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From: Alvaro Herrera <alvherre@alvh.no-ip.org>
To: Rakesh Kumar <rakeshkumar464@mail.com>
Cc: Stephen Frost <sfrost@snowman.net>
Cc: pgsql-general@lists.postgresql.org <pgsql-general@lists.postgresql.org>
Subject: Re: data-checksums
Date: Tue, 9 Jan 2018 15:41:49 -0300
Message-ID: <20180109184149.ih4ore4c4axwizor@alvherre.pgsql> (raw)
In-Reply-To: <trinity-9ae7ee48-40c7-4820-ac76-c53e606435ab-1515520721430@3c-app-mailcom-lxa16>

Rakesh Kumar wrote:
> 
> > That said, imv anyway, the performance hit is small and having
> > checksums is well worth it.
> 
> I also would like to believe that the hit is small, but when PG
> official document writes "noticeable performance penalty", it becomes
> difficult to convince management that the hit is small :-)

Why believe, when you can measure?

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services




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