JRuby running the "min" challenge after a few tweaks

gistfile1.txt

[] ~/projects/jruby $ cat min.rb
def low_min(a, b)
  if a < b
    a
  else
    b
  end
end

def high_min(a, b)
  [a, b].sort.at(0)
end

20.times {
  t = Time.now
  i = 0
  while i < 100_000_000
    low_min(i, i+=1)
  end
  puts "low:  #{Time.now - t}"

  t = Time.now
  i = 0
  while i < 100_000_000
    high_min(i, i+=1)
  end
  puts "high: #{Time.now - t}"
}

[] ~/projects/jruby $ JAVA_OPTS=$GRAAL jruby -Xcompile.invokedynamic -Xfixnum.cache=false min.rb
low:  2.2648550000000003
high: 0.681386
low:  0.35639899999999997
high: 0.16915000000000002
low:  0.094107
high: 0.16881300000000002
low:  0.07174699999999999
high: 0.17848899999999998
low:  0.079235
high: 0.165079
low:  0.09004
high: 0.168719
low:  0.07557
high: 0.178189
low:  0.083259
high: 0.164412
low:  0.090774
high: 0.163765
low:  0.071055
high: 0.182369
low:  0.085164
high: 0.168249
low:  0.08817499999999999
high: 0.160921
low:  0.072628
high: 0.173565
low:  0.07823
high: 0.161287
low:  0.08923199999999999
high: 0.165192
low:  0.070665
high: 0.181875
low:  0.086671
high: 0.162917
low:  0.093394
high: 0.16798600000000002
low:  0.07347999999999999
high: 0.17231
low:  0.081306
high: 0.160564

[] ~/projects/jruby $ ruby -v min.rb
truffleruby 1.0.0-rc1, like ruby 2.3.7 <native build with Graal> [x86_64-darwin]
low:  0.162
high: 0.205
low:  0.073
high: 0.081
low:  0.081
high: 0.092
low:  0.096
high: 0.085
low:  0.088
high: 0.084
low:  0.082
high: 0.083
low:  0.049
high: 0.079
low:  0.051
high: 0.077
low:  0.05
high: 0.08
low:  0.049
high: 0.075
low:  0.047
high: 0.079
low:  0.049
high: 0.082
low:  0.051
high: 0.079
low:  0.048
high: 0.076
low:  0.049
high: 0.081
low:  0.0539999999999999
high: 0.08
low:  0.049
high: 0.078
low:  0.049
high: 0.089
low:  0.056
high: 0.081
low:  0.052
high: 0.077