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Re: Re: [HACKERS] Patch für MAP_HUGETLB for mmap() shared memory

Andres Freund <andres@2ndquadrant.com>

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From: Andres Freund <andres@2ndquadrant.com>
To: Bruce Momjian <bruce@momjian.us>
Cc: Christian Kruse <cjk+postgres@defunct.ch>, pgsql-hackers@postgresql.org
Date: 2013-06-29T06:24:30Z
Lists: pgsql-hackers 
Hi,

On 2013-06-28 23:03:22 -0400, Bruce Momjian wrote:
> Did we decide against specifying huge pages in Postgres?

I don't think so. We need somebody to make some last modifications to
the patch though and Christian doesn't seem to have the time atm.

I think the bigger memory (size of the per process page table) and #cpus
(number of pg backends => number of page tables allocated) the more
imporant it gets to implement this. We already can spend gigabytes of
memory on those on big systems.

Greetings,

Andres Freund

-- 
 Andres Freund	                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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