Re: Performance improvements for src/port/snprintf.c

From: Andres Freund <andres(at)anarazel(dot)de>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Alexander Kuzmenkov <a(dot)kuzmenkov(at)postgrespro(dot)ru>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Performance improvements for src/port/snprintf.c
Date: 2018-10-02 20:13:28
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On 2018-09-26 21:30:25 -0400, Tom Lane wrote:
> Here's a rebased version of <15785(dot)1536776055(at)sss(dot)pgh(dot)pa(dot)us>.
> I think we should try to get this reviewed and committed before
> we worry more about the float business. It would be silly to
> not be benchmarking any bigger changes against the low-hanging
> fruit here.

I've looked through the patch. Looks good to me. Some minor notes:

- How about adding our own strchrnul for the case where we don't
HAVE_STRCHRNUL? It's possible that other platforms have something
similar, and the code wouldlook more readable that way.
- I know it's not new, but is it actually correct to use va_arg(args, int64)


Andres Freund

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