From: Tom Lane <tgl@sss.pgh.pa.us>
To: Charles A. Landemaine <landemaine@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Loading the entire DB into RAM
Date: Fri, 07 Apr 2006 11:25:14 -0400
Message-ID: <12191.1144423514@sss.pgh.pa.us> (raw)
In-Reply-To: <e6575a30604070737n20b2d7a4l33ba51dcbf4527a@mail.gmail.com>
References: <e6575a30604070737n20b2d7a4l33ba51dcbf4527a@mail.gmail.com>
"Charles A. Landemaine" <landemaine@gmail.com> writes:
> What I'd like to do is find out how to keep the whole DB in RAM so
> that each time some one does a query, it doesn't use the HDD. Is it
> possible, if so, how?
That should happen essentially for free, if the kernel doesn't have any
better use for the memory --- anything read from disk once will stay in
kernel disk cache. Perhaps you need to take a closer look at your
kernel VM parameters. Or maybe you don't have enough RAM yet for both
the DB contents and the processes you need to run.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, landemaine@gmail.com
Subject: Re: Loading the entire DB into RAM
In-Reply-To: <12191.1144423514@sss.pgh.pa.us>
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