Re: data-checksums

From: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
To: Rakesh Kumar <rakeshkumar464(at)mail(dot)com>
Cc: Stephen Frost <sfrost(at)snowman(dot)net>, "pgsql-general(at)lists(dot)postgresql(dot)org" <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: data-checksums
Date: 2018-01-09 18:41:49
Message-ID: 20180109184149.ih4ore4c4axwizor@alvherre.pgsql
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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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