Horton

Re: Perfomance degradation 9.3 (vs 9.2) for FreeBSD

Andres Freund <andres@2ndquadrant.com>

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From: Andres Freund <andres@2ndquadrant.com>
To: Magnus Hagander <magnus@hagander.net>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Palle Girgensohn <girgen@freebsd.org>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Robert Haas <robertmhaas@gmail.com>, Francois Tigeot <ftigeot@wolfpond.org>
Date: 2014-04-21T15:43:46Z
Lists: pgsql-hackers

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  1. Add shared_memory_type GUC.

Hi,

On 2014-04-21 17:39:39 +0200, Magnus Hagander wrote:
> But do we really want a *guc* for it though? Isn't it enough (and in fact
> better) with a configure switch to pick the implementation when multiple
> are available, that could then be set by default for example by the freebsd
> ports build? That's a lot less "overhead" to keep dragging around...

Well, we don't know at all it's just freebsd that's affected. In fact, I
would be surprised if there aren't other platforms that regressed due to
this.
I think a configure switch actually ends up being more code than the GUC...

Greetings,

Andres Freund

-- 
 Andres Freund	                   http://www.2ndQuadrant.com/
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