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Date: Fri, 20 Jan 2006 21:51:32 +0100
From: Martijn van Oosterhout <kleptog@svana.org>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Stephan Vollmer <svollmer@gmx.de>, pgsql-performance@postgreSQL.org
Subject: Re: [GENERAL] Creation of tsearch2 index is very slow
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On Fri, Jan 20, 2006 at 03:21:45PM -0500, Tom Lane wrote:
> If the totals given by gprof are correct, then it's down in the noise.
> I don't think I trust that too much ... but I don't see anything in the
> gprof manual about how to include a dynamically loaded library in the
> profile.  (I did compile tsearch2 with -pg, but that's evidently not
> enough.)

There is some mention on the web of an environment variable you can
set: LD_PROFILE=3D<libname>

These pages seem relevent:
http://sourceware.org/ml/binutils/2002-04/msg00047.html
http://www.scit.wlv.ac.uk/cgi-bin/mansec?1+gprof

It's wierd how some man pages for gprof describe this feature, but the
one on my local system doesn't mention it.

> I'll see if I can link tsearch2 statically to resolve this question.

That'll work too...
--=20
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> tool for doing 5% of the work and then sitting around waiting for someone
> else to do the other 95% so you can sue them.

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