Re: [WIP] speeding up GIN build with parallel workers

From: "Constantin S(dot) Pan" <kvapen(at)gmail(dot)com>
To: Peter Geoghegan <pg(at)heroku(dot)com>
Cc: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [WIP] speeding up GIN build with parallel workers
Date: 2016-02-17 21:46:04
Message-ID: 20160218004604.23144093@thought
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I was testing with number of workers starting at 0. The 0 case is (in
theory) equivalent to master branch. But I should certainly compare to
the master branch, you are right. Will do that shortly.

On Wed, 17 Feb 2016 12:26:05 -0800
Peter Geoghegan <pg(at)heroku(dot)com> wrote:

> On Wed, Feb 17, 2016 at 7:55 AM, Constantin S. Pan <kvapen(at)gmail(dot)com>
> wrote:
> > 4. Hit the 8x speedup limit. Made some analysis of the reasons (see
> > the attached plot or the data file).
>
> Did you actually compare this to the master branch? I wouldn't like to
> assume that the one worker case was equivalent. Obviously that's the
> really interesting baseline.
>
>

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