From: Laurenz Albe <laurenz.albe@cybertec.at>
To: Daulat Ram <Daulat.Ram@exponential.com>
To: pgsql-performance@lists.postgresql.org <pgsql-performance@lists.postgresql.org>
Subject: Re: Shared_buffers
Date: Tue, 12 Mar 2019 09:29:13 +0100
Message-ID: <56099ac31c7cc1a4e8a51963e2674e7fe592b86f.camel@cybertec.at> (raw)
In-Reply-To: <BL0PR01MB51871A89E9255FFCD13CC3839B480@BL0PR01MB5187.prod.exchangelabs.com>
References: <BL0PR01MB51871A89E9255FFCD13CC3839B480@BL0PR01MB5187.prod.exchangelabs.com>
Daulat Ram wrote:
> I want to know about the working and importance of shared_buffers in Postgresql?
> is it similar to the oracle database buffer cache?
Yes, exactly.
The main difference is that PostgreSQL uses buffered I/O, while Oracle usually
uses direct I/O.
Usually you start with shared_buffers being the minimum of a quarter of the
available RAM and 8 GB.
Yours,
Laurenz Albe
--
Cybertec | https://www.cybertec-postgresql.com
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To: pgsql-performance@postgresql.org
Cc: laurenz.albe@cybertec.at, Daulat.Ram@exponential.com, pgsql-performance@lists.postgresql.org
Subject: Re: Shared_buffers
In-Reply-To: <56099ac31c7cc1a4e8a51963e2674e7fe592b86f.camel@cybertec.at>
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