RE: Shared Memory: How to use SYSV rather than MMAP ?

REIX, Tony <tony.reix@atos.net>

From: "REIX, Tony" <tony.reix@atos.net>
To: Alvaro Herrera <alvherre@2ndquadrant.com>
Cc: Thomas Munro <thomas.munro@gmail.com>, Andres Freund <andres@anarazel.de>, Robert Haas <robertmhaas@gmail.com>, Pg Hackers <pgsql-hackers@postgresql.org>, "EMPEREUR-MOT, SYLVIE" <sylvie.empereur-mot@atos.net>
Date: 2019-10-01T15:57:46Z
Lists: pgsql-hackers
Hi,
I've been able to rebuild the 12rc1 on AIX 7.2 with my old patches, except the one dealing with shared memory for sure.
Tests are running.
I'll look at the proposed patch tomorrow.

Regards,

Tony
________________________________
De : Alvaro Herrera <alvherre@2ndquadrant.com>
Envoyé : vendredi 27 septembre 2019 14:39
À : REIX, Tony <tony.reix@atos.net>
Cc : Thomas Munro <thomas.munro@gmail.com>; Andres Freund <andres@anarazel.de>; Robert Haas <robertmhaas@gmail.com>; Pg Hackers <pgsql-hackers@postgresql.org>; EMPEREUR-MOT, SYLVIE <sylvie.empereur-mot@atos.net>
Objet : Re: Shared Memory: How to use SYSV rather than MMAP ?

Hi Tony,

On 2019-Sep-27, REIX, Tony wrote:

> Hello Thomas, Alvaro,
>
> Sorry for the late answer, I missed your message of September 10. (I'm working on several different projects in parallel.)
> Let me talk with Sylvie ASAP and see when I will be able to test it, probably next week, Tuesday. Is that OK for you?

Sure -- I'm inclined to push this patch in state Needs Review to the
November commitfest in this case.

--
Álvaro Herrera                https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.2ndQuadrant.com%2F&amp;data=02%7C01%7Ctony.reix%40atos.net%7C1a83e1b688064d2068c808d7434f8ac5%7C33440fc6b7c7412cbb730e70b0198d5a%7C0%7C0%7C637051881216955303&amp;sdata=YwnDQn4%2Finz3eT7clMl7fKK6WEKHtTebqcPbNy4N8ms%3D&amp;reserved=0
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Commits

  1. Add shared_memory_type GUC.

  2. Dramatically reduce System V shared memory consumption.