* benchmark/: add vnmakarov's benchmarks around hash [ruby-core:75265]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56161 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Thu Sep 15 00:59:30 2016  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* benchmark/: add vnmakarov's benchmarks around hash [ruby-core:75265]
+
 Wed Sep 14 07:02:31 2016  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* hash.c (each_pair_i_fast): use rb_yield_values2 to avoid var args.

benchmark/bm_bighash.rb

@@ -0,0 +1 @@
+h = {}; 5000000.times {|n| h[n] = n }

benchmark/bm_hash_long.rb

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+k1 = "Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong";
+k2 = "Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping Pong Ping";
+h = {k1 => 0, k2 => 0};
+3000000.times{|i| k = i % 2 ? k2 : k1; h [k] = h[k] + 1}

benchmark/bm_hash_small2.rb

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+1000000.times.map{|i| a={}; 2.times{|j| a[j]=j}; a}

benchmark/bm_hash_small4.rb

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+1000000.times.map{|i| a={}; 4.times{|j| a[j]=j}; a}

benchmark/bm_hash_small8.rb

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+1000000.times.map{|i| a={}; 8.times{|j| a[j]=j}; a}