gistfile1.txt

[] ~/projects/jruby $ pickjdk 6
New JDK: jdk1.8.0_181.jdk

[] ~/projects/jruby $ time jruby -e 1

real	0m1.927s
user	0m5.283s
sys	0m0.279s

[] ~/projects/jruby $ time jruby -e 1

real	0m1.882s
user	0m5.138s
sys	0m0.262s

[] ~/projects/jruby $ time jruby --dev -e 1

real	0m1.525s
user	0m2.032s
sys	0m0.219s

[] ~/projects/jruby $ time jruby --dev -e 1

real	0m1.514s
user	0m1.996s
sys	0m0.217s

[] ~/projects/jruby $ pickjdk 3
New JDK: jdk-11.jdk

[] ~/projects/jruby $ time jruby -e 1

real	0m1.893s
user	0m6.972s
sys	0m0.322s

[] ~/projects/jruby $ time jruby -e 1

real	0m1.927s
user	0m6.832s
sys	0m0.326s

[] ~/projects/jruby $ time jruby --dev -e 1

real	0m1.256s
user	0m2.873s
sys	0m0.237s

[] ~/projects/jruby $ time jruby --dev -e 1

real	0m1.347s
user	0m3.063s
sys	0m0.251s

[] ~/projects/jruby $ rm -rf lib/jruby.jsa 

[] ~/projects/jruby $ time jruby -e 1

real	0m2.385s
user	0m6.474s
sys	0m0.320s

[] ~/projects/jruby $ time jruby -e 1

real	0m2.425s
user	0m6.994s
sys	0m0.325s

[] ~/projects/jruby $ time jruby --dev -e 1

real	0m1.864s
user	0m2.505s
sys	0m0.199s

[] ~/projects/jruby $ time jruby --dev -e 1

real	0m1.912s
user	0m2.573s
sys	0m0.204s