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Re: Postgres 8.x on Linux : how to use HugePages - Mailing list pgsql-general

From Boszormenyi Zoltan
Subject Re: Postgres 8.x on Linux : how to use HugePages
Date
Msg-id 4FA104D1.5010704@cybertec.at
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In response to Postgres 8.x on Linux : how to use HugePages  ("STERBECQ Didier" <didier.sterbecq@ratp.fr>)
Responses RE : Postgres 8.x on Linux : how to use HugePages
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Hi,

2012-05-02 11:28 keltezéssel, STERBECQ Didier írta:

We think of using Linux HugePages to isolate shared memory used by Postgres, hoping that we got more performance.

I see some souce code samples for doing that, but I do not see any information
        about compatibility :   Postgres 7.x, 8.x, 9.x
        about recommandations

Thanks by advance.
Didier Sterbecq.
Mail : didier.sterbecq@ratp.fr
if you are using a kernel older than 2.6.38, you can use this with LD_PRELOAD:
http://oss.linbit.com/hugetlb/

With 2.6.38 and up, HugePages are used automatically in giant allocations.

Best regards,
Zoltán Böszörményi

-- 
----------------------------------
Zoltán Böszörményi
Cybertec Schönig & Schönig GmbH
Gröhrmühlgasse 26
A-2700 Wiener Neustadt, Austria
Web: http://www.postgresql-support.de    http://www.postgresql.at/

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