Current File : //proc/self/root/usr/src/node-v0.10.4/benchmark/net/tcp-raw-c2s.js
// In this benchmark, we connect a client to the server, and write
// as many bytes as we can in the specified time (default = 10s)
var common = require('../common.js');
// if there are --dur=N and --len=N args, then
// run the function with those settings.
// if not, then queue up a bunch of child processes.
var bench = common.createBenchmark(main, {
len: [102400, 1024 * 1024 * 16],
type: ['utf', 'asc', 'buf'],
dur: [5]
});
var TCP = process.binding('tcp_wrap').TCP;
var PORT = common.PORT;
var dur;
var len;
var type;
function main(conf) {
dur = +conf.dur;
len = +conf.len;
type = conf.type;
server();
}
function fail(syscall) {
var e = new Error(syscall + ' ' + errno);
e.errno = e.code = errno;
e.syscall = syscall;
throw e;
}
function server() {
var serverHandle = new TCP();
var r = serverHandle.bind('127.0.0.1', PORT);
if (r)
fail('bind');
var r = serverHandle.listen(511);
if (r)
fail('listen');
serverHandle.onconnection = function(clientHandle) {
if (!clientHandle)
fail('connect');
// the meat of the benchmark is right here:
bench.start();
var bytes = 0;
setTimeout(function() {
// report in Gb/sec
bench.end((bytes * 8) / (1024 * 1024 * 1024));
}, dur * 1000);
clientHandle.onread = function(buffer, offset, length) {
// we're not expecting to ever get an EOF from the client.
// just lots of data forever.
if (!buffer)
fail('read');
// don't slice the buffer. the point of this is to isolate, not
// simulate real traffic.
// var chunk = buffer.slice(offset, offset + length);
bytes += length;
};
clientHandle.readStart();
};
client();
}
function client() {
var chunk;
switch (type) {
case 'buf':
chunk = new Buffer(len);
chunk.fill('x');
break;
case 'utf':
chunk = new Array(len / 2 + 1).join('ΓΌ');
break;
case 'asc':
chunk = new Array(len + 1).join('x');
break;
default:
throw new Error('invalid type: ' + type);
break;
}
var clientHandle = new TCP();
var connectReq = clientHandle.connect('127.0.0.1', PORT);
if (!connectReq)
fail('connect');
clientHandle.readStart();
connectReq.oncomplete = function() {
while (clientHandle.writeQueueSize === 0)
write();
};
function write() {
var writeReq
switch (type) {
case 'buf':
writeReq = clientHandle.writeBuffer(chunk);
break;
case 'utf':
writeReq = clientHandle.writeUtf8String(chunk);
break;
case 'asc':
writeReq = clientHandle.writeAsciiString(chunk);
break;
}
if (!writeReq)
fail('write');
writeReq.oncomplete = afterWrite;
}
function afterWrite(status, handle, req) {
if (status)
fail('write');
while (clientHandle.writeQueueSize === 0)
write();
}
}
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