* benchmark/bm_hash_flatten.rb: added. r43896 is about 4 times faster

  than 2.0.0p353.

* benchmark/bm_hash_keys.rb: added. r43896 is about 5 times faster
  than 2.0.0p353.

* benchmark/bm_hash_values.rb: added. r43896 is about 5 times faster
  than 2.0.0p353.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43898 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 0 deletions

diff --git a/benchmark/bm_hash_keys.rb b/benchmark/bm_hash_keys.rb
new file mode 100644
index 0000000000..6863cd01f9
--- /dev/null
+++ b/benchmark/bm_hash_keys.rb
@@ -0,0 +1,9 @@
+h = {}
+
+10000.times do |i|
+  h[i] = nil
+end
+
+5000.times do
+  h.keys
+end