Re: [boost] [xpressive] Performance Tuning?

Subject: Re: [boost] [xpressive] Performance Tuning?
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2009-07-01 14:23:40

Dave Jenkins wrote:
> "Stewart, Robert" <Robert.Stewart_at_[hidden]> wrote in message
> news:DF2E67F3D097004694C8428C70A3FD69046843E230_at_msgbal516.ds.s
> usq.com...
> >I was experimenting with Xpressive to see how it would
> compare with some
> >custom, string-based numeric input parsing.  The Xpressive
> code is over
> >175X slower than the custom code.
>
> Each call to parse() is constructing the sregex variables.
> If you make them
> static or move them out of the loop, it should help a lot.

Thanks, but see my reply to Eric's.  While that would help with the benchmark performance, the nature of the function I'm testing means I can't do that otherwise.

_____
Rob Stewart                           robert.stewart_at_[hidden]
Software Engineer, Core Software      using std::disclaimer;
Susquehanna International Group, LLP  http://www.sig.com

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