I saw that the maven compile:compile plugin didnt have the optimize=true enabled for mahout so i ran an experiment. Forget about the machine specs. Its run on the same system
Before enabling optimize: Compile Time Core : 50 secs Examples 10 secs FPGrowth 50K transactions with minSupport 20% Time taken: 1:40 min After enabling optimize Compile TIme Core: 1:08 min Examples: 20 secs FPGrowth 50K transactions with minSupport 20% Time taken: 1:28 min There seem to be some improvement in speed. Any thoughts or comments on this. Or on java optimizations in general Robin Wishing Java had a -O3