On 05/02/2013 05:52 PM, Bruce Momjian wrote:
> On Sat, Apr 27, 2013 at 04:53:24PM -0700, Josh Berkus wrote:
>> In 9.3, PostgreSQL has switched from using SysV shared memory to using
>> Posix shared memory and mmap for memory management. This allows easier
>> installation and configuration of PostgreSQL, but means that we need our
>> users to rigorously test and ensure that no memory management issues
>> have been introduced by the change.
>
> I am not aware of any additional memory testing available, unless you
> are talkinga about mmap() perhaps being slower than SysV shared memory
> on some operating systems. Is that it?
Yeah, or something we didn't anticipate, like Linux swapping the RAM out
when we're still using it.
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com