Re: What exactly is our CRC algorithm? - Mailing list pgsql-hackers

From Robert Haas
Subject Re: What exactly is our CRC algorithm?
Date
Msg-id CA+TgmobKOZVv-u0zF1PbTtPTz9o+UhC8Z6ZSkuRvxJWkZioK8Q@mail.gmail.com
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In response to Re: What exactly is our CRC algorithm?  (Abhijit Menon-Sen <ams@2ndQuadrant.com>)
List pgsql-hackers
On Tue, Nov 11, 2014 at 6:26 AM, Abhijit Menon-Sen <ams@2ndquadrant.com> wrote:
> At 2014-11-04 14:40:36 +0100, andres@2ndquadrant.com wrote:
>> On 2014-11-04 08:21:13 -0500, Robert Haas wrote:
>> > Are you going to get the slice-by-N stuff working next, to speed
>> > this up?
>>
>> I don't plan to do anything serious with it, but I've hacked up the
>> crc code to use the hardware instruction.
>
> I'm working on this (first speeding up the default calculation using
> slice-by-N, then adding support for the SSE4.2 CRC instruction on top).

Great!

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



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