Re: Summaries on SSD usage? - Mailing list pgsql-performance

From Jesper Krogh
Subject Re: Summaries on SSD usage?
Date
Msg-id 4E60583A.4040302@krogh.cc
Whole thread Raw
In response to Re: Summaries on SSD usage?  (Jim Nasby <jim@nasby.net>)
Responses Re: Summaries on SSD usage?
List pgsql-performance
On 2011-09-01 23:28, Jim Nasby wrote:
> On Aug 30, 2011, at 12:23 PM, Stefan Keller wrote:
>> I'm looking for summaries (or best practices) on SSD usage with PostgreSQL.
>> My use case is mainly a "read-only" database.
>> Are there any around?
> I'm not sure, but for read-only why not just put more memory in the server? It'll be a lot cheaper than SSDs
It is "really expensive" to go over 512GB memory and the performance
regression for
just hitting disk in a system where you assume everything is in memory is
really huge. SSD makes the "edge" be a bit smoother than rotating drives
do.

Jesper

--
Jesper


pgsql-performance by date:

Previous
From: Mark Kirkwood
Date:
Subject: Re: 8.4 optimization regression?
Next
From: Scott Marlowe
Date:
Subject: Re: Summaries on SSD usage?