Subject: Re: increasing share memory
To: None <>
From: Giles Lean <>
List: netbsd-users
Date: 03/03/2002 20:23:52
> >   options 	SHMMAXPGS=3D32768	# 1024 pages is the default
> Which are the advantadges of doing this?

If your applications need or want more shared memory this is the way
to give it to them.

Databases can be quite greedy for shared memory but may not use the
buffer cache efficiently, so allocating less memory to buffer cache
and more to shared memory is a win sometimes.  Like all performance
questions it's highly subject to OS, application, and workload. :-)