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bench: add http_simple_auto benchmark
Starts a server and benchmarks it with ab.
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bnoordhuis committed Mar 6, 2012
1 parent 443071d commit 544e5ee
Showing 1 changed file with 109 additions and 0 deletions.
109 changes: 109 additions & 0 deletions benchmark/http_simple_auto.js
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//
// Usage:
// node benchmark/http_simple_auto.js <args> <target>
//
// Where:
// <args> Arguments to pass to `ab`.
// <target> Target to benchmark, e.g. `bytes/1024` or `buffer/8192`.
//

var path = require("path");
var http = require("http");
var spawn = require("child_process").spawn;

var port = parseInt(process.env.PORT || 8000);

var fixed = ""
for (var i = 0; i < 20*1024; i++) {
fixed += "C";
}

var stored = {};
var storedBuffer = {};

var server = http.createServer(function (req, res) {
var commands = req.url.split("/");
var command = commands[1];
var body = "";
var arg = commands[2];
var n_chunks = parseInt(commands[3], 10);
var status = 200;

if (command == "bytes") {
var n = parseInt(arg, 10)
if (n <= 0)
throw "bytes called with n <= 0"
if (stored[n] === undefined) {
stored[n] = "";
for (var i = 0; i < n; i++) {
stored[n] += "C"
}
}
body = stored[n];

} else if (command == "buffer") {
var n = parseInt(arg, 10)
if (n <= 0) throw new Error("bytes called with n <= 0");
if (storedBuffer[n] === undefined) {
storedBuffer[n] = new Buffer(n);
for (var i = 0; i < n; i++) {
storedBuffer[n][i] = "C".charCodeAt(0);
}
}
body = storedBuffer[n];

} else if (command == "quit") {
res.connection.server.close();
body = "quitting";

} else if (command == "fixed") {
body = fixed;

} else if (command == "echo") {
res.writeHead(200, { "Content-Type": "text/plain",
"Transfer-Encoding": "chunked" });
req.pipe(res);
return;

} else {
status = 404;
body = "not found\n";
}

// example: http://localhost:port/bytes/512/4
// sends a 512 byte body in 4 chunks of 128 bytes
if (n_chunks > 0) {
res.writeHead(status, { "Content-Type": "text/plain",
"Transfer-Encoding": "chunked" });
// send body in chunks
var len = body.length;
var step = ~~(len / n_chunks) || len;

for (var i = 0; i < len; i += step) {
res.write(body.slice(i, i + step));
}

res.end();
} else {
var content_length = body.length.toString();

res.writeHead(status, { "Content-Type": "text/plain",
"Content-Length": content_length });
res.end(body);
}

});

server.listen(port, function () {
var url = 'http://127.0.0.1:' + port + '/';

var n = process.argv.length - 1;
process.argv[n] = url + process.argv[n];

var cp = spawn('ab', process.argv.slice(2));
cp.stdout.pipe(process.stdout);
cp.stderr.pipe(process.stderr);
cp.on('exit', function() {
server.close();
});
});

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