Postgres Pro
Downloads
Home   >   mailing lists

Re: PG as in-memory db? How to warm up and re-populate buffers? How to read in all tuples into memory? - Mailing list pgsql-performance

From Claudio Freire
Subject Re: PG as in-memory db? How to warm up and re-populate buffers? How to read in all tuples into memory?
Date
Msg-id CAGTBQpacHJrTKO9X3qC5_1q2iGz1g7LAc3JvMqMoL5WrZguF3w@mail.gmail.com
Whole thread Raw
In response to Re: PG as in-memory db? How to warm up and re-populate buffers? How to read in all tuples into memory?  (Andrew Dunstan <andrew@dunslane.net>)
Responses Re: PG as in-memory db? How to warm up and re-populate buffers? How to read in all tuples into memory?  (Peter van Hardenberg <pvh@pvh.ca>)
List pgsql-performance
Tree view 
On Thu, Mar 1, 2012 at 8:08 PM, Andrew Dunstan <andrew@dunslane.net> wrote:
> These are extremely low settings on virtually any modern computer. I usually
> look to set shared buffers in numbers of Gb and work_mem at least in tens if
> not hundreds of Mb for any significantly sized database.

For a read-only database, as was discussed, a lower shared_buffers
settings makes sense. And 128M is low enough, I'd guess.

Setting work_mem to hundreds of MB in a 4G system is suicide. Tens
even is dangerous.

pgsql-performance by date:

Previous
From: Andrew Dunstan
Date:
Subject: Re: PG as in-memory db? How to warm up and re-populate buffers? How to read in all tuples into memory?
Next
From: Peter van Hardenberg
Date:
Subject: Re: PG as in-memory db? How to warm up and re-populate buffers? How to read in all tuples into memory?