On my computer the Java program takes 7 seconds. So you should be seeing a 3x slowdown with Racket.
You seem to see a 20x slowdown. This is very strange. How much RAM do you have? Racket performs very poorly when its memory is swapped out to disk. To the rest of the list: is there any inefficiency with Racket on Windows that could cause this massive slowdown? On Thu, Feb 27, 2014 at 6:34 PM, Cristian Baboi <cristian.ba...@gmail.com>wrote: > > > On 28 februarie 2014 01:13:46 EET, Eric Dong <yd2d...@uwaterloo.ca> wrote: > >> Windows shouldn't be much slower though. What CPU model do you have? >> (2.0 >> GHz can be fast or slow depending on your CPU model) >> > > AMD Athlon 3800+ X2 > > > Also, can you post a Python program that runs much faster? Maybe it is >> only >> your computer which is slow, and it would be even slower running the >> Python >> > > I attached a Java program I tested and it ran much faster. 13 s. > > I cannot test python because I don't have it installed and require some > libraries for big number arithmetic. I don't know python. > >
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