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bench: add http_simple_auto benchmark
Starts a server and benchmarks it with ab.
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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`. | ||
// | ||
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var path = require("path"); | ||
var http = require("http"); | ||
var spawn = require("child_process").spawn; | ||
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var port = parseInt(process.env.PORT || 8000); | ||
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var fixed = "" | ||
for (var i = 0; i < 20*1024; i++) { | ||
fixed += "C"; | ||
} | ||
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var stored = {}; | ||
var storedBuffer = {}; | ||
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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; | ||
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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]; | ||
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} 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]; | ||
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} else if (command == "quit") { | ||
res.connection.server.close(); | ||
body = "quitting"; | ||
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} else if (command == "fixed") { | ||
body = fixed; | ||
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} else if (command == "echo") { | ||
res.writeHead(200, { "Content-Type": "text/plain", | ||
"Transfer-Encoding": "chunked" }); | ||
req.pipe(res); | ||
return; | ||
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} else { | ||
status = 404; | ||
body = "not found\n"; | ||
} | ||
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// 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; | ||
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for (var i = 0; i < len; i += step) { | ||
res.write(body.slice(i, i + step)); | ||
} | ||
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res.end(); | ||
} else { | ||
var content_length = body.length.toString(); | ||
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res.writeHead(status, { "Content-Type": "text/plain", | ||
"Content-Length": content_length }); | ||
res.end(body); | ||
} | ||
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}); | ||
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server.listen(port, function () { | ||
var url = 'http://127.0.0.1:' + port + '/'; | ||
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var n = process.argv.length - 1; | ||
process.argv[n] = url + process.argv[n]; | ||
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var cp = spawn('ab', process.argv.slice(2)); | ||
cp.stdout.pipe(process.stdout); | ||
cp.stderr.pipe(process.stderr); | ||
cp.on('exit', function() { | ||
server.close(); | ||
}); | ||
}); |