Re: 2nd Level Buffer Cache

On 21.03.2011 17:54, Merlin Moncure wrote:
> Can't you make just one large mapping and lock it in 8k regions? I
> thought the problem with mmap was not being able to detect other
> processes (http://www.mail-archive.com/pgsql-general@postgresql.org/msg122301.html)
> compatibility issues (possibly obsolete), etc.

That mail is about replacing SysV shared memory with mmap(). Detecting 
other processes is a problem in that use, but that's not an issue with 
using mmap() to replace shared buffers.

--   Heikki Linnakangas  EnterpriseDB   http://www.enterprisedb.com