Re: Insert performance with composite index

From: Divakar Singh <dpsmails(at)yahoo(dot)com>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Insert performance with composite index
Date: 2010-11-01 14:28:19
Message-ID: 466107.20499.qm@web65410.mail.ac4.yahoo.com
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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(at)anarazel(dot)de>
To: Divakar Singh <dpsmails(at)yahoo(dot)com>
Cc: pgsql-performance(at)postgresql(dot)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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