{
	"id": "147278",
	"key": "TIMOB-18855",
	"fields": {
		"issuetype": {
			"id": "1",
			"description": "A problem which impairs or prevents the functions of the product.",
			"name": "Bug",
			"subtask": false
		},
		"project": {
			"id": "10153",
			"key": "TIMOB",
			"name": "Titanium SDK/CLI",
			"projectCategory": {
				"id": "10100",
				"description": "Titanium and related SDKs used in application development",
				"name": "Client"
			}
		},
		"fixVersions": [
			{
				"id": "16723",
				"description": "Windows Platform Support, ListView updates, Vector overlays in maps",
				"name": "Release 4.1.0",
				"archived": false,
				"released": true,
				"releaseDate": "2015-07-08"
			}
		],
		"resolution": {
			"id": "1",
			"description": "A fix for this issue is checked into the tree and tested.",
			"name": "Fixed"
		},
		"resolutiondate": "2015-05-04T14:19:19.000+0000",
		"created": "2015-04-25T17:29:14.000+0000",
		"priority": {
			"name": "Critical",
			"id": "1"
		},
		"labels": [],
		"versions": [],
		"issuelinks": [],
		"assignee": {
			"name": "kiguchi",
			"key": "kota",
			"displayName": "Kota Iguchi",
			"active": false,
			"timeZone": "America/Los_Angeles"
		},
		"updated": "2015-07-13T21:14:04.000+0000",
		"status": {
			"description": "The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.",
			"name": "Closed",
			"id": "6",
			"statusCategory": {
				"id": 3,
				"key": "done",
				"colorName": "green",
				"name": "Done"
			}
		},
		"components": [
			{
				"id": "12642",
				"name": "Windows",
				"description": "Windows authoring support"
			}
		],
		"description": "The following code demonstrates that when you create a {{new Date()}} object in a {{setTimeout}} or {{setInterval}} method the time is off by a factor 1000.\r\n\r\nIf you run https://github.com/appcelerator-developer-relations/Mobile-App-Performance/ you will see that this also occurs when you have a expensive computation that takes several seconds and you log the time before and after.\r\n\r\n{code}\r\nvar run = require('run');\r\n\r\nvar win = Ti.UI.createWindow({\r\n\tbackgroundColor: 'white',\r\n\tlayout: 'vertical'\r\n});\r\n\r\nvar btnTimeout = Ti.UI.createButton({\r\n\ttop: 20,\r\n\theight: 40,\r\n\tcolor: '#FFF',\r\n\tbackgroundColor: '#000',\r\n\ttitle: 'setTimeout'\r\n});\r\n\r\nbtnTimeout.addEventListener('click', function () {\r\n\taddLabel();\r\n\r\n\tsetTimeout(function () {\r\n\t\taddLabel();\r\n\r\n\t\tsetTimeout(function () {\r\n\t\t\taddLabel();\r\n\r\n\t\t\twin.add(btnInterval);\r\n\r\n\t\t}, 5000);\r\n\r\n\t}, 0);\r\n});\r\n\r\nwin.add(btnTimeout);\r\n\r\nvar btnInterval = Ti.UI.createButton({\r\n\ttop: 20,\r\n\theight: 40,\r\n\tcolor: '#FFF',\r\n\tbackgroundColor: '#000',\r\n\ttitle: 'setInterval'\r\n});\r\n\r\nbtnInterval.addEventListener('click', function () {\r\n\tvar interval;\r\n\tvar intervals = 0;\r\n\r\n\taddLabel();\r\n\r\n\tinterval = setInterval(function () {\r\n\r\n\t\tintervals++;\r\n\r\n\t\taddLabel();\r\n\r\n\t\tif (intervals === 2) {\r\n\t\t\tclearInterval(interval);\r\n\t\t}\r\n\r\n\t}, 5000);\r\n});\r\n\r\nfunction addLabel() {\r\n\tvar d = new Date();\r\n\r\n\twin.add(Ti.UI.createLabel({\r\n\t\ttop: 20,\r\n\t\twidth: Ti.UI.FILL,\r\n\t\theight: 40,\r\n\t\ttext: pad(d.getHours()) + ':' + pad(d.getMinutes()) + ':' + pad(d.getSeconds()) + ':' + pad(d.getMilliseconds()),\r\n\t\tcolor: '#000'\r\n\t}));\r\n}\r\n\r\nfunction pad(int) {\r\n\tvar str = int.toString();\r\n\r\n\tif (str.length === 1) {\r\n\t\tstr = '0' + str;\r\n\t}\r\n\r\n\treturn str;\r\n}\r\n\r\nwin.open();\r\n{code}\r\n\r\nI did the tests on the Emulator, but looking at the results [~kota] achieved with https://github.com/appcelerator-developer-relations/Mobile-App-Performance/ the same is true for device.",
		"attachment": [
			{
				"id": "55084",
				"filename": "iOS Simulator Screen Shot 25 Apr 2015 19.25.26.png",
				"author": {
					"name": "fokkezb",
					"key": "fokke",
					"displayName": "Fokke Zandbergen",
					"active": true,
					"timeZone": "Europe/Amsterdam"
				},
				"created": "2015-04-25T17:31:17.000+0000",
				"size": 41812,
				"mimeType": "image/png"
			},
			{
				"id": "55085",
				"filename": "Screen Shot 2015-04-25 at 19.24.04.png",
				"author": {
					"name": "fokkezb",
					"key": "fokke",
					"displayName": "Fokke Zandbergen",
					"active": true,
					"timeZone": "Europe/Amsterdam"
				},
				"created": "2015-04-25T17:31:17.000+0000",
				"size": 101032,
				"mimeType": "image/png"
			}
		],
		"flagged": false,
		"summary": "Windows: Time between creating Date() objects runs a factor 1000 slower then reality",
		"creator": {
			"name": "fokkezb",
			"key": "fokke",
			"displayName": "Fokke Zandbergen",
			"active": true,
			"timeZone": "Europe/Amsterdam"
		},
		"subtasks": [],
		"reporter": {
			"name": "fokkezb",
			"key": "fokke",
			"displayName": "Fokke Zandbergen",
			"active": true,
			"timeZone": "Europe/Amsterdam"
		},
		"environment": "Windows SDK 4.1.0.v20150423183637\r\nTitanium CLI 3.6.0-dev / 4.1.0-dev",
		"closedSprints": [
			{
				"id": 394,
				"state": "closed",
				"name": "2015 Sprint 09 Windows",
				"startDate": "2015-04-26T05:00:09.221Z",
				"endDate": "2015-05-10T03:59:00.000Z",
				"completeDate": "2015-05-11T13:20:23.987Z",
				"originBoardId": 144
			}
		],
		"comment": {
			"comments": [
				{
					"id": "350751",
					"author": {
						"name": "fokkezb",
						"key": "fokke",
						"displayName": "Fokke Zandbergen",
						"active": true,
						"timeZone": "Europe/Amsterdam"
					},
					"body": "Attached the results on iOS and Windows Emulator",
					"updateAuthor": {
						"name": "fokkezb",
						"key": "fokke",
						"displayName": "Fokke Zandbergen",
						"active": true,
						"timeZone": "Europe/Amsterdam"
					},
					"created": "2015-04-25T17:31:17.000+0000",
					"updated": "2015-04-25T17:32:40.000+0000"
				},
				{
					"id": "350834",
					"author": {
						"name": "kiguchi",
						"key": "kota",
						"displayName": "Kota Iguchi",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"body": "Confirmed that this issue is Windows-specific which originally because JavaScriptCore evaluates wrong {{Date}}. Following test cases represents the issue, which is failing on Windows, which is passed on OS X.\r\n\r\n{code}\r\nTEST_F(JSContextTests, TIMOB_18855) {\r\n  JSContext js_context = js_context_group.CreateContext();\r\n  js_context.JSEvaluateScript(\"var start=new Date().getTime();\");\r\n  std::this_thread::sleep_for(std::chrono::milliseconds(1000));\r\n  JSValue js_value = js_context.JSEvaluateScript(\"new Date().getTime() - start;\");\r\n  XCTAssertFalse(static_cast<std::int32_t>(js_value) == 1);\r\n  XCTAssertTrue(static_cast<std::int32_t>(js_value) >  999);\r\n  // assuming JS evaluation is done within 100 msec...\r\n  XCTAssertTrue(static_cast<std::int32_t>(js_value) < 1100);\r\n}\r\n{code}",
					"updateAuthor": {
						"name": "kiguchi",
						"key": "kota",
						"displayName": "Kota Iguchi",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"created": "2015-04-27T05:14:11.000+0000",
					"updated": "2015-04-27T05:14:11.000+0000"
				},
				{
					"id": "350839",
					"author": {
						"name": "kiguchi",
						"key": "kota",
						"displayName": "Kota Iguchi",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"body": "I suspect it is somewhat related to \"date time cache\" because first \"new Date()\" call returns valid value. Note that Ti Windows is based on nearly 2 years old JavaScriptCore and there are numerous changes since then, including date time calculation and cache. https://github.com/WebKit/webkit/commits/master/Source/JavaScriptCore/runtime/JSDateMath.cpp",
					"updateAuthor": {
						"name": "kiguchi",
						"key": "kota",
						"displayName": "Kota Iguchi",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"created": "2015-04-27T07:28:44.000+0000",
					"updated": "2015-04-27T07:28:44.000+0000"
				},
				{
					"id": "351127",
					"author": {
						"name": "kiguchi",
						"key": "kota",
						"displayName": "Kota Iguchi",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"body": "I was able to fix this. It was a small bug originally introduced by Igalia: https://github.com/infosia/webkit-wp8/commit/e4d0d6034ba12c8b2ae9563836b078ace9d59fac The bad news is that I have been failing to build JavaScriptCore for ARM locally, maybe it is environmental issue. Do we have CI build server for JavaScriptCore?",
					"updateAuthor": {
						"name": "kiguchi",
						"key": "kota",
						"displayName": "Kota Iguchi",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"created": "2015-04-29T11:31:33.000+0000",
					"updated": "2015-04-29T11:31:33.000+0000"
				},
				{
					"id": "351224",
					"author": {
						"name": "kiguchi",
						"key": "kota",
						"displayName": "Kota Iguchi",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"body": "https://github.com/appcelerator/HAL/pull/45",
					"updateAuthor": {
						"name": "kiguchi",
						"key": "kota",
						"displayName": "Kota Iguchi",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"created": "2015-04-30T03:37:46.000+0000",
					"updated": "2015-04-30T03:37:46.000+0000"
				},
				{
					"id": "351247",
					"author": {
						"name": "fokkezb",
						"key": "fokke",
						"displayName": "Fokke Zandbergen",
						"active": true,
						"timeZone": "Europe/Amsterdam"
					},
					"body": "[~kota] is there a build available already that I can run the benchmarks on?",
					"updateAuthor": {
						"name": "fokkezb",
						"key": "fokke",
						"displayName": "Fokke Zandbergen",
						"active": true,
						"timeZone": "Europe/Amsterdam"
					},
					"created": "2015-04-30T08:20:40.000+0000",
					"updated": "2015-04-30T08:20:40.000+0000"
				},
				{
					"id": "351249",
					"author": {
						"name": "kiguchi",
						"key": "kota",
						"displayName": "Kota Iguchi",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"body": "[~fokkezb] Yes, download latest JavaScriptCore [JavaScriptCore-Windows-1430359270.zip|http://timobile.appcelerator.com.s3.amazonaws.com/jscore/JavaScriptCore-Windows-1430359270.zip], and extract it to your JavaScriptCore_HOME. It's safe to overwrite existing *.lib there. Then clean and rebuild your benchmark app.",
					"updateAuthor": {
						"name": "kiguchi",
						"key": "kota",
						"displayName": "Kota Iguchi",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"created": "2015-04-30T08:45:25.000+0000",
					"updated": "2015-04-30T08:45:25.000+0000"
				},
				{
					"id": "357591",
					"author": {
						"name": "eharris",
						"key": "eharris",
						"displayName": "Ewan Harris",
						"active": true,
						"timeZone": "Europe/Dublin"
					},
					"body": "Verified using:\r\n\r\nWindows 8.1\r\nAppc CLI (NPM): 4.1.0\r\nAppc CLI (Registry): 4.1.0\r\nTi SDK: 4.1.0.GA\r\n\r\nUsing the provided sample code the results provided are expected and match the pattern of the iOS results\r\n\r\nClosing ticket",
					"updateAuthor": {
						"name": "eharris",
						"key": "eharris",
						"displayName": "Ewan Harris",
						"active": true,
						"timeZone": "Europe/Dublin"
					},
					"created": "2015-07-13T21:13:59.000+0000",
					"updated": "2015-07-13T21:13:59.000+0000"
				}
			],
			"maxResults": 8,
			"total": 8,
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		}
	}
}