Horton

Re: 16-bit page checksums for 9.2

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: pgsql-hackers@postgresql.org
Cc: "Kevin Grittner" <Kevin.Grittner@wicourts.gov>, "Simon Riggs" <simon@2ndquadrant.com>, aidan@highrise.ca, stark@mit.edu
Date: 2012-01-04T09:20:20Z
Lists: pgsql-hackers 
On Tuesday, January 03, 2012 11:21:42 PM Kevin Grittner wrote:
> (1)  I like the choice of Fletcher-16.  It should be very good at
> detecting problems while being a lot less expensive that an official
> CRC calculation. 
I wonder if CRC32c wouldn't be a good alternative given more and more cpus 
(its in SSE 4.2) support calculating it in silicon.

Andres