On 12/05/2013 07:40 AM, Greg Stark wrote:
> On Thu, Dec 5, 2013 at 2:54 PM, Claudio Freire <klaussfre...@gmail.com> wrote:
>> That's a bad idea in the current state of affairs. MM files haven't
>> been designed for that usage, and getting stable performance out of
>> that will be way too difficult.
> I'm talking about long-term goals here. Either of these two routes
> would require whole new kernel interfaces to work effectively. Without
> those new kernel interfaces our current approach is possibly the best
> we can get.

Well, in the long run we'll probably be using persistent RAM.  And the
geeks who manage that have already said that MMAP is a bad interface for
persistent RAM.  They haven't defined a good one, though.

Josh Berkus
PostgreSQL Experts Inc.

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