Select Code to Download

cd ~/Downloads
wget http://www.jsoftware.com/download/j903/install/j903_linux64.tar.g
+z
tar xzf j903_linux64.tar.gz -C ~/

$ diff llil.ijs llil2.ijs 
50c50
...
64,65d63
< echo 'Finished. Waiting for a key...'
< stdin ''

$ ~/j903/bin/jconsole llil2.ijs big1.txt big2.txt big3.txt out.txt
Read and parse input:    0.850145
Classify, sum, sort:     2.08596
Format and write output: 1.24986
Total time:              4.18597

# Update J engine to AVX or AVX2, depending on the CPU.

...
Classify, sum, sort:     1.56741
Format and write output: 1.12442
Total time:              3.48103