From 98e2821b38a775737e42a2479a6bc65107210859 Mon Sep 17 00:00:00 2001 From: Elliot Kroo Date: Thu, 11 Mar 2010 15:21:30 -0800 Subject: reorganizing the first level of folders (trunk/branch folders are not the git way :) --- infrastructure/ace/www/profiler.js | 117 +++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 infrastructure/ace/www/profiler.js (limited to 'infrastructure/ace/www/profiler.js') diff --git a/infrastructure/ace/www/profiler.js b/infrastructure/ace/www/profiler.js new file mode 100644 index 0000000..24b68a2 --- /dev/null +++ b/infrastructure/ace/www/profiler.js @@ -0,0 +1,117 @@ +/** + * Copyright 2009 Google Inc. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS-IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +// author: David Greenspan +// a basic profiler +// e.g. var p = PROFILER("somename", true); +// p.mark("abc"); abc(); +// p.mark("xyz"); var x = xyz(); +// p.literal(x, "someNumber"); +// p.end(); + +// Note that IE/Win only has 16 ms time resolution for each run. + +var _profilersByName = {}; +function PROFILER(name, enabled) { + if (!_profilersByName['$'+name]) { + _profilersByName['$'+name] = _makeProfiler(name, enabled); + } + var p = _profilersByName['$'+name]; + p.start(); + return p; +} + +function resetProfiler(name) { + delete _profilersByName['$'+name]; +} + +function _makeProfiler(name, enabled) { + enabled = (enabled !== false); + + var _profileTime; + var _profileResults; + var _profileTotal; + var _profileHistory = []; + var running = false; + + function profileStart(name) { + _profileResults = []; + _profileTotal = 0; + if (name) _profileResults.push(name); + running = true; + _profileTime = (new Date()).getTime(); + } + + function profileMark(name) { + var stopTime = (new Date()).getTime(); + var dt = stopTime - _profileTime; + _profileResults.push(dt); + _profileTotal += dt; + if (name) _profileResults.push(name); + _profileTime = (new Date()).getTime(); + } + + function profileLiteral(value, name) { + _profileResults.push(value); + if (name) _profileResults.push("%="+name); + } + + function profileEnd(name) { + if (running == false) return; + var stopTime = (new Date()).getTime(); + var dt = stopTime - _profileTime; + _profileResults.push(dt); + _profileTotal += dt; + if (name) _profileResults.push(name); + _profileResults.unshift(_profileTotal,"="); + _profileHistory.push(_profileResults); + if (dumpProfileDataTimeout) + top.clearTimeout(dumpProfileDataTimeout); + dumpProfileDataTimeout = top.setTimeout(dumpProfileData, 800); + running = false; + } + + var dumpProfileDataTimeout = null; + + function dumpProfileData() { + var data = _profileHistory[0].slice(); + forEach(_profileHistory.slice(1), function (h) { + forEach(h, function (x, i) { + if ((typeof x) == "number") data[i] += x; + }); + }); + data = map(data, function (x) { + if ((typeof x) == "number") return String(x/_profileHistory.length).substring(0,4); + return x; + }); + data.push("("+_profileHistory.length+")"); + top.pad.dmesg(data.join(" ").replace(/ %/g,'')); + dumpProfileDataTimeout = null; + } + + function noop() {} + function cancel() { + running = false; + } + + if (enabled) { + return {start:profileStart, mark:profileMark, literal:profileLiteral, end:profileEnd, + cancel:cancel}; + } + else { + return {start:noop, mark:noop, literal:noop, end:noop, cancel:noop}; + } +} -- cgit v1.2.3