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#
# Ruby Benchmark driver
#
require 'optparse'
require 'benchmark'
require 'pp'
class BenchmarkDriver
def self.benchmark(opt)
driver = self.new(opt[:execs], opt[:dir], opt)
begin
driver.run
ensure
driver.show_results
end
end
def initialize execs, dir, opt = {}
@execs = execs.map{|e|
e.strip!
next if e.empty?
v = `#{e} -v`.chomp
v.sub!(' patchlevel 0', '')
[e, v]
}.compact
@dir = dir
@repeat = opt[:repeat] || 1
@repeat = 1 if @repeat < 1
@pattern = opt[:pattern] || nil
@verbose = opt[:quiet] ? false : (opt[:verbose] || false)
@loop_wl1 = @loop_wl2 = nil
@opt = opt
# [[name, [[r-1-1, r-1-2, ...], [r-2-1, r-2-2, ...]]], ...]
@results = []
if @verbose
puts Time.now
@execs.each_with_index{|(e, v), i|
puts "target #{i}: #{v}"
}
end
end
def show_results
if @verbose
puts '-----------------------------------------------------------'
puts 'raw data:'
pp @results
end
puts '-----------------------------------------------------------'
puts 'benchmark results:'
if @verbose and @repeat > 1
puts "minimum results in each #{@repeat} measurements."
end
puts "name\t#{@execs.map{|(e, v)| v}.join("\t")}"
@results.each{|v, result|
rets = []
s = nil
result.each_with_index{|e, i|
r = e.min
case v
when /^vm1_/
if @loop_wl1
r -= @loop_wl1[i]
s = '*'
end
when /^vm2_/
if @loop_wl2
r -= @loop_wl2[i]
s = '*'
end
end
rets << sprintf("%.3f", r)
}
puts "#{v}#{s}\t#{rets.join("\t")}"
}
end
def run
Dir.glob(File.join(@dir, 'bm*.rb')){|file|
next if @pattern && /#{@pattern}/ !~ File.basename(file)
if /bm_vm1_/ =~ file and !@loop_wl1
r = measure_file(File.join(File.dirname(file), 'bm_loop_whileloop.rb'))
@loop_wl1 = r[1].map{|e| e.min}
elsif /bm_vm1_/ =~ file and !@loop_wl2
r = measure_file(File.join(File.dirname(file), 'bm_loop_whileloop2.rb'))
@loop_wl2 = r[1].map{|e| e.min}
end
measure_file(file)
}
end
def measure_file file
name = File.basename(file, '.rb').sub(/^bm_/, '')
prepare_file = File.join(File.dirname(file), "prepare_#{name}.rb")
load prepare_file if FileTest.exist?(prepare_file)
if @verbose
puts '-----------------------------------------------------------'
puts name
puts File.read(file)
puts
end
result = [name]
result << @execs.map{|(e, v)|
(0...@repeat).map{
print "#{v}\t" if @verbose
STDOUT.flush
m = measure e, file
puts "#{m}" if @verbose
m
}
}
@results << result
result
end
def measure executable, file
m = Benchmark.measure{
`#{executable} #{file}`
}
if $? != 0
raise "Benchmark process exited with abnormal status (#{$?})"
end
m.real
end
end
if __FILE__ == $0
opt = {
:execs => ['ruby'],
:dir => './',
:repeat => 1,
}
parser = OptionParser.new{|o|
o.on('-e', '--executables [EXECUTABLES]',
'Specify benchmark targets ("exec1; exec2; exec3, ...")'){|e|
opt[:execs] = e.split(/;/)
}
o.on('-d', '--directory [DIRECTORY]'){|d|
opt[:dir] = d
}
o.on('-p', '--pattern [PATTERN]', "Benchmark name pattern"){|p|
opt[:pattern] = p
}
o.on('-n', '--repeat-num [NUM]', "Repeat count"){|n|
opt[:repeat] = n.to_i
}
o.on('-q', '--quiet'){|q|
opt[:quiet] = q
}
o.on('-v', '--verbose'){|v|
opt[:verbose] = v
}
}
parser.parse!(ARGV)
BenchmarkDriver.benchmark(opt)
end
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