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require 'rubygems'
require 'bundler/setup'
require 'v8'
require 'benchmark'
require 'optparse'
OPTIONS = {
:times => 5,
:mode => :object,
:objects => 500
}
parser = OptionParser.new do |opts|
opts.on("-t", "--times [T]", Integer, "run benchmark N times") do |t|
OPTIONS[:times] = t
end
opts.on("-m", "--mode [MODE]", [:object, :function, :eval], "select the type of object access to stress test") do |mode|
mode = mode.to_sym
raise "unsupported mode #{mode}" unless [:object,:function,:eval].include?(mode)
OPTIONS[:mode] = mode
end
opts.on("-o", "--objects [N]", Integer, "create N objects for each iteration") do |n|
OPTIONS[:objects] = n
end
opts
end
parser.parse! ARGV
MODE = OPTIONS[:mode]
TIMES = OPTIONS[:times]
OBJECTS = OPTIONS[:objects]
puts "using #{OPTIONS[:mode]}"
if MODE==:object
def get(i)
@cxt["test"]["objects"][i]
end
elsif MODE==:function
def get(i)
@cxt["test"].getObject(i)
end
elsif MODE==:eval
def get(i)
@cxt.eval "test.getObject(#{i})"
end
end
js= <<JS
function createTest()
{
var test = {};
test.objects = [];
test.seed = 49734321;
test.summ;
test.random = function()
{
// Robert Jenkins' 32 bit integer hash function.
test.seed = ((test.seed + 0x7ed55d16) + (test.seed << 12)) & 0xffffffff;
test.seed = ((test.seed ^ 0xc761c23c) ^ (test.seed >>> 19)) & 0xffffffff;
test.seed = ((test.seed + 0x165667b1) + (test.seed << 5)) & 0xffffffff;
test.seed = ((test.seed + 0xd3a2646c) ^ (test.seed << 9)) & 0xffffffff;
test.seed = ((test.seed + 0xfd7046c5) + (test.seed << 3)) & 0xffffffff;
test.seed = ((test.seed ^ 0xb55a4f09) ^ (test.seed >>> 16)) & 0xffffffff;
return (test.seed & 0xfffffff) / 0x10000000;
};
test.init = function()
{
test.objects = [];
for(var i=0; i<#{OBJECTS}; i++)
{
var hash = {};
for(var j=0; j<10; j++)
{
var isString = test.random();
var key = "str" + test.random();
var value;
if(isString < 0.5)
value = "str" + test.random();
else
value = test.random();
hash[key] = value;
}
test.objects[i] = hash;
}
return test.objects.length;
}
test.findSum = function()
{
test.summ = 0;
var length = test.objects.length;
for(var i=0; i<length; i++)
{
var hash = test.objects[i];
for (var k in hash)
{
if (hash.hasOwnProperty(k) && (typeof(hash[k]) == "number"))
{
test.summ += hash[k];
}
}
}
return test.summ;
};
test.finalCheck = function()
{
var summ = 0;
var length = test.objects.length;
for(var i=0; i<length; i++)
{
var hash = test.objects[i];
for (var k in hash)
{
if (hash.hasOwnProperty(k) && (typeof(hash[k]) == "number"))
{
summ += hash[k];
}
}
}
return summ ;
};
test.getObject = function(index)
{
if(!test.objects[index]) return {};
return test.objects[index];
}
test.setObject = function(index, object)
{
test.objects[index] = object;
}
return test;
}
JS
def profile
Benchmark.realtime do
yield
end
end
def get_res result
result.to_f
end
puts "init js context..."
cxt = V8::Context.new
@cxt=cxt
cxt.eval(js)
cxt.eval('var test = createTest()')
puts "run init test"
result =profile do
TIMES.times do
cxt['test'].init()
end
end
puts "init time: #{get_res(result) / TIMES} sec."
sum1=sum2=0
puts "run findSum test"
result =profile do
TIMES.times do
sum1= cxt['test'].findSum
end
end
puts "findSum time: #{get_res(result) / TIMES} sec."
puts "run Objects inversion in ruby test"
result =profile do
TIMES.times do |j|
puts j
for i in 0..(OBJECTS-1) do
obj = get(i)
obj.each do |key, value|
if value.instance_of? Float
obj[key] = value * (-1)
end
end
end
end
end
puts "Objects time: #{get_res(result) / TIMES} sec."
puts "run finalCheck test"
result =profile do
TIMES.times do
sum2= cxt['test'].findSum
end
end
puts "final check time: #{get_res(result) / TIMES} sec."
puts "#{sum1==sum2*(TIMES%2==0?1:-1) ? 'TEST PASS': 'TEST FAIL'}: Sum before inversions: #{sum1} / Sum after inversions: #{sum2}"
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