From: Jochen Erwied <jochen@pgsql-performance.erwied.eu>
To: Tory M Blue <tmblue@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: bgwriter, checkpoints, curious (seeing delays)
Date: Fri, 26 Feb 2010 07:29:22 +0100
Message-ID: <1418021012.20100226072922@erwied.eu> (raw)
In-Reply-To: <8a547c841002252220o4579ead0vd35a44726fdd5c5f@mail.gmail.com>
References: <8a547c841002252212t382cfeb4pde3e668a9d3f2f10@mail.gmail.com>
<8a547c841002252220o4579ead0vd35a44726fdd5c5f@mail.gmail.com>
Friday, February 26, 2010, 7:20:38 AM you wrote:
> "checkpoint_completion_target (floating point)
> interesting that it's a .5 second default setting and I'm seeing
> exactly that .5 second delay.
It's not an exact time, but a multiplier to 'checkpoint_timeout'. So a
setting of .5 with a timeout of 300 seconds means a checkpoint should be
completed after 300*0.5 = 150 seconds.
--
Jochen Erwied | home: jochen@erwied.eu +49-208-38800-18, FAX: -19
Sauerbruchstr. 17 | work: joe@mbs-software.de +49-2151-7294-24, FAX: -50
D-45470 Muelheim | mobile: jochen.erwied@vodafone.de +49-173-5404164
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To: pgsql-performance@postgresql.org
Cc: jochen@pgsql-performance.erwied.eu, tmblue@gmail.com
Subject: Re: bgwriter, checkpoints, curious (seeing delays)
In-Reply-To: <1418021012.20100226072922@erwied.eu>
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