Bug #6533 » 0002-Benchmark-documenation-formatting-bug-and-consistency.patch
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# used to execute Ruby code.
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#
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# * Measure the time to construct the string given by the expression
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# <tt>"a"*1_000_000</tt>:
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# <code>"a"*1_000_000</code>:
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#
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# require 'benchmark'
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#
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| ... | ... | |
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module Benchmark
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BENCHMARK_VERSION = "2002-04-25" #:nodoc"
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BENCHMARK_VERSION = "2002-04-25" # :nodoc:
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# Invokes the block with a <tt>Benchmark::Report</tt> object, which
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# Invokes the block with a Benchmark::Report 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 _format_ to format each line.
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# benchmark tests. Reserves +label_width+ 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 +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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# Benchmark::Tms objects, these will be used to format
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# additional lines of output. If +label+ parameters are
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# given, these are used to label these extra lines.
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#
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# _Note_: Other methods provide a simpler interface to this one, and are
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| ... | ... | |
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# [tf+tt+tu, (tf+tt+tu)/3]
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# end
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#
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# <i>Generates:</i>
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# _Generates:_
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#
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# user system total real
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# for: 1.016667 0.016667 1.033333 ( 0.485749)
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| ... | ... | |
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# x.report("upto:") { 1.upto(n) do ; a = "1"; end }
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# end
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#
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# <i>Generates:</i>
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# _Generates:_
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#
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# user system total real
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# for: 1.050000 0.000000 1.050000 ( 0.503462)
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| ... | ... | |
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# that run later. #bmbm attempts to minimize this effect by running
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# the tests twice, the first time as a rehearsal in order to get the
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# runtime environment stable, the second time for
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# real. <tt>GC.start</tt> is executed before the start of each of
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# real. GC.start is executed before the start of each of
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# the real timings; the cost of this is not included in the
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# timings. In reality, though, there's only so much that #bmbm can
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# do, and the results are not guaranteed to be isolated from garbage
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| ... | ... | |
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# x.report("sort") { array.dup.sort }
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# end
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#
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# <i>Generates:</i>
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# _Generates:_
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#
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# Rehearsal -----------------------------------------
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# sort! 11.928000 0.010000 11.938000 ( 12.756000)
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| ... | ... | |
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# Returns an initialized Job instance.
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# Usually, one doesn't call this method directly, as new
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# Job objects are created by the #bmbm method.
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# _width_ is a initial value for the label offset used in formatting;
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# the #bmbm method passes its _width_ argument to this constructor.
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# +width+ is a initial value for the label offset used in formatting;
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# the #bmbm method passes its +width+ argument to this constructor.
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#
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def initialize(width)
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@width = width
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| ... | ... | |
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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 _format_ 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, format = nil)
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| ... | ... | |
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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 _format_. See Tms#format for the
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# Prints the +label+ and measured time for the block,
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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 = "", *format, &blk) # :yield:
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| ... | ... | |
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# Elapsed real time
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attr_reader :real
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# Total time, that is _utime_ + _stime_ + _cutime_ + _cstime_
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# Total time, that is +utime+ + +stime+ + +cutime+ + +cstime+
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attr_reader :total
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# Label
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| ... | ... | |
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#
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# Returns an initialized Tms object which has
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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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# +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(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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| ... | ... | |
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#
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# Returns a new Tms object whose times are the sum of the times for this
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# Tms object, plus the time required to execute the code block (_blk_).
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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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| ... | ... | |
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end
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protected
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#
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# Returns a new Tms object obtained by memberwise operation +op+
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# of the individual times for this Tms object with those of the other
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