Re: RES: Priority to a mission critical transaction - Mailing list pgsql-performance

From Bruce Momjian
Subject Re: RES: Priority to a mission critical transaction
Date
Msg-id 200611282344.kASNijt09203@momjian.us
Whole thread Raw
In response to Re: RES: Priority to a mission critical transaction  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: RES: Priority to a mission critical transaction
Re: RES: Priority to a mission critical transaction
List pgsql-performance
Someone should ask them to remove the article.

---------------------------------------------------------------------------

Tom Lane wrote:
> "Carlos H. Reimer" <carlos.reimer@opendb.com.br> writes:
> > There is an article about "Lowering the priority of a PostgreSQL query"
> > (http://weblog.bignerdranch.com/?p=11) that explains how to use the
> > setpriority() to lower PostgreSQL processes.
>
> > I?m wondering how much effective it would be for i/o bound systems.
>
> That article isn't worth the electrons it's written on.  Aside from the
> I/O point, there's a little problem called "priority inversion".  See
> the archives for (many) past discussions of nice'ing backends.
>
>             regards, tom lane
>
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--
  Bruce Momjian   bruce@momjian.us
  EnterpriseDB    http://www.enterprisedb.com

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