From f44446c45d8875d5e5d6e556da8d1ff3d4452cab Mon Sep 17 00:00:00 2001
From: kosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 1 Jul 2011 10:39:12 +0000
Subject: 	* benchmark/bm_app_erb.rb: increase loop count. too short 
   mesurement time makes less accuracy. 	*
 benchmark/bm_app_factorial.rb: ditto. 	* benchmark/bm_app_mandelbrot.rb:
 ditto. 	* benchmark/bm_app_strconcat.rb: ditto.

	* benchmark/bm_io_file_create.rb: ditto.
	* benchmark/bm_io_file_read.rb: ditto.
	* benchmark/bm_io_file_write.rb: ditto.

	* benchmark/bm_so_concatenate.rb: ditto.
	* benchmark/bm_so_lists.rb: ditto.
	* benchmark/bm_so_matrix.rb: ditto.
	* benchmark/bm_so_random.rb: ditto.
	* benchmark/bm_so_sieve.rb: ditto.

	* benchmark/bm_vm_thread_mutex1.rb: ditto.
	* benchmark/bm_vm_thread_mutex2.rb: ditto.
	* benchmark/bm_vm_thread_mutex3.rb: ditto.

	* benchmark/bm_vm1_block.rb: cleanup.
	* benchmark/bm_vm1_const.rb: cleanup.
	* benchmark/bm_vm1_ensure.rb: cleanup.
	* benchmark/bm_vm1_ivar.rb: cleanup.
	* benchmark/bm_vm1_length.rb: cleanup.
	* benchmark/bm_vm1_neq.rb: cleanup.
	* benchmark/bm_vm1_not.rb: cleanup.
	* benchmark/bm_vm1_rescue.rb: cleanup.
	* benchmark/bm_vm1_simplereturn.rb: cleanup.
	* benchmark/bm_vm1_swap.rb: cleanup.

	* benchmark/bm_vm2_array.rb: cleanup.
	* benchmark/bm_vm2_case.rb: cleanup.
	* benchmark/bm_vm2_defined_method.rb: cleanup.
	* benchmark/bm_vm2_eval.rb: cleanup.
	* benchmark/bm_vm2_method.rb: cleanup.
	* benchmark/bm_vm2_mutex.rb: cleanup.
	* benchmark/bm_vm2_poly_method.rb: cleanup.
	* benchmark/bm_vm2_poly_method_ov.rb: cleanup.
	* benchmark/bm_vm2_proc.rb: cleanup.
	* benchmark/bm_vm2_regexp.rb: cleanup.
	* benchmark/bm_vm2_send.rb: cleanup.
	* benchmark/bm_vm2_super.rb: cleanup.
	* benchmark/bm_vm2_unif1.rb: cleanup.
	* benchmark/bm_vm2_zsuper.rb: cleanup.

	* benchmark/bm_vm_thread_alive_check1.rb: cleanup.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32356 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog                              | 50 ++++++++++++++++++++++++++++++++++
 benchmark/bm_app_erb.rb                |  2 +-
 benchmark/bm_app_factorial.rb          |  4 +--
 benchmark/bm_app_mandelbrot.rb         |  4 +--
 benchmark/bm_app_strconcat.rb          |  2 +-
 benchmark/bm_io_file_create.rb         |  2 +-
 benchmark/bm_io_file_read.rb           |  2 +-
 benchmark/bm_io_file_write.rb          |  2 +-
 benchmark/bm_so_concatenate.rb         |  2 +-
 benchmark/bm_so_fannkuch.rb            |  2 +-
 benchmark/bm_so_lists.rb               |  2 +-
 benchmark/bm_so_matrix.rb              |  2 +-
 benchmark/bm_so_random.rb              |  2 +-
 benchmark/bm_so_sieve.rb               |  2 +-
 benchmark/bm_vm1_block.rb              |  4 +--
 benchmark/bm_vm1_const.rb              |  2 +-
 benchmark/bm_vm1_ensure.rb             |  2 +-
 benchmark/bm_vm1_ivar.rb               |  2 +-
 benchmark/bm_vm1_length.rb             |  2 +-
 benchmark/bm_vm1_neq.rb                |  2 +-
 benchmark/bm_vm1_not.rb                |  2 +-
 benchmark/bm_vm1_rescue.rb             |  2 +-
 benchmark/bm_vm1_simplereturn.rb       |  2 +-
 benchmark/bm_vm1_swap.rb               |  2 +-
 benchmark/bm_vm2_array.rb              |  2 +-
 benchmark/bm_vm2_case.rb               |  2 +-
 benchmark/bm_vm2_defined_method.rb     |  2 +-
 benchmark/bm_vm2_eval.rb               |  2 +-
 benchmark/bm_vm2_method.rb             |  2 +-
 benchmark/bm_vm2_mutex.rb              |  2 +-
 benchmark/bm_vm2_poly_method.rb        |  2 +-
 benchmark/bm_vm2_poly_method_ov.rb     |  2 +-
 benchmark/bm_vm2_proc.rb               |  2 +-
 benchmark/bm_vm2_regexp.rb             |  2 +-
 benchmark/bm_vm2_send.rb               |  2 +-
 benchmark/bm_vm2_super.rb              |  2 +-
 benchmark/bm_vm2_unif1.rb              |  2 +-
 benchmark/bm_vm2_zsuper.rb             |  2 +-
 benchmark/bm_vm_thread_alive_check1.rb |  2 +-
 benchmark/bm_vm_thread_mutex1.rb       |  2 +-
 benchmark/bm_vm_thread_mutex2.rb       |  2 +-
 benchmark/bm_vm_thread_mutex3.rb       |  2 +-
 42 files changed, 94 insertions(+), 44 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 4e556f3ced..c5d07d8628 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,53 @@
+Fri Jul  1 18:52:31 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
+
+	* benchmark/bm_app_erb.rb: increase loop count. too short
+	  mesurement time makes less accuracy.
+	* benchmark/bm_app_factorial.rb: ditto.
+	* benchmark/bm_app_mandelbrot.rb: ditto.
+	* benchmark/bm_app_strconcat.rb: ditto.
+
+	* benchmark/bm_io_file_create.rb: ditto.
+	* benchmark/bm_io_file_read.rb: ditto.
+	* benchmark/bm_io_file_write.rb: ditto.
+
+	* benchmark/bm_so_concatenate.rb: ditto.
+	* benchmark/bm_so_lists.rb: ditto.
+	* benchmark/bm_so_matrix.rb: ditto.
+	* benchmark/bm_so_random.rb: ditto.
+	* benchmark/bm_so_sieve.rb: ditto.
+
+	* benchmark/bm_vm_thread_mutex1.rb: ditto.
+	* benchmark/bm_vm_thread_mutex2.rb: ditto.
+	* benchmark/bm_vm_thread_mutex3.rb: ditto.
+
+	* benchmark/bm_vm1_block.rb: cleanup.
+	* benchmark/bm_vm1_const.rb: cleanup.
+	* benchmark/bm_vm1_ensure.rb: cleanup.
+	* benchmark/bm_vm1_ivar.rb: cleanup.
+	* benchmark/bm_vm1_length.rb: cleanup.
+	* benchmark/bm_vm1_neq.rb: cleanup.
+	* benchmark/bm_vm1_not.rb: cleanup.
+	* benchmark/bm_vm1_rescue.rb: cleanup.
+	* benchmark/bm_vm1_simplereturn.rb: cleanup.
+	* benchmark/bm_vm1_swap.rb: cleanup.
+
+	* benchmark/bm_vm2_array.rb: cleanup.
+	* benchmark/bm_vm2_case.rb: cleanup.
+	* benchmark/bm_vm2_defined_method.rb: cleanup.
+	* benchmark/bm_vm2_eval.rb: cleanup.
+	* benchmark/bm_vm2_method.rb: cleanup.
+	* benchmark/bm_vm2_mutex.rb: cleanup.
+	* benchmark/bm_vm2_poly_method.rb: cleanup.
+	* benchmark/bm_vm2_poly_method_ov.rb: cleanup.
+	* benchmark/bm_vm2_proc.rb: cleanup.
+	* benchmark/bm_vm2_regexp.rb: cleanup.
+	* benchmark/bm_vm2_send.rb: cleanup.
+	* benchmark/bm_vm2_super.rb: cleanup.
+	* benchmark/bm_vm2_unif1.rb: cleanup.
+	* benchmark/bm_vm2_zsuper.rb: cleanup.
+
+	* benchmark/bm_vm_thread_alive_check1.rb: cleanup.
+
 Fri Jul  1 15:23:00 2011  Marc-Andre Lafortune  <ruby-core@marc-andre.ca>
 
 	* lib/matrix: Add LUP decomposition
diff --git a/benchmark/bm_app_erb.rb b/benchmark/bm_app_erb.rb
index e58b7a34a1..77c66a7949 100644
--- a/benchmark/bm_app_erb.rb
+++ b/benchmark/bm_app_erb.rb
@@ -5,7 +5,7 @@
 require 'erb'
 
 data = DATA.read
-max = 5_000
+max = 15_000
 title = "hello world!"
 content = "hello world!\n" * 10
 
diff --git a/benchmark/bm_app_factorial.rb b/benchmark/bm_app_factorial.rb
index a5a5de0426..45f471dfdb 100644
--- a/benchmark/bm_app_factorial.rb
+++ b/benchmark/bm_app_factorial.rb
@@ -6,6 +6,6 @@ def fact(n)
   end
 end
 
-8.times{
+100.times {
   fact(5000)
-}
\ No newline at end of file
+}
diff --git a/benchmark/bm_app_mandelbrot.rb b/benchmark/bm_app_mandelbrot.rb
index a0dcf5e874..89069db7ab 100644
--- a/benchmark/bm_app_mandelbrot.rb
+++ b/benchmark/bm_app_mandelbrot.rb
@@ -12,8 +12,8 @@ end
 
 ary = []
 
-(0..100).each{|dx|
-  (0..100).each{|dy|
+(0..1000).each{|dx|
+  (0..1000).each{|dy|
     x = dx / 50.0
     y = dy / 50.0
     c = Complex(x, y)
diff --git a/benchmark/bm_app_strconcat.rb b/benchmark/bm_app_strconcat.rb
index c6ef817263..7b2f2da5a7 100644
--- a/benchmark/bm_app_strconcat.rb
+++ b/benchmark/bm_app_strconcat.rb
@@ -1,5 +1,5 @@
 i=0
-while i<500000
+while i<2_000_000
   "#{1+1} #{1+1} #{1+1}"
   i+=1
 end
diff --git a/benchmark/bm_io_file_create.rb b/benchmark/bm_io_file_create.rb
index 7adbe9ea5e..2f205c1333 100644
--- a/benchmark/bm_io_file_create.rb
+++ b/benchmark/bm_io_file_create.rb
@@ -2,7 +2,7 @@
 # Create files
 #
 
-max = 50_000
+max = 200_000
 file = './tmpfile_of_bm_io_file_create'
 
 max.times{
diff --git a/benchmark/bm_io_file_read.rb b/benchmark/bm_io_file_read.rb
index 2b4212db76..b9e796ed30 100644
--- a/benchmark/bm_io_file_read.rb
+++ b/benchmark/bm_io_file_read.rb
@@ -4,7 +4,7 @@
 
 require 'tempfile'
 
-max = 20_000
+max = 200_000
 str = "Hello world!  " * 1000
 f = Tempfile.new('yarv-benchmark')
 f.write str
diff --git a/benchmark/bm_io_file_write.rb b/benchmark/bm_io_file_write.rb
index 3cec58c6ae..aa1be0e5fe 100644
--- a/benchmark/bm_io_file_write.rb
+++ b/benchmark/bm_io_file_write.rb
@@ -4,7 +4,7 @@
 
 require 'tempfile'
 
-max = 20_000
+max = 200_000
 str = "Hello world!  " * 1000
 f = Tempfile.new('yarv-benchmark')
 
diff --git a/benchmark/bm_so_concatenate.rb b/benchmark/bm_so_concatenate.rb
index 82629688b7..56b9410632 100644
--- a/benchmark/bm_so_concatenate.rb
+++ b/benchmark/bm_so_concatenate.rb
@@ -9,7 +9,7 @@ i=0
 while i<10
   i+=1
   hello = ''
-  400000.times do |e|
+  4_000_000.times do |e|
     hello << STUFF
   end
 end
diff --git a/benchmark/bm_so_fannkuch.rb b/benchmark/bm_so_fannkuch.rb
index a214f2e205..bac5ecd44c 100644
--- a/benchmark/bm_so_fannkuch.rb
+++ b/benchmark/bm_so_fannkuch.rb
@@ -40,6 +40,6 @@ end
 def puts *args
 end
 
-N = 10 # (ARGV[0] || 1).to_i
+N = 9 # (ARGV[0] || 1).to_i
 puts "Pfannkuchen(#{N}) = #{fannkuch(N)}"
 
diff --git a/benchmark/bm_so_lists.rb b/benchmark/bm_so_lists.rb
index 3652288881..f8d26797aa 100644
--- a/benchmark/bm_so_lists.rb
+++ b/benchmark/bm_so_lists.rb
@@ -1,6 +1,6 @@
 #from http://www.bagley.org/~doug/shootout/bench/lists/lists.ruby
 
-NUM = 100
+NUM = 300
 SIZE = 10000
 
 def test_lists()
diff --git a/benchmark/bm_so_matrix.rb b/benchmark/bm_so_matrix.rb
index 0f274ad06c..e2c5c8e559 100644
--- a/benchmark/bm_so_matrix.rb
+++ b/benchmark/bm_so_matrix.rb
@@ -5,7 +5,7 @@
 
 n = 60 #Integer(ARGV.shift || 1)
 
-size = 30
+size = 40
 
 def mkmatrix(rows, cols)
     count = 1
diff --git a/benchmark/bm_so_random.rb b/benchmark/bm_so_random.rb
index 83c0d6d380..57f700b863 100644
--- a/benchmark/bm_so_random.rb
+++ b/benchmark/bm_so_random.rb
@@ -10,7 +10,7 @@ def gen_random(max)
   (max * ($last = ($last * IA + IC) % IM)) / IM
 end
 
-N = 1000000
+N = 3_000_000
 
 i=0
 while i<N
diff --git a/benchmark/bm_so_sieve.rb b/benchmark/bm_so_sieve.rb
index dbe2bfa63d..3f1b138bd1 100644
--- a/benchmark/bm_so_sieve.rb
+++ b/benchmark/bm_so_sieve.rb
@@ -1,5 +1,5 @@
 # from http://www.bagley.org/~doug/shootout/bench/sieve/sieve.ruby
-num = 40
+num = 500
 count = i = j = 0
 flags0 = Array.new(8192,1)
 k = 0
diff --git a/benchmark/bm_vm1_block.rb b/benchmark/bm_vm1_block.rb
index 2dc4e72be5..0a97883974 100644
--- a/benchmark/bm_vm1_block.rb
+++ b/benchmark/bm_vm1_block.rb
@@ -3,8 +3,8 @@ def m
 end
 
 i=0
-while i<30000000 # while loop 1
+while i<30_000_000 # while loop 1
   i+=1
   m{
   }
-end
\ No newline at end of file
+end
diff --git a/benchmark/bm_vm1_const.rb b/benchmark/bm_vm1_const.rb
index 3e395d9478..066916dc31 100644
--- a/benchmark/bm_vm1_const.rb
+++ b/benchmark/bm_vm1_const.rb
@@ -1,7 +1,7 @@
 Const = 1
 
 i = 0
-while i<30000000 # while loop 1
+while i<30_000_000 # while loop 1
   i+= 1
   j = Const
   k = Const
diff --git a/benchmark/bm_vm1_ensure.rb b/benchmark/bm_vm1_ensure.rb
index c3b71ead5a..b1948f7621 100644
--- a/benchmark/bm_vm1_ensure.rb
+++ b/benchmark/bm_vm1_ensure.rb
@@ -1,5 +1,5 @@
 i=0
-while i<30000000 # benchmark loop 1
+while i<30_000_000 # benchmark loop 1
   i+=1
   begin
     begin
diff --git a/benchmark/bm_vm1_ivar.rb b/benchmark/bm_vm1_ivar.rb
index 4de833a316..3ba56427f4 100644
--- a/benchmark/bm_vm1_ivar.rb
+++ b/benchmark/bm_vm1_ivar.rb
@@ -1,7 +1,7 @@
 @a = 1
 
 i = 0
-while i<30000000 # while loop 1
+while i<30_000_000 # while loop 1
   i+= 1
   j = @a
   k = @a
diff --git a/benchmark/bm_vm1_length.rb b/benchmark/bm_vm1_length.rb
index 2d7d7f0b52..ccb773278f 100644
--- a/benchmark/bm_vm1_length.rb
+++ b/benchmark/bm_vm1_length.rb
@@ -1,7 +1,7 @@
 a = 'abc'
 b = [1, 2, 3]
 i=0
-while i<30000000 # while loop 1
+while i<30_000_000 # while loop 1
   i+=1
   a.length
   b.length
diff --git a/benchmark/bm_vm1_neq.rb b/benchmark/bm_vm1_neq.rb
index 212f056c6e..9254a0ca9b 100644
--- a/benchmark/bm_vm1_neq.rb
+++ b/benchmark/bm_vm1_neq.rb
@@ -2,7 +2,7 @@ i = 0
 obj1 = Object.new
 obj2 = Object.new
 
-while i<30000000 # while loop 1
+while i<30_000_000 # while loop 1
   i+= 1
   obj1 != obj2
 end
diff --git a/benchmark/bm_vm1_not.rb b/benchmark/bm_vm1_not.rb
index f139fed8be..ee9d0f3605 100644
--- a/benchmark/bm_vm1_not.rb
+++ b/benchmark/bm_vm1_not.rb
@@ -1,7 +1,7 @@
 i = 0
 obj = Object.new
 
-while i<30000000 # while loop 1
+while i<30_000_000 # while loop 1
   i+= 1
   !obj
 end
diff --git a/benchmark/bm_vm1_rescue.rb b/benchmark/bm_vm1_rescue.rb
index 0c98d00e0d..3af12bb0f3 100644
--- a/benchmark/bm_vm1_rescue.rb
+++ b/benchmark/bm_vm1_rescue.rb
@@ -1,5 +1,5 @@
 i=0
-while i<30000000 # while loop 1
+while i<30_000_000 # while loop 1
   i+=1
   begin
   rescue
diff --git a/benchmark/bm_vm1_simplereturn.rb b/benchmark/bm_vm1_simplereturn.rb
index c843ee3d97..8e9bcb0129 100644
--- a/benchmark/bm_vm1_simplereturn.rb
+++ b/benchmark/bm_vm1_simplereturn.rb
@@ -2,7 +2,7 @@ def m
   return 1
 end
 i=0
-while i<30000000 # while loop 1
+while i<30_000_000 # while loop 1
   i+=1
   m
 end
diff --git a/benchmark/bm_vm1_swap.rb b/benchmark/bm_vm1_swap.rb
index a565b6f6dc..611baf6b99 100644
--- a/benchmark/bm_vm1_swap.rb
+++ b/benchmark/bm_vm1_swap.rb
@@ -1,7 +1,7 @@
 a = 1
 b = 2
 i=0
-while i<30000000 # while loop 1
+while i<30_000_000 # while loop 1
   i+=1
   a, b = b, a
 end
diff --git a/benchmark/bm_vm2_array.rb b/benchmark/bm_vm2_array.rb
index e29c11200f..7713ae9f25 100644
--- a/benchmark/bm_vm2_array.rb
+++ b/benchmark/bm_vm2_array.rb
@@ -1,5 +1,5 @@
 i=0
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   i+=1
   a = [1,2,3,4,5,6,7,8,9,10]
 end
diff --git a/benchmark/bm_vm2_case.rb b/benchmark/bm_vm2_case.rb
index 1ec34ad692..cd09788a85 100644
--- a/benchmark/bm_vm2_case.rb
+++ b/benchmark/bm_vm2_case.rb
@@ -1,5 +1,5 @@
 i=0
-while i<6000000 # while loop 2
+while i<6_000_000 # while loop 2
   case :foo
   when :bar
     raise
diff --git a/benchmark/bm_vm2_defined_method.rb b/benchmark/bm_vm2_defined_method.rb
index a14c43f856..06c0d01baa 100644
--- a/benchmark/bm_vm2_defined_method.rb
+++ b/benchmark/bm_vm2_defined_method.rb
@@ -3,7 +3,7 @@ class Object
 end
 
 i=0
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   i+=1
   m; m; m; m; m; m; m; m;
 end
diff --git a/benchmark/bm_vm2_eval.rb b/benchmark/bm_vm2_eval.rb
index 375dccc00e..e72b4661ac 100644
--- a/benchmark/bm_vm2_eval.rb
+++ b/benchmark/bm_vm2_eval.rb
@@ -1,5 +1,5 @@
 i=0
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   i+=1
   eval("1")
 end
diff --git a/benchmark/bm_vm2_method.rb b/benchmark/bm_vm2_method.rb
index cc94b8ab3d..f92e39a73f 100644
--- a/benchmark/bm_vm2_method.rb
+++ b/benchmark/bm_vm2_method.rb
@@ -3,7 +3,7 @@ def m
 end
 
 i=0
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   i+=1
   m; m; m; m; m; m; m; m;
 end
diff --git a/benchmark/bm_vm2_mutex.rb b/benchmark/bm_vm2_mutex.rb
index 9ec1a0f136..01b1c478cb 100644
--- a/benchmark/bm_vm2_mutex.rb
+++ b/benchmark/bm_vm2_mutex.rb
@@ -3,7 +3,7 @@ require 'thread'
 m = Mutex.new
 
 i=0
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   i+=1
   m.synchronize{}
 end
diff --git a/benchmark/bm_vm2_poly_method.rb b/benchmark/bm_vm2_poly_method.rb
index ac9953ce5f..921457d817 100644
--- a/benchmark/bm_vm2_poly_method.rb
+++ b/benchmark/bm_vm2_poly_method.rb
@@ -13,7 +13,7 @@ o1 = C1.new
 o2 = C2.new
 
 i=0
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   o = (i % 2 == 0) ? o1 : o2
   o.m; o.m; o.m; o.m; o.m; o.m; o.m; o.m
   i+=1
diff --git a/benchmark/bm_vm2_poly_method_ov.rb b/benchmark/bm_vm2_poly_method_ov.rb
index 856ba9b161..bf09837dd7 100644
--- a/benchmark/bm_vm2_poly_method_ov.rb
+++ b/benchmark/bm_vm2_poly_method_ov.rb
@@ -13,7 +13,7 @@ o1 = C1.new
 o2 = C2.new
 
 i=0
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   o = (i % 2 == 0) ? o1 : o2
 #  o.m; o.m; o.m; o.m; o.m; o.m; o.m; o.m
   i+=1
diff --git a/benchmark/bm_vm2_proc.rb b/benchmark/bm_vm2_proc.rb
index 0bd05b9544..3f51056bf9 100644
--- a/benchmark/bm_vm2_proc.rb
+++ b/benchmark/bm_vm2_proc.rb
@@ -7,7 +7,7 @@ pr = m{
 }
 
 i=0
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   i+=1
   pr.call
 end
diff --git a/benchmark/bm_vm2_regexp.rb b/benchmark/bm_vm2_regexp.rb
index 44f6ed402e..428099e55a 100644
--- a/benchmark/bm_vm2_regexp.rb
+++ b/benchmark/bm_vm2_regexp.rb
@@ -1,6 +1,6 @@
 i=0
 str = 'xxxhogexxx'
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   /hoge/ =~ str
   i+=1
 end
diff --git a/benchmark/bm_vm2_send.rb b/benchmark/bm_vm2_send.rb
index c20dbdd26c..37c79fb1c3 100644
--- a/benchmark/bm_vm2_send.rb
+++ b/benchmark/bm_vm2_send.rb
@@ -6,7 +6,7 @@ end
 o = C.new
 
 i=0
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   i+=1
   o.__send__ :m
 end
diff --git a/benchmark/bm_vm2_super.rb b/benchmark/bm_vm2_super.rb
index 70c86b376f..d4f0b647de 100644
--- a/benchmark/bm_vm2_super.rb
+++ b/benchmark/bm_vm2_super.rb
@@ -14,7 +14,7 @@ end
 obj = CC.new
 
 i = 0
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   obj.m
   i+=1
 end
diff --git a/benchmark/bm_vm2_unif1.rb b/benchmark/bm_vm2_unif1.rb
index e12bd2ade0..775f4d37e6 100644
--- a/benchmark/bm_vm2_unif1.rb
+++ b/benchmark/bm_vm2_unif1.rb
@@ -2,7 +2,7 @@ i = 0
 def m a, b
 end
 
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   i+=1
   m 100, 200
 end
diff --git a/benchmark/bm_vm2_zsuper.rb b/benchmark/bm_vm2_zsuper.rb
index 3a75960403..7e90df1822 100644
--- a/benchmark/bm_vm2_zsuper.rb
+++ b/benchmark/bm_vm2_zsuper.rb
@@ -14,7 +14,7 @@ end
 
 obj = CC.new
 
-while i<6000000 # benchmark loop 2
+while i<6_000_000 # benchmark loop 2
   obj.m 10
   i+=1
 end
diff --git a/benchmark/bm_vm_thread_alive_check1.rb b/benchmark/bm_vm_thread_alive_check1.rb
index aebe99875d..c993accdda 100644
--- a/benchmark/bm_vm_thread_alive_check1.rb
+++ b/benchmark/bm_vm_thread_alive_check1.rb
@@ -1,4 +1,4 @@
-5000.times{
+5_000.times{
   t = Thread.new{}
   while t.alive?
     Thread.pass
diff --git a/benchmark/bm_vm_thread_mutex1.rb b/benchmark/bm_vm_thread_mutex1.rb
index faf8da122f..588506e87c 100644
--- a/benchmark/bm_vm_thread_mutex1.rb
+++ b/benchmark/bm_vm_thread_mutex1.rb
@@ -3,7 +3,7 @@
 require 'thread'
 m = Mutex.new
 r = 0
-max = 1000
+max = 2000
 lmax = max * max
 (1..1).map{
   Thread.new{
diff --git a/benchmark/bm_vm_thread_mutex2.rb b/benchmark/bm_vm_thread_mutex2.rb
index a74e2fd490..d700b146d4 100644
--- a/benchmark/bm_vm_thread_mutex2.rb
+++ b/benchmark/bm_vm_thread_mutex2.rb
@@ -3,7 +3,7 @@
 require 'thread'
 m = Mutex.new
 r = 0
-max = 1000
+max = 2000
 lmax = (max * max)/2
 (1..2).map{
   Thread.new{
diff --git a/benchmark/bm_vm_thread_mutex3.rb b/benchmark/bm_vm_thread_mutex3.rb
index ae02e20ea0..f502b6ac84 100644
--- a/benchmark/bm_vm_thread_mutex3.rb
+++ b/benchmark/bm_vm_thread_mutex3.rb
@@ -3,7 +3,7 @@
 require 'thread'
 m = Mutex.new
 r = 0
-max = 1000
+max = 2000
 (1..max).map{
   Thread.new{
     i=0
-- 
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