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
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
