Re: Upper limit on number of buffers?

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