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|
require 'benchmark'
require 'java'
import java.lang.System
puts "Measure bytelist appends (via Java integration)"
5.times {
puts Benchmark.measure {
sb = org.jruby.util.ByteList.new
foo = org.jruby.util.ByteList.plain("foo")
1000000.times {
sb.append(foo)
}
}
}
puts "Measure string appends (via normal Ruby)"
5.times {
puts Benchmark.measure {
str = ""
foo = "foo"
1000000.times {
str << foo
}
}
}
puts "Measure System.currentTimeMillis, int becoming Fixnum"
def System.bench
x = nil
1000000.times {
x = currentTimeMillis
}
end
5.times {
puts Benchmark.measure {
System.bench
}
}
puts "Measure string.length, integer length to fixnum"
5.times {
puts Benchmark.measure {
x = ""
1000000.times {
y = x.length
}
}
}
puts "Measure java.lang.Thread#name, String entering Ruby"
JThread = java::lang::Thread
class JThread
def bench
x = nil
1000000.times {
x = name
}
end
end
5.times {
puts Benchmark.measure {
JThread.currentThread.bench
}
}
puts "Measure ArrayList.set(fixnum, string), String leaving Ruby"
5.times {
puts Benchmark.measure {
str = "foo"
alist = java.util.ArrayList.new(1)
alist << str
1000000.times {
alist.set(0, str)
}
}
}
puts "Measure Fixnum#to_s, String being constructed"
5.times {
puts Benchmark.measure {
x = 1
1000000.times {
y = x.to_s
}
}
}
puts "Measure Integer.valueOf, overloaded call with a primitive"
5.times {
puts Benchmark.measure {
integer = java.lang.Integer
x = 1
1000000.times {
integer.valueOf(x)
}
}
}
puts "Measure ArrayList<Object>.get, non-coercible type entering Ruby"
5.times {
puts Benchmark.measure {
list = java.util.ArrayList.new
list.add(java.lang.Object.new)
1000000.times {
list.get(0)
}
}
}
puts "Measure java.lang.Object.new"
5.times {
puts Benchmark.measure {
1000000.times {
Object.new
}
}
}
|
