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On Wed, Sep 28, 2016 at 8:19 AM, Dane Springmeyer <dane@mapbox.com> wrote:

> In osrm-backend lua is embedded and called from C++. The section of code that is running slower with lua 5.3, compared to 5.2.4, is https://github.com/Project-OSRM/osrm-backend/blob/master/src/extractor/extractor.cpp#L184-L208.

Your message is basically asking somebody on this list to debug/profile that complicated beast composed of C++ and Lua. There might still be volunteers, but I'd say you should isolate this problem to something comprehensible to people familiar with C/C++ and Lua, but not necessarily with your project.

Cheers,
V.