Re: Block-level CRC checks

From: Markus Wanner <markus(at)bluegap(dot)ch>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Block-level CRC checks
Date: 2008-10-20 09:23:07
Message-ID: 48FC4DFB.2040500@bluegap.ch
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Hi,

Alvaro Herrera wrote:
> So this discussion died with no solution arising to the
> hint-bit-setting-invalidates-the-CRC problem.

Isn't double-buffering solving this issue? Has somebody checked if it
even helps performance due to being able to release the lock on the
buffer *before* the syscall?

Regards

Markus Wanner

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