Re: [pcre-dev] JIT regression

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Auteur: Reini Urban
Date:  
À: ND
CC: Pcre-dev
Sujet: Re: [pcre-dev] JIT regression
ND via Pcre-dev <pcre-dev@???> schrieb am Di., 25. Juni 2019, 20:59:

> On 2019-06-25 09:30, Zoltán Herczeg wrote:
>
> > > It seems JIT is 16 times!! slower than interpreter for such simple
> > pattern.
> >I did some improvements on the SSE2 accelerated search and /(?s).*/
> > search. You can try them now. However I have never seen such big
> > differences in my measurements. The memchr can use AVX2, so it is still
> > faster, but it is not clear how you can detect AVX2 at runtime. At
> least
> > this fails on Ubuntu:
> >
>
>
> Thanks a lot for improvements!
>
> Sorry but I can't build pcre2test for Windows with Visual Studio directly
> from svn. There are no simple "press and play" possibility to build.
> Docs
> about building by VS are miserly and obscure.
>


You can see my windows smoker recipes here:
https://ci.appveyor.com/project/rurban/pcre

mingw, msvc and cygwin, 32 and 64 bit
But it doesn't pass for me.


> So I'm forced to wait until PCRE 10.34 is out, and after some time after
> it download compiled file from
> http://www.rexegg.com/pcregrep-pcretest.html.
>
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>