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Re: random_page_cost = 2.0 on Heroku Postgres

From: Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
To: Josh Berkus <josh(at)agliodbs(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: random_page_cost = 2.0 on Heroku Postgres
Date: 2012-02-09 01:39:14
Message-ID: CAOR=d=2QNts+9tS6SYcgKhSM56MbJPR2Js=B9YWfGehUVR+i+Q@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-performance
On Wed, Feb 8, 2012 at 5:50 PM, Josh Berkus <josh(at)agliodbs(dot)com> wrote:
> 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.

Also judging by the other thread, it might be something to stop closer
to 1.2 to 1.4 or something.

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Next:From: Peter van HardenbergDate: 2012-02-09 01:45:50
Subject: Re: random_page_cost = 2.0 on Heroku Postgres
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