For
> example, to allow 128 MB:
>
> $ echo 134217728 >/proc/sys/kernel/shmall
> $ echo 134217728 >/proc/sys/kernel/shmmax
> You could put these commands into a script run at boot-time.
On redhat 6.2 I know that you can use /etc/sysctl.conf to do this as well.
Just add this to /etc/sysctl.conf.
kernel.shmall = 134217728
kernel.shmmax = 134217728
After this, your tunables will be restored every time that the system boots.
Mike
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