whartonn · April 7, 2013 14:47 · Apr 7, 2013
diff --git a/benchmark_mod_even_vs_bit_even b/benchmark_mod_even_vs_bit_even
@@ -0,0 +1,26 @@
+def odd_or_even_mod(number)
+  return "Even" if number % 2 == 0
+  return "Odd"
+end
+def odd_or_even_bit(number)
+  return "Even" if number & 1 == 0
+  return "Odd"
+end
+
+require 'benchmark'
+Benchmark.bm(40) do |x|
+  x.report ('mod even/odd') do
+    100_000.times do
+      odd_or_even_mod(948479784)
+      odd_or_even_mod(948479785)
+    end
+  end
+  x.report('bitwise even/odd') do
+    100_000.times do
+      odd_or_even_bit(948479784)
+      odd_or_even_bit(948479785)
+    end
+  end
+end
+
+