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From: Heikki Linnakangas on 6 Apr 2010 03:14
Simon Riggs wrote:
> On Mon, 2010-04-05 at 19:29 +0100, Simon Riggs wrote:
>
>> Looking through the code some more I note that their are two timing
>> related parameters that are hardcoded into XLogPageRead(). At the very
>> least such things should be #defines, though one of them was previously
>> configurable using pg_standby, so I would like to see them both
>> accessible to user tuning.
>
> ...the code says "we want to react quickly when the next WAL record
> arrives" and then sleeps for 100ms.

The comment continues ", so sleep only a bit". That's in comparison to
the 5 s wait when polling the archive.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com

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