Squashed 'thirdparty/systemjs/' content from commit 5ed69b6

git-subtree-dir: thirdparty/systemjs
git-subtree-split: 5ed69b6344e8fc1cd43bf758350b2236f57e1499

1 files changed, 67 insertions, 0 deletions

diff --git a/bench/normalize-perf.js b/bench/normalize-perf.js
new file mode 100644
index 000000000..6749382a2
--- /dev/null
+++ b/bench/normalize-perf.js
@@ -0,0 +1,67 @@
+var systemjs = require('../index.js');
+
+var num = 5;
+
+var startTime, endTime;
+
+startTime = Date.now();
+require('./config-example/config.js');
+endTime = Date.now();
+console.log('Configured in ' + (endTime - startTime) + 'ms');
+
+require('./config-example/pkg-configs.js');
+
+var normalizeData = require('./config-example/normalize-data.js');
+
+// decanonicalize the parentNames (we're not measuring decanonicalize)
+var normalizationCnt = 0;
+normalizeData.forEach(function(item) {
+  normalizationCnt += item[1].length;
+  item[0] = System.decanonicalize(item[0]);
+});
+
+// simulated System.register normalization test
+// timed normalize of 'x', ['./dep'] cases
+function test() {
+  return Promise.all(normalizeData.map(function(item) {
+    var parentName = item[0];
+    var deps = item[1];
+    return Promise.all(deps.map(function(dep) {
+      return System.normalize(dep, parentName);
+    }));
+  }));
+}
+
+return Promise.resolve()
+.then(function() {
+  starTime = Date.now();
+  return test()
+  .then(function() {
+    endTime = Date.now();
+    console.log(normalizationCnt + ' first run normalizations in ' + (endTime - startTime) + 'ms');
+    console.log((endTime - startTime) / normalizationCnt + 'ms per normalization');
+  });
+})
+.then(function() {
+  startTime = Date.now();
+  var testPromise = Promise.resolve();
+  for (var i = 0; i < num; i++)
+    testPromise = testPromise.then(test);
+  return testPromise
+  .then(function() {
+    endTime = Date.now();
+
+    var time = (endTime - startTime) / num;
+
+    console.log(normalizationCnt + ' subsequent normalizations in ' + time + 'ms');
+    console.log(time / normalizationCnt + 'ms per normalization');
+
+    /* System.perfSummary(function(evt) {
+      return evt.name.match(/^normalize\:/);
+    }); */
+  })
+  .catch(function(e) {
+    console.error(e.stack || e);
+  });
+
+});
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