bench Integer #even/#odd, #times and #upto/#downto

benchmark/core/integer/bench_even_odd.rb

@@ -0,0 +1,56 @@
+require 'benchmark'
+require 'benchmark/ips'
+
+Benchmark.ips do |x|
+
+#Integer#even
+  x.report "Integer#even? true" do |times|
+    i = 0
+    while i < times
+      2.even?
+      i += 1
+    end
+  end
+
+  x.report "Integer#even? false" do |times|
+    i = 0
+    while i < times
+      1.even?
+      i += 1
+    end
+  end
+
+  x.report "Integer#even? alternating" do |times|
+    i = 0
+    while i < times
+      i.even?
+      i += 1
+    end
+  end
+
+#Integer#odd
+  x.report "Integer#odd? true" do |times|
+    i = 0
+    while i < times
+      1.even?
+      i += 1
+    end
+  end
+
+  x.report "Integer#odd? false" do |times|
+    i = 0
+    while i < times
+      2.even?
+      i += 1
+    end
+  end
+
+  x.report "Integer#odd? alternating" do |times|
+    i = 0
+    while i < times
+      i.even?
+      i += 1
+    end
+  end
+
+end

benchmark/core/integer/bench_times.rb

@@ -0,0 +1,14 @@
+require 'benchmark'
+require 'benchmark/ips'
+
+Benchmark.ips do |x|
+
+  x.report "Integer#times" do |times|
+    i = 0
+    while i < times
+      1000.times{ |x| }
+      i += 1
+    end
+  end
+
+end

benchmark/core/integer/bench_up_down.rb

@@ -0,0 +1,22 @@
+require 'benchmark'
+require 'benchmark/ips'
+
+Benchmark.ips do |x|
+
+  x.report "Integer#downto" do |times|
+    i = 0
+    while i < times
+      10000.downto(1)
+      i += 1
+    end
+  end
+
+  x.report "Integer#upto" do |times|
+    i = 0
+    while i < times
+      1.upto(10000)
+      i += 1
+    end
+  end
+
+end