* lib/benchmark.rb: Update Benchmark results on newer CPU

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40529 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 38 insertions, 40 deletions

diff --git a/lib/benchmark.rb b/lib/benchmark.rb
index f52ba7df34..93b841c451 100644
--- a/lib/benchmark.rb
+++ b/lib/benchmark.rb
@@ -19,15 +19,15 @@
 # used to execute Ruby code.
 #
 # * Measure the time to construct the string given by the expression
-#   <code>"a"*1_000_000</code>:
+#   <code>"a"*1_000_000_000</code>:
 #
 #       require 'benchmark'
 #
-#       puts Benchmark.measure { "a"*1_000_000 }
+#       puts Benchmark.measure { "a"*1_000_000_000 }
 #
-#   On my machine (FreeBSD 3.2 on P5, 100MHz) this generates:
+#   On my machine (OSX 10.8.3 on i5 1.7 Ghz) this generates:
 #
-#       1.166667   0.050000   1.216667 (  0.571355)
+#       0.350000   0.400000   0.750000 (  0.835234)
 #
 #   This report shows the user CPU time, system CPU time, the sum of
 #   the user and system CPU times, and the elapsed real time. The unit
@@ -37,7 +37,7 @@
 #
 #       require 'benchmark'
 #
-#       n = 50000
+#       n = 5000000
 #       Benchmark.bm do |x|
 #         x.report { for i in 1..n; a = "1"; end }
 #         x.report { n.times do   ; a = "1"; end }
@@ -47,15 +47,15 @@
 #   The result:
 #
 #              user     system      total        real
-#          1.033333   0.016667   1.016667 (  0.492106)
-#          1.483333   0.000000   1.483333 (  0.694605)
-#          1.516667   0.000000   1.516667 (  0.711077)
+#          1.010000   0.000000   1.010000 (  1.014479)
+#          1.000000   0.000000   1.000000 (  0.998261)
+#          0.980000   0.000000   0.980000 (  0.981335)
 #
 # * Continuing the previous example, put a label in each report:
 #
 #       require 'benchmark'
 #
-#       n = 50000
+#       n = 5000000
 #       Benchmark.bm(7) do |x|
 #         x.report("for:")   { for i in 1..n; a = "1"; end }
 #         x.report("times:") { n.times do   ; a = "1"; end }
@@ -65,10 +65,9 @@
 # The result:
 #
 #                     user     system      total        real
-#        for:     1.050000   0.000000   1.050000 (  0.503462)
-#        times:   1.533333   0.016667   1.550000 (  0.735473)
-#        upto:    1.500000   0.016667   1.516667 (  0.711239)
-#
+#       for:      1.010000   0.000000   1.010000 (  1.015688)
+#       times:    1.000000   0.000000   1.000000 (  1.003611)
+#       upto:     1.030000   0.000000   1.030000 (  1.028098)
 #
 # * The times for some benchmarks depend on the order in which items
 #   are run.  These differences are due to the cost of memory
@@ -88,14 +87,13 @@
 #   The result:
 #
 #        Rehearsal -----------------------------------------
-#        sort!  11.928000   0.010000  11.938000 ( 12.756000)
-#        sort   13.048000   0.020000  13.068000 ( 13.857000)
-#        ------------------------------- total: 25.006000sec
+#        sort!   1.490000   0.010000   1.500000 (  1.490520)
+#        sort    1.460000   0.000000   1.460000 (  1.463025)
+#        -------------------------------- total: 2.960000sec
 #
 #                    user     system      total        real
-#        sort!  12.959000   0.010000  12.969000 ( 13.793000)
-#        sort   12.007000   0.000000  12.007000 ( 12.791000)
-#
+#        sort!   1.460000   0.000000   1.460000 (  1.460465)
+#        sort    1.450000   0.010000   1.460000 (  1.448327)
 #
 # * Report statistics of sequential experiments with unique labels,
 #   using the #benchmark method:
@@ -103,7 +101,7 @@
 #       require 'benchmark'
 #       include Benchmark         # we need the CAPTION and FORMAT constants
 #
-#       n = 50000
+#       n = 5000000
 #       Benchmark.benchmark(CAPTION, 7, FORMAT, ">total:", ">avg:") do |x|
 #         tf = x.report("for:")   { for i in 1..n; a = "1"; end }
 #         tt = x.report("times:") { n.times do   ; a = "1"; end }
@@ -114,11 +112,11 @@
 #   The result:
 #
 #                     user     system      total        real
-#        for:     1.016667   0.016667   1.033333 (  0.485749)
-#        times:   1.450000   0.016667   1.466667 (  0.681367)
-#        upto:    1.533333   0.000000   1.533333 (  0.722166)
-#        >total:  4.000000   0.033333   4.033333 (  1.889282)
-#        >avg:    1.333333   0.011111   1.344444 (  0.629761)
+#        for:      0.950000   0.000000   0.950000 (  0.952039)
+#        times:    0.980000   0.000000   0.980000 (  0.984938)
+#        upto:     0.950000   0.000000   0.950000 (  0.946787)
+#        >total:   2.880000   0.000000   2.880000 (  2.883764)
+#        >avg:     0.960000   0.000000   0.960000 (  0.961255)
 
 module Benchmark
 
@@ -145,7 +143,7 @@ module Benchmark
   #     require 'benchmark'
   #     include Benchmark          # we need the CAPTION and FORMAT constants
   #
-  #     n = 50000
+  #     n = 5000000
   #     Benchmark.benchmark(CAPTION, 7, FORMAT, ">total:", ">avg:") do |x|
   #       tf = x.report("for:")   { for i in 1..n; a = "1"; end }
   #       tt = x.report("times:") { n.times do   ; a = "1"; end }
@@ -156,11 +154,11 @@ module Benchmark
   # Generates:
   #
   #                     user     system      total        real
-  #        for:     1.016667   0.016667   1.033333 (  0.485749)
-  #        times:   1.450000   0.016667   1.466667 (  0.681367)
-  #        upto:    1.533333   0.000000   1.533333 (  0.722166)
-  #        >total:  4.000000   0.033333   4.033333 (  1.889282)
-  #        >avg:    1.333333   0.011111   1.344444 (  0.629761)
+  #       for:      0.970000   0.000000   0.970000 (  0.970493)
+  #       times:    0.990000   0.000000   0.990000 (  0.989542)
+  #       upto:     0.970000   0.000000   0.970000 (  0.972854)
+  #       >total:   2.930000   0.000000   2.930000 (  2.932889)
+  #       >avg:     0.976667   0.000000   0.976667 (  0.977630)
   #
 
   def benchmark(caption = "", label_width = nil, format = nil, *labels) # :yield: report
@@ -187,7 +185,7 @@ module Benchmark
   #
   #     require 'benchmark'
   #
-  #     n = 50000
+  #     n = 5000000
   #     Benchmark.bm(7) do |x|
   #       x.report("for:")   { for i in 1..n; a = "1"; end }
   #       x.report("times:") { n.times do   ; a = "1"; end }
@@ -197,9 +195,9 @@ module Benchmark
   # Generates:
   #
   #                     user     system      total        real
-  #        for:     1.050000   0.000000   1.050000 (  0.503462)
-  #        times:   1.533333   0.016667   1.550000 (  0.735473)
-  #        upto:    1.500000   0.016667   1.516667 (  0.711239)
+  #       for:      0.960000   0.000000   0.960000 (  0.957966)
+  #       times:    0.960000   0.000000   0.960000 (  0.960423)
+  #       upto:     0.950000   0.000000   0.950000 (  0.954864)
   #
 
   def bm(label_width = 0, *labels, &blk) # :yield: report
@@ -233,13 +231,13 @@ module Benchmark
   # Generates:
   #
   #        Rehearsal -----------------------------------------
-  #        sort!  11.928000   0.010000  11.938000 ( 12.756000)
-  #        sort   13.048000   0.020000  13.068000 ( 13.857000)
-  #        ------------------------------- total: 25.006000sec
+  #        sort!   1.440000   0.010000   1.450000 (  1.446833)
+  #        sort    1.440000   0.000000   1.440000 (  1.448257)
+  #        -------------------------------- total: 2.890000sec
   #
   #                    user     system      total        real
-  #        sort!  12.959000   0.010000  12.969000 ( 13.793000)
-  #        sort   12.007000   0.000000  12.007000 ( 12.791000)
+  #        sort!   1.460000   0.000000   1.460000 (  1.458065)
+  #        sort    1.450000   0.000000   1.450000 (  1.455963)
   #
   # #bmbm yields a Benchmark::Job object and returns an array of
   # Benchmark::Tms objects.