Re: Too slow "Analyze" for the table with data in Thai language

From: Peter Geoghegan <pg(at)bowt(dot)ie>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Timur Luchkin <timur(dot)luchkin(at)gmail(dot)com>, pgsql-bugs(at)postgresql(dot)org
Subject: Re: Too slow "Analyze" for the table with data in Thai language
Date: 2016-07-05 23:52:56
Message-ID: CAH2-Wz=Dh8RwjsDZP_Qu6D5bjb-19VoRpGA369+V9XjExY=_gQ@mail.gmail.com
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On Tue, Jul 5, 2016 at 8:33 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> So ... why do you think this is a Postgres bug and not a glibc bug?
> We have no control over what happens inside strcoll().

I'd be interested in seeing exactly where time is spent by glibc.
Perhaps Timur can use perf to show us a profile using the default perf
event type:

https://wiki.postgresql.org/wiki/Profiling_with_perf

--
Peter Geoghegan

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