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From: Jim Nasby <Jim.Nasby@BlueTreble.com>
To: Stephen Frost <sfrost@snowman.net>
Cc: Vladimir Borodin <root@simply.name>
Cc: Pavel Stehule <pavel.stehule@gmail.com>
Cc: Dinesh Chandra 12108 <Dinesh.Chandra@cyient.com>
Cc: Madusudanan.B.N <b.n.madusudanan@gmail.com>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Cc: David Steele <david@pgmasters.net>
Subject: Re: Backup taking long time !!!
Date: Mon, 23 Jan 2017 09:31:29 -0600
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In-Reply-To: <20170123152722.GX18360@tamriel.snowman.net>
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On 1/23/17 9:27 AM, Stephen Frost wrote:
> If you want my 2c on that, running with BLKSZ <> 8192 is playing with
> fire, or at least running with scissors.

I've never seen it myself, but I'm under the impression that it's not 
unheard of for OLAP environments. Given how sensitive PG is to IO 
latency a larger block size could theoretically mean a big performance 
improvement in some scenarios.
-- 
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Experts in Analytics, Data Architecture and PostgreSQL
Data in Trouble? Get it in Treble! http://BlueTreble.com
855-TREBLE2 (855-873-2532)


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