jruby/bench/java/bench_java_arrays.rb at test-latest_java8 · MSNexploder/jruby · GitHub

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require 'java'

require 'benchmark'

TIMES = (ARGV[0] || 5).to_i

TIMES.times do

Benchmark.bm(30) do |bm|

bm.report("control") {a = [1,2,3,4].to_java; 1_000_000.times {a}}

bm.report("java_ary[0]") {a = [1,2,3,4].to_java; 1_000_000.times {a[0]}}

bm.report("java_ary[0] = 1") {a = [1,2,3,4].to_java; 1_000_000.times {a[0] = 1}}

bm.report("java_ary[1,2]") {a = [1,2,3,4].to_java; 1_000_000.times {a[1,2]}}

bm.report("java_ary.each {|x|}") {a = [1,2,3,4].to_java; 1_000_000.times {a.each {|x|}}}

bm.report("java_ary + java_ary") {a = [1,2,3,4].to_java; 1_000_000.times {a + a}}

bm.report("java_ary.to_a") {a = [1,2,3,4].to_java; 1_000_000.times {a.to_a}}

end

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