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From: Divakar Singh <dpsmails@yahoo.com>
To: Andres Freund <andres@anarazel.de>
Cc: pgsql-performance@postgresql.org
Subject: Re: Insert performance with composite index
Date: Mon, 1 Nov 2010 07:28:19 -0700 (PDT)
Message-ID: <466107.20499.qm@web65410.mail.ac4.yahoo.com> (raw)
In-Reply-To: <201011011521.00144.andres@anarazel.de>
References: <293254.80548.qm@web65413.mail.ac4.yahoo.com>
	<201011011514.32217.andres@anarazel.de>
	<521708.74664.qm@web65403.mail.ac4.yahoo.com>
	<201011011521.00144.andres@anarazel.de>

Do you mean these parameters have been removed starting 9.X?
As I see on 
http://www.network-theory.co.uk/docs/postgresql/vol3/BackgroundWriter.html 
,these parameters were added starting from 8.0 right?


 Best Regards,
Divakar




________________________________
From: Andres Freund <andres@anarazel.de>
To: Divakar Singh <dpsmails@yahoo.com>
Cc: pgsql-performance@postgresql.org
Sent: Mon, November 1, 2010 7:50:59 PM
Subject: Re: [PERFORM] Insert performance with composite index

On Monday 01 November 2010 15:16:49 Divakar Singh wrote:
> I am using 9.0.1
Either thats not true or you cargo culted loads of your config from a 
significantly older pg version.

Things like:

#bgwriter_delay = 200            # 10-10000 milliseconds between rounds
bgwriter_lru_percent = 0        # 0-100% of LRU buffers scanned/round
#bgwriter_lru_maxpages = 5        # 0-1000 buffers max written/round
#bgwriter_all_percent = 0.333        # 0-100% of all buffers scanned/round
bgwriter_all_maxpages = 0        # 0-1000 buffers max written/round

make me very suspicious.

As I said, I would check the variables I referenced in my first post...

Andres



      

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