Re: initdb profiles

On Sun, Sep 11, 2005 at 12:15:01PM -0400, Greg Stark wrote:
> > It'd be nice to get out from under the fixed-size-shmem restriction, but
> > I don't know any very portable way to do that.  
> 
> Without knowing that part of the code at all it seems to me the logical
> approach would be to make the fsm steal its pages out of the shared buffers
> allocation. That is, you specify a total amount of shared memory to allocate
> and Postgres decides how much of it to use for shared buffers and how much for
> fsm.

FWIW, I know this is how DB2 does things, and I think Oracle's the same.
We probably still want some kind of limit so it doesn't blow the buffer
cache completely out.
-- 
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
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