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639 B

var common = require('../common.js');
var bench = common.createBenchmark(main, {
len: [64, 256, 1024, 4096, 32768],
dur: [5]
});
var spawn = require('child_process').spawn;
function main(conf) {
bench.start();
var dur = +conf.dur;
var len = +conf.len;
var msg = '"' + Array(len).join('.') + '"';
var options = { 'stdio': ['ignore', 'ipc', 'ignore'] };
var child = spawn('yes', [msg], options);
var bytes = 0;
child.on('message', function(msg) {
bytes += msg.length;
});
setTimeout(function() {
child.kill();
var gbits = (bytes * 8) / (1024 * 1024 * 1024);
bench.end(gbits);
}, dur * 1000);
}