Re: Cost of XLogInsert CRC calculations

From: Manfred Koizar <mkoi-pg(at)aon(dot)at>
To: Manfred Koizar <mkoi-pg(at)aon(dot)at>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Greg Stark <gsstark(at)mit(dot)edu>, Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, Mark Cave-Ayland <m(dot)cave-ayland(at)webbased(dot)co(dot)uk>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Cost of XLogInsert CRC calculations
Date: 2005-05-25 19:24:59
Message-ID: 17k991hh4ddg82nj61dvu3d197tjcu615j@4ax.com
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On Wed, 18 May 2005 13:50:22 +0200, I wrote:
>The most important figure is, that at MaxSpeed (/O2) 2x32 is almost
>twice as fast as CRC32 while only being marginally slower than CRC32.
^^^^^
Silly typo! That should have been:
The most important figure is, that at MaxSpeed (/O2) 2x32 is almost
twice as fast as CRC64 while only being marginally slower than CRC32.

Servus
Manfred

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