| From: | Abhijit Menon-Sen <ams(at)2ndQuadrant(dot)com> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Cc: | Andres Freund <andres(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> |
| Subject: | Re: What exactly is our CRC algorithm? |
| Date: | 2014-11-11 11:26:00 |
| Message-ID: | 20141111112600.GA10569@toroid.org |
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| Lists: | pgsql-hackers |
At 2014-11-04 14:40:36 +0100, andres(at)2ndquadrant(dot)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
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