Re: Optimize Arm64 crc32c implementation in Postgresql - Mailing list pgsql-hackers

From Andres Freund
Subject Re: Optimize Arm64 crc32c implementation in Postgresql
Date
Msg-id 20180302160945.blghdomljwvybqpc@alap3.anarazel.de
Whole thread Raw
In response to RE: Optimize Arm64 crc32c implementation in Postgresql  (Yuqi Gu <Yuqi.Gu@arm.com>)
List pgsql-hackers
Hi,

On 2018-03-02 09:42:22 +0000, Yuqi Gu wrote:
> > Could you show whether it actually improves performance? Usually bulk loading data with parallel COPYs is a good
wayto hit this code path.
 
>
> The mini benchmark code:

I'd be more interested in a benchmark using postgres itself...

> > What's the availability of these headers and functions on non-linux platforms?
>
> This Arm64 optimization code only supports linux os so far.

That's not ok for postgres, unfortunately...


> What does it mean "stock autoconf" ?
>
> Should the configure script be made by specific version autoconf ?

Yes, it's the version from the autoconf project, rather than with
modifications by distributions. Don't worry about it, the committer can
take care of that.

- Andres


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