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Re: random_page_cost = 2.0 on Heroku Postgres - Mailing list pgsql-performance

From Josh Berkus
Subject Re: random_page_cost = 2.0 on Heroku Postgres
Date
Msg-id 4F331866.7070401@agliodbs.com
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In response to random_page_cost = 2.0 on Heroku Postgres  (Peter van Hardenberg <pvh@pvh.ca>)
Responses Re: random_page_cost = 2.0 on Heroku Postgres  (Scott Marlowe <scott.marlowe@gmail.com>)
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On 2/7/12 4:59 PM, Peter van Hardenberg wrote:
> Per the thread from last month, I've updated the default
> random_page_cost on Heroku Postgres to reduce the expected cost of a
> random_page on all new databases.

This is because Heroku uses AWS storage, which has fast seeks but poor
throughput compared to internal disk on a standard system, BTW.

--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com

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