[racket] Performance help

From: Jens Axel Søgaard (jensaxel at soegaard.net)
Date: Sun Jan 4 14:18:11 EST 2015

> Both of these caused a serious slowdown. -- Matthias

Too bad.

One possibility: Python hash tables are fast(er).

There is a nice chapter on their implementation in Beautiful Code,
but I couldn't find a pdf to link to.

http://www.amazon.com/Beautiful-Code-Leading-Programmers-Practice/dp/0596510047

/Jens Axel

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