Hello,

For the past few days, I've been trying, unsuccessfully, to make an
application I wrote faster.  A Java program that performs, more or
less, the same task takes 12 seconds (on my machine) to parse 1000
files; my Clojure program takes nearly 3 minutes.  This more than an
order of magnitude slower!  Using the profiling tools available with
the JVM, I quickly determined which function was the costliest.  I
copied it into a simple script file to profile it in isolation.  I
have made the script and the profile results (long!) available at this
URL: http://gist.github.com/82136

I'm finding the results puzzling: is dereferencing a var *that*
expensive?  Can anyone tell me if they see something fundamentally
wrong with my approach that would explain this abysmal performance?

Thank you,

Vincent.

P.S.: I am using Sun's JVM 1.6.0_10 as shipped in Ubuntu Ibex.  My
machine is an Athlon 64 X2 4200+ with 3 GB of RAM.
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