Horton

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

Thomas Munro <thomas.munro@enterprisedb.com>

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From: Thomas Munro <thomas.munro@enterprisedb.com>
To: "REIX, Tony" <tony.reix@atos.net>
Cc: 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: 2019-02-01T15:46:52Z
Lists: pgsql-hackers 
On Sat, Feb 2, 2019 at 2:23 AM REIX, Tony <tony.reix@atos.net> wrote:
> Hummmm I have an issue here:
>
> # cd /home2/freeware/src/packages/BUILD/postgresql-11.1/64bit/doc/src/sgml
> # gmake
> /opt/freeware/bin/xmllint --path . --noout --valid postgres.sgml
> /opt/freeware/bin/xsltproc --path . --stringparam pg.version '11.1'  stylesheet.xsl postgres.sgml
> Makefile:135: recipe for target 'html-stamp' failed
> gmake: *** [html-stamp] Segmentation fault (core dumped)
>
> That reaches an issue in  /opt/freeware/bin/xsltproc , on AIX.
> I never had this I think.

Strange.

By the way, the patches are for master (12-to-be), but I guess they'll
work fine on 11.x too.

> About testing it, I guess that I'll have to add:
>
>    huge_pages = on
>
> in the postgresql.conf file. Correct ?

Correct.

-- 
Thomas Munro
http://www.enterprisedb.com

Commits

  1. Add shared_memory_type GUC.

  2. Dramatically reduce System V shared memory consumption.