Re: [GENERAL] Creation of tsearch2 index is very slow

От: Martijn van Oosterhout
Тема: Re: [GENERAL] Creation of tsearch2 index is very slow
Дата: ,
Msg-id: 20060120201036.GE31908@svana.org
(см: обсуждение, исходный текст)
Ответ на: Re: [GENERAL] Creation of tsearch2 index is very slow  (Tom Lane)
Ответы: Re: [GENERAL] Creation of tsearch2 index is very slow  (Tom Lane)
Список: pgsql-performance

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Re: [GENERAL] Creation of tsearch2 index is very slow  (Tom Lane, )
 Re: [GENERAL] Creation of tsearch2 index is very slow  (Martijn van Oosterhout, )
  Re: [GENERAL] Creation of tsearch2 index is very slow  (Tom Lane, )
   Re: [GENERAL] Creation of tsearch2 index is very slow  (Martijn van Oosterhout, )
    Re: [GENERAL] Creation of tsearch2 index is very slow  (Tom Lane, )
     Re: [GENERAL] Creation of tsearch2 index is very slow  (Martijn van Oosterhout, )
      Re: [GENERAL] Creation of tsearch2 index is very slow  ("Steinar H. Gunderson", )
      Re: [GENERAL] Creation of tsearch2 index is very slow  (Tom Lane, )
       Re: [GENERAL] Creation of tsearch2 index is very slow  ("Steinar H. Gunderson", )
        Re: [GENERAL] Creation of tsearch2 index is very slow  (Ron, )
         Re: [GENERAL] Creation of tsearch2 index is very slow  ("Steinar H. Gunderson", )
       Re: [GENERAL] Creation of tsearch2 index is very slow  (Martijn van Oosterhout, )
       Re: [GENERAL] Creation of tsearch2 index is very slow  ("Steinar H. Gunderson", )
      Re: [GENERAL] Creation of tsearch2 index is very slow  (Ron, )
       Re: [GENERAL] Creation of tsearch2 index is very slow  ("Steinar H. Gunderson", )
       Re: [GENERAL] Creation of tsearch2 index is very slow  (Tom Lane, )
        Re: [GENERAL] Creation of tsearch2 index is very slow  ("Steinar H. Gunderson", )
         Re: [GENERAL] Creation of tsearch2 index is very slow  (Tom Lane, )
          Re: [GENERAL] Creation of tsearch2 index is very slow  ("Steinar H. Gunderson", )
           Re: [GENERAL] Creation of tsearch2 index is very slow  (Tom Lane, )
            Re: [GENERAL] Creation of tsearch2 index is very slow  ("Steinar H. Gunderson", )
            Re: [GENERAL] Creation of tsearch2 index is very slow  ("Craig A. James", )
            Re: [GENERAL] Creation of tsearch2 index is very  (Ron, )
             Re: [GENERAL] Creation of tsearch2 index is very  (Oleg Bartunov, )
              Re: [GENERAL] Creation of tsearch2 index is very  (Ron, )
             Re: [GENERAL] Creation of tsearch2 index is very  (Tom Lane, )
              Re: [GENERAL] Creation of tsearch2 index is very  (David Lang, )
               Re: [GENERAL] Creation of tsearch2 index is very  (Tom Lane, )
              Re: [GENERAL] Creation of tsearch2 index is very  (Ron, )
               Re: [GENERAL] Creation of tsearch2 index is very  (Alvaro Herrera <-ip.org>, )
                Re: [GENERAL] Creation of tsearch2 index is very  (Ron, )
                 Re: [GENERAL] Creation of tsearch2 index is very  ("Craig A. James", )
                  Re: [GENERAL] Creation of tsearch2 index is very  (Ron, )
        Re: [GENERAL] Creation of tsearch2 index is very slow  (Martijn van Oosterhout, )
         Re: [GENERAL] Creation of tsearch2 index is very slow  (Oleg Bartunov, )
          Re: [GENERAL] Creation of tsearch2 index is very slow  (Martijn van Oosterhout, )
           Re: [GENERAL] Creation of tsearch2 index is very slow  (Oleg Bartunov, )
            Re: [GENERAL] Creation of tsearch2 index is very slow  (Martijn van Oosterhout, )
           Re: [GENERAL] Creation of tsearch2 index is very slow  (Oleg Bartunov, )
       Re: [GENERAL] Creation of tsearch2 index is very slow  (Martijn van Oosterhout, )
      Re: [GENERAL] Creation of tsearch2 index is very  (Ron, )
 Re: [GENERAL] Creation of tsearch2 index is very  (Oleg Bartunov, )

On Fri, Jan 20, 2006 at 02:14:29PM -0500, Tom Lane wrote:
> [ thread moved to pgsql-performance ]
>
> I've obtained a gprof profile on Stephan's sample case (many thanks for
> providing the data, Stephan).  The command is

<snip>

Something I'm missing is the calls to tsearch functions. I'm not 100%
familiar with gprof, but is it possible those costs have been added
somewhere else because it's in a shared library? Perhaps the costs went
into FunctionCall1/3?

Have a nice day,
--
Martijn van Oosterhout   <>   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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