pg.ddx.io  pgsql-performance@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Robert Haas <robertmhaas@gmail.com>
To: Anj Adu <fotographs@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: tmpfs and postgres memory
Date: Tue, 27 Apr 2010 20:56:56 -0400
Message-ID: <o2j603c8f071004271756l5be15855h52eb08bfe44ef206@mail.gmail.com> (raw)
In-Reply-To: <q2of2fd819a1004261624u985929a5s6d9250f9db77943b@mail.gmail.com>
References: <q2of2fd819a1004261624u985929a5s6d9250f9db77943b@mail.gmail.com>

On Mon, Apr 26, 2010 at 7:24 PM, Anj Adu <fotographs@gmail.com> wrote:
> I have a 16G box and tmpfs is configured to use 8G for tmpfs .
>
> Is a lot of memory being wasted that can be used for Postgres ? (I am
> not seeing any performance issues, but I am not clear how Linux uses
> the tmpfs and how Postgres would be affected by the reduction in
> memory)

What does the output of "free -m" look like when the database is as
heavily used as it typically gets?

...Robert



view thread (3+ messages)

Message-ID: <o2j603c8f071004271756l5be15855h52eb08bfe44ef206@mail.gmail.com>
Permalink:  ../o2j603c8f071004271756l5be15855h52eb08bfe44ef206@mail.gmail.com/
Also on:    postgresql.org/message-id/o2j603c8f071004271756l5be15855h52eb08bfe44ef206@mail.gmail.com

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-performance@postgresql.org
  Cc: robertmhaas@gmail.com, fotographs@gmail.com
  Subject: Re: tmpfs and postgres memory
  In-Reply-To: <o2j603c8f071004271756l5be15855h52eb08bfe44ef206@mail.gmail.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox