Profile analysis using V8 sampling profiler.

Closes jquery#1157 Closes jquerygh-1219
jasonLaster · Jul 2, 2015 · 0c795f0 · 0c795f0
1 parent 469accd
commit 0c795f0
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diff --git a/package.json b/package.json
@@ -41,6 +41,7 @@
         "regenerate": "~0.6.2",
         "unicode-7.0.0": "~0.1.5",
         "json-diff": "~0.3.1",
+        "node-tick-processor": "~0.0.2",
         "coveralls": "~2.11.2"
     },
     "keywords": [
@@ -68,6 +69,7 @@
 
         "test": "npm run tests && npm run static-analysis && npm run dynamic-analysis",
 
+        "profile": "node --prof test/profile.js && mv isolate*.log v8.log && node-tick-processor",
         "benchmark": "node test/benchmarks.js",
         "benchmark-quick": "node test/benchmarks.js quick",
 

diff --git a/test/profile.js b/test/profile.js
@@ -0,0 +1,58 @@
+/*
+  Copyright (c) jQuery Foundation, Inc. and Contributors, All Rights Reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+var fs = require('fs'),
+    esprima = require('../esprima'),
+    N, fixture;
+
+// Loops for parsing, useful for stress-testing/profiling.
+N = 25;
+
+fixture = [
+    'Underscore 1.5.2',
+    'Backbone 1.1.0',
+    'MooTools 1.4.5',
+    'jQuery 1.9.1',
+    'YUI 3.12.0',
+    'jQuery.Mobile 1.4.2',
+    'Angular 1.2.5'
+];
+
+console.log('Parsing libraries for sampling profiling analysis...');
+
+fixture.forEach(function (name) {
+    var filename, source, expected, syntax, tokens, i;
+    filename = name.toLowerCase().replace(/\.js/g, 'js').replace(/\s/g, '-');
+    source = fs.readFileSync('test/3rdparty/' + filename + '.js', 'utf-8');
+    console.log(' ', name);
+    try {
+        for (i = 0; i < N; ++i) {
+            syntax = esprima.parse(source, { range: true, loc: true, raw: true });
+        }
+    } catch (e) {
+        console.log('FATAL', e.toString());
+        process.exit(1);
+    }
+});
+