зеркало из https://github.com/github/ruby.git
* lib/benchmark.rb: fix benchmarck to work with current ruby.
patched by Benoit Daloze [ruby-core:33846] [ruby-dev:43143] merged from https://github.com/eregon/ruby/commits/benchmark * lib/benchmark (Report#width): update documentation * lib/benchmark: document the return value of #benchmark and the :list attribute in Report * lib/benchmark (Tms#format): rename variables, use String#% instead of Kernel.format * lib/benchmark: remove undocumented Benchmark::times (an alias of Process::times used twice) * lib/benchmark (#benchmark): use label_width for the caption * lib/benchmark (Tms#initialize): rename variables * lib/benchmark: allow title to not be a String and call #to_s * lib/benchmark (Benchmark#bm): return an Array of the times with the labels * lib/benchmark: correct output for Benchmark#bmbm (remove the extra space) * lib/benchmark: add a few tests for Benchmark::Tms output * lib/benchmark: improve style (enumerators, ljust, unused vars) * lib/benchmark: add spec about output and return value * lib/benchmark: improve basic style and consistency no parenthesis for print and use interpolation instead of printf * lib/benchmark: remove unnecessary conversions and variables * lib/benchmark: correct indentation * lib/benchmark: rename the FMTSTR constant and variable to FORMAT * lib/benchmark: remove useless exception * test/benchmark: remove unused variable warnings git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30747 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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32
ChangeLog
32
ChangeLog
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@ -1,3 +1,35 @@
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Tue Feb 1 00:10:30 2011 NARUSE, Yui <naruse@ruby-lang.org>
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* lib/benchmark.rb: fix benchmarck to work with current ruby.
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patched by Benoit Daloze [ruby-core:33846] [ruby-dev:43143]
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merged from https://github.com/eregon/ruby/commits/benchmark
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* lib/benchmark (Report#width): update documentation
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* lib/benchmark: document the return value of #benchmark and the
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:list attribute in Report
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* lib/benchmark (Tms#format): rename variables, use String#%
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instead of Kernel.format
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* lib/benchmark: remove undocumented Benchmark::times (an alias
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of Process::times used twice)
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* lib/benchmark (#benchmark): use label_width for the caption
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* lib/benchmark (Tms#initialize): rename variables
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* lib/benchmark: allow title to not be a String and call #to_s
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* lib/benchmark (Benchmark#bm): return an Array of the times with
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the labels
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* lib/benchmark: correct output for Benchmark#bmbm
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(remove the extra space)
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* lib/benchmark: add a few tests for Benchmark::Tms output
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* lib/benchmark: improve style (enumerators, ljust, unused vars)
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* lib/benchmark: add spec about output and return value
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* lib/benchmark: improve basic style and consistency
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no parenthesis for print and use interpolation instead of printf
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* lib/benchmark: remove unnecessary conversions and variables
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* lib/benchmark: correct indentation
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* lib/benchmark: rename the FMTSTR constant and variable to FORMAT
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* lib/benchmark: remove useless exception
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* test/benchmark: remove unused variable warnings
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Mon Jan 31 23:27:23 2011 CHIKANAGA Tomoyuki <nagachika00@gmail.com>
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* node.c (add_id): remove duplicated rb_id2str() call.
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157
lib/benchmark.rb
157
lib/benchmark.rb
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@ -103,10 +103,10 @@
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# using the #benchmark method:
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#
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# require 'benchmark'
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# include Benchmark # we need the CAPTION and FMTSTR constants
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# include Benchmark # we need the CAPTION and FORMAT constants
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#
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# n = 50000
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# Benchmark.benchmark(" "*7 + CAPTION, 7, FMTSTR, ">total:", ">avg:") do |x|
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# Benchmark.benchmark(CAPTION, 7, FORMAT, ">total:", ">avg:") do |x|
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# tf = x.report("for:") { for i in 1..n; a = "1"; end }
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# tt = x.report("times:") { n.times do ; a = "1"; end }
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# tu = x.report("upto:") { 1.upto(n) do ; a = "1"; end }
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@ -126,16 +126,13 @@ module Benchmark
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BENCHMARK_VERSION = "2002-04-25" #:nodoc"
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def Benchmark::times() # :nodoc:
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Process::times()
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end
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# Invokes the block with a <tt>Benchmark::Report</tt> object, which
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# may be used to collect and report on the results of individual
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# benchmark tests. Reserves <i>label_width</i> leading spaces for
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# labels on each line. Prints _caption_ at the top of the
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# report, and uses _fmt_ to format each line.
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# report, and uses _format_ to format each line.
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# Returns an array of Benchmark::Tms objects.
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#
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# If the block returns an array of
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# <tt>Benchmark::Tms</tt> objects, these will be used to format
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# additional lines of output. If _label_ parameters are
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@ -148,10 +145,10 @@ module Benchmark
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# Example:
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#
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# require 'benchmark'
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# include Benchmark # we need the CAPTION and FMTSTR constants
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# include Benchmark # we need the CAPTION and FORMAT constants
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#
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# n = 50000
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# Benchmark.benchmark(" "*7 + CAPTION, 7, FMTSTR, ">total:", ">avg:") do |x|
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# Benchmark.benchmark(CAPTION, 7, FORMAT, ">total:", ">avg:") do |x|
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# tf = x.report("for:") { for i in 1..n; a = "1"; end }
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# tt = x.report("times:") { n.times do ; a = "1"; end }
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# tu = x.report("upto:") { 1.upto(n) do ; a = "1"; end }
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@ -168,19 +165,19 @@ module Benchmark
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# >avg: 1.333333 0.011111 1.344444 ( 0.629761)
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#
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def benchmark(caption = "", label_width = nil, fmtstr = nil, *labels) # :yield: report
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def benchmark(caption = "", label_width = nil, format = nil, *labels) # :yield: report
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sync = STDOUT.sync
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STDOUT.sync = true
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label_width ||= 0
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fmtstr ||= FMTSTR
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raise ArgumentError, "no block" unless iterator?
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print caption
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results = yield(Report.new(label_width, fmtstr))
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format ||= FORMAT
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print ' '*label_width + caption
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report = Report.new(label_width, format)
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results = yield(report)
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Array === results and results.grep(Tms).each {|t|
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print((labels.shift || t.label || "").ljust(label_width),
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t.format(fmtstr))
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print((labels.shift || t.label || "").ljust(label_width), t.format(format))
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}
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STDOUT.sync = sync
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report.list
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end
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@ -205,7 +202,7 @@ module Benchmark
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#
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def bm(label_width = 0, *labels, &blk) # :yield: report
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benchmark(" "*label_width + CAPTION, label_width, FMTSTR, *labels, &blk)
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benchmark(CAPTION, label_width, FORMAT, *labels, &blk)
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end
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@ -254,35 +251,24 @@ module Benchmark
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STDOUT.sync = true
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# rehearsal
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print "Rehearsal "
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puts '-'*(width+CAPTION.length - "Rehearsal ".length)
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list = []
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job.list.each{|label,item|
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print(label.ljust(width))
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res = Benchmark::measure(&item)
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print res.format()
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list.push res
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}
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sum = Tms.new; list.each{|i| sum += i}
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ets = sum.format("total: %tsec")
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printf("%s %s\n\n",
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"-"*(width+CAPTION.length-ets.length-1), ets)
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puts 'Rehearsal '.ljust(width+CAPTION.length,'-')
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ets = job.list.inject(Tms.new) { |sum,(label,item)|
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print label.ljust(width)
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res = Benchmark.measure(&item)
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print res.format
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sum + res
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}.format("total: %tsec")
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print " #{ets}\n\n".rjust(width+CAPTION.length+2,'-')
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# take
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print ' '*width, CAPTION
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list = []
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ary = []
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job.list.each{|label,item|
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GC::start
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print ' '*width + CAPTION
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job.list.map { |label,item|
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GC.start
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print label.ljust(width)
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res = Benchmark::measure(&item)
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print res.format()
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ary.push res
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list.push [label, res]
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Benchmark.measure(&item).tap { |res| print res.format }
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}.tap {
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STDOUT.sync = sync
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}
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STDOUT.sync = sync
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ary
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end
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#
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@ -290,9 +276,9 @@ module Benchmark
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# Benchmark::Tms object.
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#
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def measure(label = "") # :yield:
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t0, r0 = Benchmark.times, Time.now
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t0, r0 = Process.times, Time.now
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yield
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t1, r1 = Benchmark.times, Time.now
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t1, r1 = Process.times, Time.now
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Benchmark::Tms.new(t1.utime - t0.utime,
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t1.stime - t0.stime,
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t1.cutime - t0.cutime,
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@ -307,11 +293,10 @@ module Benchmark
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def realtime(&blk) # :yield:
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r0 = Time.now
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yield
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r1 = Time.now
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r1.to_f - r0.to_f
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Time.now - r0
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end
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module_function :benchmark, :measure, :realtime, :bm, :bmbm
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#
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# A Job is a sequence of labelled blocks to be processed by the
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@ -335,10 +320,10 @@ module Benchmark
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#
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def item(label = "", &blk) # :yield:
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raise ArgumentError, "no block" unless block_given?
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label += ' '
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label = label.to_s
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w = label.length
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@width = w if @width < w
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@list.push [label, blk]
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@list << [label, blk]
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self
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end
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@ -347,14 +332,10 @@ module Benchmark
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# An array of 2-element arrays, consisting of label and block pairs.
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attr_reader :list
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# Length of the widest label in the #list, plus one.
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# Length of the widest label in the #list.
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attr_reader :width
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end
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module_function :benchmark, :measure, :realtime, :bm, :bmbm
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#
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# This class is used by the Benchmark.benchmark and Benchmark.bm methods.
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# It is of little direct interest to the user.
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@ -364,26 +345,29 @@ module Benchmark
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# Returns an initialized Report instance.
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# Usually, one doesn't call this method directly, as new
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# Report objects are created by the #benchmark and #bm methods.
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# _width_ and _fmtstr_ are the label offset and
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# _width_ and _format_ are the label offset and
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# format string used by Tms#format.
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#
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def initialize(width = 0, fmtstr = nil)
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@width, @fmtstr = width, fmtstr
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def initialize(width = 0, format = nil)
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@width, @format, @list = width, format, []
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end
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#
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# Prints the _label_ and measured time for the block,
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# formatted by _fmt_. See Tms#format for the
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# formatted by _format_. See Tms#format for the
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# formatting rules.
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#
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def item(label = "", *fmt, &blk) # :yield:
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print label.ljust(@width)
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res = Benchmark::measure(&blk)
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print res.format(@fmtstr, *fmt)
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def item(label = "", *format, &blk) # :yield:
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print label.to_s.ljust(@width)
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@list << res = Benchmark.measure(label, &blk)
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print res.format(@format, *format)
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res
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end
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alias report item
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# An array of Benchmark::Tms objects representing each item.
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attr_reader :list
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end
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@ -394,7 +378,7 @@ module Benchmark
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#
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class Tms
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CAPTION = " user system total real\n"
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FMTSTR = "%10.6u %10.6y %10.6t %10.6r\n"
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FORMAT = "%10.6u %10.6y %10.6t %10.6r\n"
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# User CPU time
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attr_reader :utime
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@ -419,13 +403,12 @@ module Benchmark
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#
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# Returns an initialized Tms object which has
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# _u_ as the user CPU time, _s_ as the system CPU time,
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# _cu_ as the children's user CPU time, _cs_ as the children's
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# system CPU time, _real_ as the elapsed real time and _l_
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# as the label.
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# _utime_ as the user CPU time, _stime_ as the system CPU time,
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# _cutime_ as the children's user CPU time, _cstime_ as the children's
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# system CPU time, _real_ as the elapsed real time and _label_ as the label.
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#
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def initialize(u = 0.0, s = 0.0, cu = 0.0, cs = 0.0, real = 0.0, l = nil)
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@utime, @stime, @cutime, @cstime, @real, @label = u, s, cu, cs, real, l
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def initialize(utime = 0.0, stime = 0.0, cutime = 0.0, cstime = 0.0, real = 0.0, label = nil)
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@utime, @stime, @cutime, @cstime, @real, @label = utime, stime, cutime, cstime, real, label.to_s
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@total = @utime + @stime + @cutime + @cstime
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end
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@ -434,14 +417,14 @@ module Benchmark
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# Tms object, plus the time required to execute the code block (_blk_).
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#
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def add(&blk) # :yield:
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self + Benchmark::measure(&blk)
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self + Benchmark.measure(&blk)
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end
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#
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# An in-place version of #add.
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#
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def add!(&blk)
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t = Benchmark::measure(&blk)
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t = Benchmark.measure(&blk)
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@utime = utime + t.utime
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@stime = stime + t.stime
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@cutime = cutime + t.cutime
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|
@ -492,19 +475,19 @@ module Benchmark
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# <tt>%r</tt>:: Replaced by the elapsed real time, as reported by Tms#real
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# <tt>%n</tt>:: Replaced by the label string, as reported by Tms#label (Mnemonic: n of "*n*ame")
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#
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# If _fmtstr_ is not given, FMTSTR is used as default value, detailing the
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# If _format_ is not given, FORMAT is used as default value, detailing the
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# user, system and real elapsed time.
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#
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def format(arg0 = nil, *args)
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fmtstr = (arg0 || FMTSTR).dup
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fmtstr.gsub!(/(%[-+\.\d]*)n/){"#{$1}s" % label}
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fmtstr.gsub!(/(%[-+\.\d]*)u/){"#{$1}f" % utime}
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fmtstr.gsub!(/(%[-+\.\d]*)y/){"#{$1}f" % stime}
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fmtstr.gsub!(/(%[-+\.\d]*)U/){"#{$1}f" % cutime}
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fmtstr.gsub!(/(%[-+\.\d]*)Y/){"#{$1}f" % cstime}
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fmtstr.gsub!(/(%[-+\.\d]*)t/){"#{$1}f" % total}
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fmtstr.gsub!(/(%[-+\.\d]*)r/){"(#{$1}f)" % real}
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arg0 ? Kernel::format(fmtstr, *args) : fmtstr
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def format(format = nil, *args)
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str = (format || FORMAT).dup
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str.gsub!(/(%[-+\.\d]*)n/) { "#{$1}s" % label }
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str.gsub!(/(%[-+\.\d]*)u/) { "#{$1}f" % utime }
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str.gsub!(/(%[-+\.\d]*)y/) { "#{$1}f" % stime }
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str.gsub!(/(%[-+\.\d]*)U/) { "#{$1}f" % cutime }
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str.gsub!(/(%[-+\.\d]*)Y/) { "#{$1}f" % cstime }
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str.gsub!(/(%[-+\.\d]*)t/) { "#{$1}f" % total }
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str.gsub!(/(%[-+\.\d]*)r/) { "(#{$1}f)" % real }
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format ? str % args : str
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end
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#
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|
@ -549,7 +532,7 @@ module Benchmark
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CAPTION = Benchmark::Tms::CAPTION
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# The default format string used to display times. See also Benchmark::Tms#format.
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FMTSTR = Benchmark::Tms::FMTSTR
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FORMAT = Benchmark::Tms::FORMAT
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end
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|
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if __FILE__ == $0
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|
@ -557,15 +540,15 @@ if __FILE__ == $0
|
|||
|
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n = ARGV[0].to_i.nonzero? || 50000
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puts %Q([#{n} times iterations of `a = "1"'])
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benchmark(" " + CAPTION, 7, FMTSTR) do |x|
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x.report("for:") {for _ in 1..n; _ = "1"; end} # Benchmark::measure
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benchmark(" " + CAPTION, 7, FORMAT) do |x|
|
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x.report("for:") {for _ in 1..n; _ = "1"; end} # Benchmark.measure
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x.report("times:") {n.times do ; _ = "1"; end}
|
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x.report("upto:") {1.upto(n) do ; _ = "1"; end}
|
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end
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|
||||
benchmark do
|
||||
[
|
||||
measure{for _ in 1..n; _ = "1"; end}, # Benchmark::measure
|
||||
measure{for _ in 1..n; _ = "1"; end}, # Benchmark.measure
|
||||
measure{n.times do ; _ = "1"; end},
|
||||
measure{1.upto(n) do ; _ = "1"; end}
|
||||
]
|
||||
|
|
|
@ -1,10 +1,166 @@
|
|||
require "test/unit"
|
||||
require "benchmark"
|
||||
require 'minitest/spec'
|
||||
require 'benchmark'
|
||||
|
||||
class TestBenchmark < Test::Unit::TestCase
|
||||
def test_add!
|
||||
assert_nothing_raised("[ruby-dev:40906]") do
|
||||
Benchmark::Tms.new.add! {}
|
||||
MiniTest::Unit.autorun
|
||||
|
||||
describe Benchmark do
|
||||
BENCH_FOR_TIMES_UPTO = lambda do |x|
|
||||
n = 1000
|
||||
tf = x.report("for:") { for _ in 1..n; '1'; end }
|
||||
tt = x.report("times:") { n.times do ; '1'; end }
|
||||
tu = x.report("upto:") { 1.upto(n) do ; '1'; end }
|
||||
[tf+tt+tu, (tf+tt+tu)/3]
|
||||
end
|
||||
|
||||
BENCH_FOR_TIMES_UPTO_NO_LABEL = lambda do |x|
|
||||
n = 1000
|
||||
x.report { for _ in 1..n; '1'; end }
|
||||
x.report { n.times do ; '1'; end }
|
||||
x.report { 1.upto(n) do ; '1'; end }
|
||||
end
|
||||
|
||||
def labels
|
||||
%w[first second third]
|
||||
end
|
||||
|
||||
def bench(type = :bm, *args, &block)
|
||||
if block
|
||||
Benchmark.send(type, *args, &block)
|
||||
else
|
||||
Benchmark.send(type, *args) do |x|
|
||||
labels.each { |label|
|
||||
x.report(label) {}
|
||||
}
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
def capture_output
|
||||
capture_io { yield }.first.gsub(/\d\.\d{6}/, '--time--')
|
||||
end
|
||||
|
||||
def capture_bench_output(type, *args, &block)
|
||||
capture_output { bench(type, *args, &block) }
|
||||
end
|
||||
|
||||
describe 'Tms' do
|
||||
it 'outputs nicely' do
|
||||
Benchmark::Tms.new.to_s.must_equal " 0.000000 0.000000 0.000000 ( 0.000000)\n"
|
||||
Benchmark::Tms.new(1,2,3,4,5).to_s.must_equal " 1.000000 2.000000 10.000000 ( 5.000000)\n"
|
||||
Benchmark::Tms.new(1,2,3,4,5,'label').format('%u %y %U %Y %t %r %n').must_equal \
|
||||
"1.000000 2.000000 3.000000 4.000000 10.000000 (5.000000) label"
|
||||
Benchmark::Tms.new(1).format('%u %.3f', 2).must_equal "1.000000 2.000"
|
||||
end
|
||||
|
||||
it 'wont modify the format String given' do
|
||||
format = "format %u"
|
||||
Benchmark::Tms.new.format(format)
|
||||
format.must_equal "format %u"
|
||||
end
|
||||
end
|
||||
|
||||
describe 'benchmark' do
|
||||
it 'makes extra calcultations with an Array at the end of the benchmark and show the result' do
|
||||
capture_bench_output(:benchmark,
|
||||
Benchmark::CAPTION, 7,
|
||||
Benchmark::FORMAT, ">total:", ">avg:",
|
||||
&BENCH_FOR_TIMES_UPTO).must_equal BENCHMARK_OUTPUT_WITH_TOTAL_AVG
|
||||
end
|
||||
end
|
||||
|
||||
describe 'bm' do
|
||||
it "returns an Array of the times with the labels" do
|
||||
capture_io do
|
||||
results = bench
|
||||
results.must_be_instance_of Array
|
||||
results.size.must_equal labels.size
|
||||
results.zip(labels).each { |tms, label|
|
||||
tms.must_be_instance_of Benchmark::Tms
|
||||
tms.label.must_equal label
|
||||
}
|
||||
end
|
||||
end
|
||||
|
||||
it 'correctly guess the label width even when not given' do
|
||||
skip :not_implemented
|
||||
capture_bench_output(:bm).must_equal BM_OUTPUT
|
||||
end
|
||||
|
||||
it 'correctly output when the label width is given' do
|
||||
capture_bench_output(:bm, 6).must_equal BM_OUTPUT
|
||||
end
|
||||
|
||||
it 'correctly output when no label is given' do
|
||||
capture_bench_output(:bm, &BENCH_FOR_TIMES_UPTO_NO_LABEL).must_equal BM_OUTPUT_NO_LABEL
|
||||
end
|
||||
|
||||
it 'can make extra calcultations with an array at the end of the benchmark' do
|
||||
capture_bench_output(:bm, 7, ">total:", ">avg:",
|
||||
&BENCH_FOR_TIMES_UPTO).must_equal BENCHMARK_OUTPUT_WITH_TOTAL_AVG
|
||||
end
|
||||
end
|
||||
|
||||
describe 'bmbm' do
|
||||
it 'correctly guess the label width even when not given' do
|
||||
capture_bench_output(:bmbm).must_equal BMBM_OUTPUT
|
||||
end
|
||||
|
||||
it 'correctly output when the label width is given (bmbm ignore it, but it is a frequent mistake)' do
|
||||
capture_bench_output(:bmbm, 6).must_equal BMBM_OUTPUT
|
||||
end
|
||||
end
|
||||
|
||||
describe 'Report' do
|
||||
describe '#item' do
|
||||
it 'shows the title, even if not a string' do
|
||||
capture_bench_output(:bm) { |x| x.report(:title) {} }.must_include 'title'
|
||||
capture_bench_output(:bmbm) { |x| x.report(:title) {} }.must_include 'title'
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
describe 'Bugs' do
|
||||
it '[ruby-dev:40906] can add in-place the time of execution of the block given' do
|
||||
t = Benchmark::Tms.new
|
||||
t.real.must_equal 0
|
||||
t.add! {}
|
||||
t.real.wont_equal 0
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
BM_OUTPUT = <<BENCH
|
||||
user system total real
|
||||
first --time-- --time-- --time-- ( --time--)
|
||||
second --time-- --time-- --time-- ( --time--)
|
||||
third --time-- --time-- --time-- ( --time--)
|
||||
BENCH
|
||||
|
||||
BM_OUTPUT_NO_LABEL = <<BENCH
|
||||
user system total real
|
||||
--time-- --time-- --time-- ( --time--)
|
||||
--time-- --time-- --time-- ( --time--)
|
||||
--time-- --time-- --time-- ( --time--)
|
||||
BENCH
|
||||
|
||||
BMBM_OUTPUT = <<BENCH
|
||||
Rehearsal -----------------------------------------
|
||||
first --time-- --time-- --time-- ( --time--)
|
||||
second --time-- --time-- --time-- ( --time--)
|
||||
third --time-- --time-- --time-- ( --time--)
|
||||
-------------------------------- total: --time--sec
|
||||
|
||||
user system total real
|
||||
first --time-- --time-- --time-- ( --time--)
|
||||
second --time-- --time-- --time-- ( --time--)
|
||||
third --time-- --time-- --time-- ( --time--)
|
||||
BENCH
|
||||
|
||||
BENCHMARK_OUTPUT_WITH_TOTAL_AVG = <<BENCH
|
||||
user system total real
|
||||
for: --time-- --time-- --time-- ( --time--)
|
||||
times: --time-- --time-- --time-- ( --time--)
|
||||
upto: --time-- --time-- --time-- ( --time--)
|
||||
>total: --time-- --time-- --time-- ( --time--)
|
||||
>avg: --time-- --time-- --time-- ( --time--)
|
||||
BENCH
|
||||
|
|
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