node/benchmark/http/chunked.js at master · anchnk/node · GitHub

41 lines (36 loc) · 976 Bytes

// When calling .end(buffer) right away, this triggers a "hot path"

// optimization in http.js, to avoid an extra write call.

// However, the overhead of copying a large buffer is higher than

// the overhead of an extra write() call, so the hot path was not

// always as hot as it could be.

// Verify that our assumptions are valid.

'use strict';

var common = require('../common.js');

var bench = common.createBenchmark(main, {

n: [1, 4, 8, 16],

len: [1, 64, 256],

c: [100]

});

function main(conf) {

const http = require('http');

var chunk = Buffer.alloc(conf.len, '8');

var server = http.createServer(function(req, res) {

function send(left) {

if (left === 0) return res.end();

res.write(chunk);

setTimeout(function() {

send(left - 1);

}, 0);

}

send(conf.n);

});

server.listen(common.PORT, function() {

bench.http({

connections: conf.c

}, function() {

server.close();

});

}

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