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Re: tmpfs and postgres memory

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Anj Adu <fotographs(at)gmail(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: tmpfs and postgres memory
Date: 2010-04-28 00:56:56
Message-ID: o2j603c8f071004271756l5be15855h52eb08bfe44ef206@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-performance
On Mon, Apr 26, 2010 at 7:24 PM, Anj Adu <fotographs(at)gmail(dot)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

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