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Re: Re: [RFC][PATCH]: CRC32 is limiting at COPY/CTAS/INSERT ... SELECT + speeding it up - Mailing list pgsql-hackers

From Andres Freund
Subject Re: Re: [RFC][PATCH]: CRC32 is limiting at COPY/CTAS/INSERT ... SELECT + speeding it up
Date
Msg-id 201006071245.58506.andres@anarazel.de
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In response to Re: Re: [RFC][PATCH]: CRC32 is limiting at COPY/CTAS/INSERT ... SELECT + speeding it up  ("Pierre C" <lists@peufeu.com>)
Responses Re: Re: [RFC][PATCH]: CRC32 is limiting at COPY/CTAS/INSERT ... SELECT + speeding it up
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On Monday 07 June 2010 12:37:13 Pierre C wrote:
> > On Sunday 30 May 2010 18:29:31 Greg Stark wrote:
> >> On Sun, May 30, 2010 at 4:54 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> >> > I read through that thread and couldn't find much discussion of
> >> > alternative CRC implementations --- we spent all our time on arguing
> >> > about whether we needed 64-bit CRC or not.
> 
> SSE4.2 has a hardware CRC32 instruction, this might be interesting to
> use...
Different polynom unfortunately...

Andres

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