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

From Abhijit Menon-Sen
Subject Re: What exactly is our CRC algorithm?
Date
Msg-id 20141111112600.GA10569@toroid.org
Whole thread Raw
In response to Re: What exactly is our CRC algorithm?  (Andres Freund <andres@2ndquadrant.com>)
Responses Re: What exactly is our CRC algorithm?  (Robert Haas <robertmhaas@gmail.com>)
Re: What exactly is our CRC algorithm?  (Abhijit Menon-Sen <ams@2ndQuadrant.com>)
List pgsql-hackers
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).

-- Abhijit



pgsql-hackers by date:

Previous
From: Andres Freund
Date:
Subject: pg_prewarm really needs some CHECK_FOR_INTERRUPTS
Next
From: Michael Paquier
Date:
Subject: Re: pg_prewarm really needs some CHECK_FOR_INTERRUPTS