node_modules/jsdom/node_modules/htmlparser/pulls/node-htmlparser/profile.js

   1 //node --prof --prof_auto profile.js
   2 //deps/v8/tools/mac-tick-processor v8.log
   3 var sys = require("sys");
   4 var fs = require("fs");
   5 var http = require("http");
   6 var htmlparser = require("./node-htmlparser");
   7 var libxml = require('./libxmljs');
   8
   9 var testNHP = true; //Should node-htmlparser be exercised?
  10 var testLXJS = true; //Should libxmljs be exercised?
  11 var testIterations = 100; //Number of test loops to run
  12
  13 var testHost = "nodejs.org"; //Host to fetch test HTML from
  14 var testPort = 80; //Port on host to fetch test HTML from
  15 var testPath = "/api.html"; //Path on host to fetch HTML from
  16
  17 function getMillisecs () {
  18         return((new Date()).getTime());
  19 }
  20
  21 function timeExecutions (loops, func) {
  22         var start = getMillisecs();
  23
  24         while (loops--)
  25                 func();
  26
  27         return(getMillisecs() - start);
  28 }
  29
  30 var html = "";
  31 http.createClient(testPort, testHost)
  32         .request("GET", testPath, { host: testHost })
  33         .addListener("response", function (response) {
  34                 if (response.statusCode == "200") {
  35                         response.setEncoding("utf8");
  36                         response.addListener("data", function (chunk) {
  37                                 html += chunk;
  38                         }).addListener("end", function() {
  39                                 var timeNodeHtmlParser = !testNHP ? 0 : timeExecutions(testIterations, function () {
  40                                         var handler = new htmlparser.DefaultHandler(function(err, dom) {
  41                                                 if (err)
  42                                                         sys.debug("Error: " + err);
  43                                         });
  44                                         var parser = new htmlparser.Parser(handler);
  45                                         parser.parseComplete(html);
  46                                 })
  47
  48                                 var timeLibXmlJs = !testLXJS ? 0 : timeExecutions(testIterations, function () {
  49                                         var dom = libxml.parseHtmlString(html);
  50                                 })
  51
  52                                 if (testNHP)
  53                                         sys.debug("NodeHtmlParser: "  + timeNodeHtmlParser);
  54                                 if (testLXJS)
  55                                         sys.debug("LibXmlJs: "  + timeLibXmlJs);
  56                                 if (testNHP && testLXJS)
  57                                         sys.debug("Difference: " + ((timeNodeHtmlParser - timeLibXmlJs) / timeLibXmlJs) * 100);
  58                         });
  59                 }
  60                 else
  61                         sys.debug("Error: got response status " + response.statusCode);
  62         })
  63         .end();