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  • tinymce not working with chrome when i dynamically setcontent

    - by oo
    I have a site that i put: <body onload="ajaxLoad()" > I have a javascript function that then shove data from my db into the text editor by using the setContent method in javascript of the textarea. seems fine in firefox and IE but in chrome sometimes nothing shows up. no error, just blank editor in the body section: <textarea id="elm1" name="elm1" rows="40" cols="60" style="width: 100%"> </textarea> in the head section: function ajaxLoad() { var ed = tinyMCE.get('elm1'); ed.setProgressState(1); // Show progress window.setTimeout(function() { ed.setProgressState(0); // Hide progress ed.setContent('<p style="text-align: center;"><strong><br /><span style="font-size: small;">General Manager&#39;s Corner</span></strong></p><p style="text-align: center;">August&nbsp;2009</p><p>It&rsquo;s been 15<sup>th</sup> and so have a Steak Night (Saturday, 15<sup>th</sup>) and a shore Dinner planned (Saturday, 22<sup>nd</sup>) this month. urday, September 5<sup>th</sup>. e a can&rsquo;t missed evening, shas extended it one additional week. The last clinic will be the week of August 11<sup>th</sup>. </p><p>&nbsp;Alt (Tuesday through Thursday) </p><p>&nbsp;I wouClub.</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p><p>&nbsp;<strong></strong></p>'); }, 1); } i am not sure if its some of the formatting that chrome is reject but it seems like if tinymce can parse it in one browser it can do it in any browser so i am confused. any suggestions?

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  • javascript problem on tab control

    - by mahfuz
    my tab control have four itmes. Each tab item are individual usercontrol and they have javascript method.*But always tab item1 index=0 works well*,rest of item javascript don't work.But individually they work well ,problem arise when i put them in tab control.*when i click rest of tab items javascript function Tab item1 index=0 ascx* page always load . server side event C# code works well for all tab items.....How to solve this problem .....What's the problem is? i use devespress tool ..... <table> <tr> <td> <dxtc:ASPxPageControl Width="500px" ID="ASPxPageControl1" runat="server" ActiveTabIndex="0" EnableCallbackCompression="True" EnableHierarchyRecreation="True" AutoPostBack="True"> <TabPages> <dxtc:TabPage Text="Charge Company"> <ContentCollection> <dxw:ContentControl ID="ContentControl1" runat="server"> <uc1:UCConfig_Charge_Company_Wise ID="UCConfig_Charge_Company_Wise" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> <dxtc:TabPage Text="Charge Depository Company"> <ContentCollection> <dxw:ContentControl ID="ContentControl3" runat="server"> <uc2:UCConfig_Charge_Depository_Company_Wise ID="UCConfig_Charge_Depository_Company_Wise" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> <dxtc:TabPage Text="Investor Charge "> <ContentCollection> <dxw:ContentControl ID="ContentControl5" runat="server"> <uc4:UCConfig_Investor_Account_Wise_Charge ID="UCConfig_Investor_Account_Wise_Charge" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> <dxtc:TabPage Text="Charge Operation Mode "> <ContentCollection> <dxw:ContentControl ID="ContentControl4" runat="server"> <uc3:UCconfig_charge_operation_mode ID="UCconfig_charge_operation_mode" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> </TabPages> </dxtc:ASPxPageControl> </td> </tr> </table> my first tab control item works well.but rest of them create problem.i need to call javascript all of them but calling javascript from others create problem ,they show me bellow error Microsoft JScript runtime error: 'this.GetStateInput().value' is null or not an object

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  • jquery - establishing truths when loading inline javascript via AJAX

    - by yaya3
    I have thrown together a quick prototype to try and establish a few very basic truths regarding what inline JavaScript can do when it is loaded with AJAX: index.html <html> <head> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> </head> <body> <script type="text/javascript"> $('p').css('color','white'); alert($('p').css('color')); // DISPLAYS FIRST but is "undefined" $(document).ready(function(){ $('#ajax-loaded-content-wrapper').load('loaded-by-ajax.html', function(){ $('p').css('color','grey'); alert($('p').css('color')); // DISPLAYS LAST (as expected) }); $('p').css('color','purple'); alert($('p').css('color')); // DISPLAYS SECOND }); </script> <p>Content not loaded by ajax</p> <div id="ajax-loaded-content-wrapper"> </div> </body> </html> loaded-by-ajax.html <p>Some content loaded by ajax</p> <script type="text/javascript"> $('p').css('color','yellow'); alert($('p').css('color')); // DISPLAYS THIRD $(document).ready(function(){ $('p').css('color','pink'); alert($('p').css('color')); // DISPLAYS FOURTH }); </script> <p>Some content loaded by ajax</p> <script type="text/javascript"> $(document).ready(function(){ $('p').css('color','blue'); alert($('p').css('color')); // DISPLAYS FIFTH }); $('p').css('color','green'); alert($('p').css('color')); // DISPLAYS SIX </script> <p>Some content loaded by ajax</p> Notes: a) All of the above (except the first) successfully change the colour of all the paragraphs (in firefox 3.6.3). b) I've used alert instead of console.log as console is undefined when called in the 'loaded' HTML. Truths(?): $(document).ready() does not treat the 'loaded' HTML as a new document, or reread the entire DOM tree including the loaded HTML JavaScript that is contained inside 'loaded' HTML can effect the style of existing DOM nodes One can successfully use the jQuery library inside 'loaded' HTML to effect the style of existing DOM nodes One can not use the firebug inside 'loaded' HTML can effect the existing DOM (proven by Note a) Am I correct in deriving these 'truths' from my tests (test validity)? If not, how would you test for these?

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  • How do I implement google maps yelp.com style?

    - by Craig
    I have multiple locations (20+ per page) that need to be mapped on a single map. I would like to click on a link for the location that is not dynamically generated (for SEO purposes) that would open the info window for the respective marker on the map. Behavior should mimic http://maptheburg.com/ - but this map has the sidebar links dynamically generated. Yelp.com is the only site I have seen so far that manages to implement the Google Maps API with unobtrusive JavaScript.

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  • jquery - loading inline javascript via AJAX

    - by yaya3
    I have thrown together a quick prototype to try and establish a few very basic truths regarding what inline JavaScript can do when it is loaded with AJAX: index.html <html> <head> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> </head> <body> <script type="text/javascript"> $('p').css('color','white'); alert($('p').css('color')); // DISPLAYS FIRST but is "undefined" $(document).ready(function(){ $('#ajax-loaded-content-wrapper').load('loaded-by-ajax.html', function(){ $('p').css('color','grey'); alert($('p').css('color')); // DISPLAYS LAST (as expected) }); $('p').css('color','purple'); alert($('p').css('color')); // DISPLAYS SECOND }); </script> <p>Content not loaded by ajax</p> <div id="ajax-loaded-content-wrapper"> </div> </body> </html> loaded-by-ajax.html <p>Some content loaded by ajax</p> <script type="text/javascript"> $('p').css('color','yellow'); alert($('p').css('color')); // DISPLAYS THIRD $(document).ready(function(){ $('p').css('color','pink'); alert($('p').css('color')); // DISPLAYS FOURTH }); </script> <p>Some content loaded by ajax</p> <script type="text/javascript"> $(document).ready(function(){ $('p').css('color','blue'); alert($('p').css('color')); // DISPLAYS FIFTH }); $('p').css('color','green'); alert($('p').css('color')); // DISPLAYS SIX </script> <p>Some content loaded by ajax</p> Notes: a) All of the above (except the first) successfully change the colour of all the paragraphs (in firefox 3.6.3). b) I've used alert instead of console.log as console is undefined when called in the 'loaded' HTML. Truths(?): $(document).ready() does not treat the 'loaded' HTML as a new document, or reread the entire DOM tree including the loaded HTML, it is pointless inside AJAX loaded content JavaScript that is contained inside 'loaded' HTML can effect the style of existing DOM nodes One can successfully use the jQuery library inside 'loaded' HTML to effect the style of existing DOM nodes One can not use the firebug inside 'loaded' HTML can effect the existing DOM (proven by Note a) Am I correct in deriving these 'truths' from my tests (test validity)? If not, how would you test for these?

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  • Prototype JS swallows errors in dom:loaded, and ajax callbacks?

    - by WishCow
    I can't figure out why prototype suppressess the error messages in the dom:loaded event, and in AJAX handlers. Given the following piece of HTML: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Conforming XHTML 1.1 Template</title> <script type="text/javascript" src="prototype.js"></script> <script type="text/javascript"> document.observe('dom:loaded', function() { console.log('domready'); console.log(idontexist); }); </script> </head> <body> </body> </html> The domready event fires, I see the log in the console, but there is no indication of any errors whatsoever. If you move the console.log(idontexist); line out of the handler, you get the idontexist is not defined error in the console. I find it a little weird, that in other event handlers, like 'click', you get the error message, it seems that it's only the dom:loaded that has this problem. The same goes for AJAX handlers: new Ajax.Request('/', { method: 'get', onComplete: function(r) { console.log('xhr complete'); alert(youwontseeme); } }); You won't see any errors. This is with prototype.js 1.6.1, and I can't find any indication of this behavior in the docs, nor a way to enable error reporting in these handlers. I have tried stepping through the code with FireBug's debugger, and it seems to jump to a function on line 53 named K, when it encounters the missing variable in the dom:loaded handler: K: function(x) { return x } But how? Why? When? I can't see any try/catch block there, how does the program flow end up there? I know that I can make the errors visible by packing my dom:ready handler(s) in try/catch blocks, but that's not a very comfortable option. Same goes for registering a global onException handler for the AJAX calls. Why does it even suppress the errors? Did someone encounter this before?

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  • Javascript HTML and Script injection issue in IE

    - by MartinHN
    Hi I have a javascript variable containing escaped HTML. There can be script tags inside the HTML, like this: var valueToInsert = "%3Cscript%20type%3D%22text/javascript%22%3Ealert%28%27test%27%29%3B%3C/script%3E%0A%3Cscript%20type%3D%22text/javascript%22%20src%3D%22http%3A//devserver/testinclude.js%22%3E%3C/script%3E%0A%3Cimg%20src%3D%22http%3A//www.footballpictures.net/data/media/131/manchester_united_logo.jpg%22%20/%3E" I want to append this to the DOM, and get all the javascript fired as expected. Right now I'm using this approach: var div = document.createElement("div"); div.innerHTML = unescape(valueToInsert); document.body.appendChild(div); In IE, at the time i set div.innerHTML - all script tags are removed. If I use jQuery to and do this: $(document.body).append(valueToInsert) It all works fine. Bad thing is, that I cannot use jQuery as this code will be added to sites I'm not in control of using some "already-implemented" script includes. Does someone have a trick? If jQuery can do it, it must be possible? I had another issue in Opera. I changed the injection script to be this: (still doesn't work in IE) var div = document.createElement("div"); div.innerHTML = unescape(valueToInsert); var a = new Array(); for (var i = 0; i < div.childNodes.length; i++) a.push(div.childNodes[i]); for (var i = 0; i < a.length; i++) { if (a[i].nodeName == "SCRIPT" && a[i].getAttribute("src") != null && a[i].getAttribute("src") != "" && typeof (a[i].getAttribute("src")) != "undefined") { var scriptTag = document.createElement("script"); scriptTag.src = a[i].getAttribute("src"); scriptTag.type = "text/javascript"; document.body.appendChild(scriptTag); } else if (a[i].nodeName == "SCRIPT") { eval(a[i].innerHTML); } else { document.body.appendChild(a[i]); } }

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  • javascript problem on ASPx Page Control

    - by mahfuz
    my ASPx Page Control have four itmes. Each tab item are individual usercontrol and they have javascript method.*But always tab item1 index=0 works well*,rest of item javascript don't work.But individually they work well ,problem arise when i put them in ASPx Page Control.*when i click rest of tab items javascript function Tab item1 index=0 ascx* page always load . server side event C# code works well for all tab items.....How to solve this problem .....What's the problem is? i use devespress tool ..... <table> <tr> <td> <dxtc:ASPxPageControl Width="500px" ID="ASPxPageControl1" runat="server" ActiveTabIndex="0" EnableCallbackCompression="True" EnableHierarchyRecreation="True" AutoPostBack="True"> <TabPages> <dxtc:TabPage Text="Charge Company"> <ContentCollection> <dxw:ContentControl ID="ContentControl1" runat="server"> <uc1:UCConfig_Charge_Company_Wise ID="UCConfig_Charge_Company_Wise" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> <dxtc:TabPage Text="Charge Depository Company"> <ContentCollection> <dxw:ContentControl ID="ContentControl3" runat="server"> <uc2:UCConfig_Charge_Depository_Company_Wise ID="UCConfig_Charge_Depository_Company_Wise" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> <dxtc:TabPage Text="Investor Charge "> <ContentCollection> <dxw:ContentControl ID="ContentControl5" runat="server"> <uc4:UCConfig_Investor_Account_Wise_Charge ID="UCConfig_Investor_Account_Wise_Charge" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> <dxtc:TabPage Text="Charge Operation Mode "> <ContentCollection> <dxw:ContentControl ID="ContentControl4" runat="server"> <uc3:UCconfig_charge_operation_mode ID="UCconfig_charge_operation_mode" runat="server" /> </dxw:ContentControl> </ContentCollection> </dxtc:TabPage> </TabPages> </dxtc:ASPxPageControl> </td> </tr> </table> my first ASPx Page Control item works well.but rest of them create problem.i need to call javascript all of them but calling javascript from others create problem ,they show me bellow error Microsoft JScript runtime error: 'this.GetStateInput().value' is null or not an object

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  • return multiple values?

    - by user295189
    I am trying to return two values in javascript is that possible? var newCodes = function(){ var dCodes = fg.codecsCodes.rs; // Linked ICDs var dCodes2 = fg.codecsCodes2.rs; //Linked CPTs return dCodes, dCodes2; }; Thanks

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  • Best practices managing JavaScript on a single-page app

    - by seanmonstar
    With a single page app, where I change the hash and load and change only the content of the page, I'm trying to decide on how to manage the JavaScript that each "page" might need. I've already got a History module monitoring the location hash which could look like domain.com/#/company/about, and a Page class that will use XHR to get the content and insert it into the content area. function onHashChange(hash) { var skipCache = false; if(hash in noCacheList) { skipCache = true; } new Page(hash, skipCache).insert(); } // Page.js var _pageCache = {}; function Page(url, skipCache) { if(!skipCache && (url in _pageCache)) { return _pageCache[url]; } this.url = url; this.load(); } The cache should let pages that have already been loaded skip the XHR. I also am storing the content into a documentFragment, and then pulling the current content out of the document when I insert the new Page, so I the browser will only have to build the DOM for the fragment once. Skipping the cache could be desired if the page has time sensitive data. Here's what I need help deciding on: It's very likely that any of the pages that get loaded will have some of their own JavaScript to control the page. Like if the page will use Tabs, needs a slide show, has some sort of animation, has an ajax form, or what-have-you. What exactly is the best way to go around loading that JavaScript into the page? Include the script tags in the documentFragment I get back from the XHR? What if I need to skip the cache, and re-download the fragment. I feel the exact same JavaScript being called a second time might cause conflicts, like redeclaring the same variables. Would the better way be to attach the scripts to the head when grabbing the new Page? That would require the original page know all the assets that every other page might need. And besides knowing the best way to include everything, won't I need to worry about memory management, and possible leaks of loading so many different JavaScript bits into a single page instance?

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  • jQuery Drawing Plugin

    - by Ph.E
    Camarades, You'd know me identify good libraries (preferably in jQuery) to work with "Canvas" and drawings in javascript / html. I want to make my page more interesting, especially in some registries (registry of cars) and would like to draw a car and be able to go changing the number of wheels for example. Many thanks for any help. Success

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  • apply style to range of text with javascript in uiwebview

    - by drawnonward
    I am displaying some simple styled text as html in a UIWebView on iPhone. It is basically a series of paragraphs with the occasional strong or emphasized phrase. At runtime I need to apply styles to ranges of text. There are a few similar scenarios, one of which is highlighting search results. If the user has searched for "something" I would like to change the background color behind occurrences of the word, then later restore the original background. Is it possible to apply styles to ranges of text using javascript? A key part of this is also being able to unset the styles. There seem to be two likely paths to follow. One would be modifying some html in Objective-C and passing it through javascript as the new innerHTML of some container. The other would be to use javascript to directly manipulate DOM nodes. I could manipulate html, but that sounds tedious in Objective-C so I would rather manipulate the DOM if that is a reasonable approach. I am not that familiar with javascript and DOM so I do not know if it is a reasonable approach. I wrote some routines to translate between text ranges and node ranges with offsets. So if I start with text range 100-200 and that starts in one paragraph and ends in a third, I can get the text nodes and the offsets within the nodes that represent the given text range. I just need a way to split a text node at an offset in the text. Currently I just apply styles to the paragraphs containing the text range. A few notes: straight javascript please, no external frameworks like jquery. the changes never need to be written to disk. the changes should be undoable or at least removable. the styles to apply already exist in a css file. it needs to work in iPhone 3.0 and forward. all the source files are shipped with the app. please be verbose. Thanks for any suggestions.

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  • Returning currently displayed index of an array Javascript...

    - by Jeff Kindred
    I have a simple array with x number of items. I am displaying them individually via a link click... I want to update a number that say 1 of 10. when the next one is displayed i want it to display 2 of 10 etc... I have looked all around and my brain is fried right now... I know its simple I just cant get it out. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>Page Title</title> <link rel="stylesheet" href="style.css" type="text/css" media="screen" charset="utf-8"/> <script type="text/javascript"> var quotations = new Array() quotations[0]= "1" quotations[1]= "2" quotations[2]= "3" quotations[3]= "4" quotations[4]= "5" quotations[5]= "6" quotations[6]= "7" numQuotes = quotations.length; curQuote = 1; function move( xflip ) { curQuote = curQuote + xflip; if (curQuote > numQuotes) { curQuote = 1 ; } if (curQuote == 0) { curQuote = numQuotes ; } document.getElementById('quotation').innerHTML=quotations[curQuote - 1]; } var curPage = //this is where the current index should go </script> </head> <body> <div id="quotation"> <script type="text/javascript">document.write(quotations[0]);</script> </div> <div> <p><a href="javascript();" onclick="move(-1)">GO back</a> <script type="text/javascript">document.write(curPage + " of " + numQuotes)</script> <a href="javascript();" onclick="move(1)">GO FORTH</a></p> </div> </body> </html>

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  • Event to listen to attribute changes

    - by Luis
    I dont think this is possible but maybe someone knows a way to achieve this. I want to attach an event to an html element to listen to attribute change. So say for instance that I want something to happen when a visibility of a div changes. The reason is that I have no control over the javascript that is switching the visibility, hence the need for an event. Thanks

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  • Calling back a functions value

    - by Jason Kelly
    I need your help, I cannot, for the life of me, figure this out. I've had my head wrapped around it only to no avail. Ideally, i'd like to setup two functions. 1 function: select_date() to interact with the user to select a date from the jQuery Date picker. If the dialog is closed then return as null. Then a second function: test() to check wether or not a date was picked/selected.' Here's my delema, when the function test() is executed, an alert box pops up and says "undefined" which means, I never get to select a date and it always being "undefined" I dont see what I am doing wrong here and everything seems logical to me. <!DOCTYPE html> <html> <head> <link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.21/themes/base/jquery-ui.css" rel="stylesheet" type="text/css"/> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.js"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.21/jquery-ui.js"></script> <script type="text/javascript"> function select_date() { var sdate $('#dd').dialog({ autoOpen: true, modal: true, overlay: { opacity: 0.5, background: 'black' }, title: "title", height: 265, width: 235, draggable: false, resizable: false }); $('#d1').datepicker({ onSelect: function () { $("#dd").dialog("close"); } }); return sdate } function test() { var x = select_date() alert(x) } </script> <style type="text/css"> #d1 {font-size:64%;} </style> </head> <body> <div id="dd"> <div id="d1"> </div> </div> <a href="javascript:test()">test</a> </body> </html>

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  • Utilizing back and forward browser buttons for web apps

    - by at
    How do I use the back and forward browser buttons to navigate my javascript/jQuery web application? I know I can do window.location.href = 'this_url#placeholder' and then perform the appropriate action. But when I do that, the browser scrolls to the element with that placeholder id (or to the top if there wasn't one). How do I get the browser to not scroll anywhere? I've seen this on other sites like facebook, what's the appropriate mechanism for this?

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  • C# performance analysis- how to count CPU cycles?

    - by Lirik
    Is this a valid way to do performance analysis? I want to get nanosecond accuracy and determine the performance of typecasting: class PerformanceTest { static double last = 0.0; static List<object> numericGenericData = new List<object>(); static List<double> numericTypedData = new List<double>(); static void Main(string[] args) { double totalWithCasting = 0.0; double totalWithoutCasting = 0.0; for (double d = 0.0; d < 1000000.0; ++d) { numericGenericData.Add(d); numericTypedData.Add(d); } Stopwatch stopwatch = new Stopwatch(); for (int i = 0; i < 10; ++i) { stopwatch.Start(); testWithTypecasting(); stopwatch.Stop(); totalWithCasting += stopwatch.ElapsedTicks; stopwatch.Start(); testWithoutTypeCasting(); stopwatch.Stop(); totalWithoutCasting += stopwatch.ElapsedTicks; } Console.WriteLine("Avg with typecasting = {0}", (totalWithCasting/10)); Console.WriteLine("Avg without typecasting = {0}", (totalWithoutCasting/10)); Console.ReadKey(); } static void testWithTypecasting() { foreach (object o in numericGenericData) { last = ((double)o*(double)o)/200; } } static void testWithoutTypeCasting() { foreach (double d in numericTypedData) { last = (d * d)/200; } } } The output is: Avg with typecasting = 468872.3 Avg without typecasting = 501157.9 I'm a little suspicious... it looks like there is nearly no impact on the performance. Is casting really that cheap?

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  • Poor Ruby on Rails performance when using nested :include

    - by Jeremiah Peschka
    I have three models that look something like this: class Bucket < ActiveRecord::Base has_many :entries end class Entry < ActiveRecord::Base belongs_to :submission belongs_to :bucket end class Submission < ActiveRecord::Base has_many :entries belongs_to :user end class User < ActiveRecord::Base has_many :submissions end When I retrieve a collection of entries doing something like: @entries = Entry.find(:all, :conditions => ['entries.bucket_id = ?', @bucket], :include => :submission) The performance is pretty quick although I get a large number of extra queries because the view uses the Submission.user object. However, if I add the user to the :include statement, the performance becomes terrible and it takes over a minute to return a total of 50 entries and submissions spread across 5 users. When I run the associated SQL commands, they complete in well under a second. @entries = Entry.find(:all, :conditions => ['entries.bucket_id = ?', @bucket], :include => {:submission => :user}) Why would this second command have such terrible performance compared to the first?

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  • best way to set up a VM for development (regarding performance)

    - by raticulin
    I am trying to set up a clean vm I will use in many of my devs. Hopefully I will use it many times and for a long time, so I want to get it right and set it up so performance is as good as possible. I have searched for a list of things to do, but strangely found only older posts, and none here. My requirements are: My host is Vista 32b, and guest is Windows2008 64b, using Vmware Workstation. The VM should also be able to run on a Vmware ESX I cannot move to other products (VirtualBox etc), but info about performance of each one is welcomed for reference. Anyway I guess most advices would apply to other OSs and other VM products. I need network connectivity to my LAN Guest will run many java processes, a DB and perform lots of file I/O What I have found so far is: HOWTO: Squeeze Every Last Drop of Performance Out of Your Virtual PCs: it's and old post, and about Virtual PC, but I guess most things still apply (and also apply to vmware). I guess it makes a difference to disable all unnecessary services, but the ones mentioned in 1 seem like too few, I specifically always disable Windows Search. Any other service I should disable?

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  • Rails performance tests "rake test:benchmark" and "rake test:profile" give me errors

    - by go minimal
    I'm trying to run a blank default performance test with Ruby 1.9 and Rails 2.3.5 and I just can't get it to work! What am I missing here??? rails testapp cd testapp script/generate scaffold User name:string rake db:migrate rake test:benchmark - /usr/local/bin/ruby19 -I"lib:test" "/usr/local/lib/ruby19/gems/1.9.1/gems/rake-0.8.7/lib/rake/rake_test_loader.rb" "test/performance/browsing_test.rb" -- --benchmark Loaded suite /usr/local/lib/ruby19/gems/1.9.1/gems/rake-0.8.7/lib/rake/rake_test_loader Started /usr/local/lib/ruby19/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:105:in `rescue in const_missing': uninitialized constant BrowsingTest::STARTED (NameError) from /usr/local/lib/ruby19/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:94:in `const_missing' from /usr/local/lib/ruby19/gems/1.9.1/gems/activesupport-2.3.5/lib/active_support/testing/performance.rb:38:in `run' from /usr/local/lib/ruby19/1.9.1/minitest/unit.rb:415:in `block (2 levels) in run_test_suites' from /usr/local/lib/ruby19/1.9.1/minitest/unit.rb:409:in `each' from /usr/local/lib/ruby19/1.9.1/minitest/unit.rb:409:in `block in run_test_suites' from /usr/local/lib/ruby19/1.9.1/minitest/unit.rb:408:in `each' from /usr/local/lib/ruby19/1.9.1/minitest/unit.rb:408:in `run_test_suites' from /usr/local/lib/ruby19/1.9.1/minitest/unit.rb:388:in `run' from /usr/local/lib/ruby19/1.9.1/minitest/unit.rb:329:in `block in autorun' rake aborted! Command failed with status (1): [/usr/local/bin/ruby19 -I"lib:test" "/usr/l...]

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  • Java Performance measurement

    - by portoalet
    Hi, I am doing some Java performance comparison between my classes, and wondering if there is some sort of Java Performance Framework to make writing performance measurement code easier? I.e, what I am doing now is trying to measure what effect does it have having a method as "synchronized" as in PseudoRandomUsingSynch.nextInt() compared to using an AtomicInteger as my "synchronizer". So I am trying to measure how long it takes to generate random integers using 3 threads accessing a synchronized method looping for say 10000 times. I am sure there is a much better way doing this. Can you please enlighten me? :) public static void main( String [] args ) throws InterruptedException, ExecutionException { PseudoRandomUsingSynch rand1 = new PseudoRandomUsingSynch((int)System.currentTimeMillis()); int n = 3; ExecutorService execService = Executors.newFixedThreadPool(n); long timeBefore = System.currentTimeMillis(); for(int idx=0; idx<100000; ++idx) { Future<Integer> future = execService.submit(rand1); Future<Integer> future1 = execService.submit(rand1); Future<Integer> future2 = execService.submit(rand1); int random1 = future.get(); int random2 = future1.get(); int random3 = future2.get(); } long timeAfter = System.currentTimeMillis(); long elapsed = timeAfter - timeBefore; out.println("elapsed:" + elapsed); } the class public class PseudoRandomUsingSynch implements Callable<Integer> { private int seed; public PseudoRandomUsingSynch(int s) { seed = s; } public synchronized int nextInt(int n) { byte [] s = DonsUtil.intToByteArray(seed); SecureRandom secureRandom = new SecureRandom(s); return ( secureRandom.nextInt() % n ); } @Override public Integer call() throws Exception { return nextInt((int)System.currentTimeMillis()); } } Regards

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  • Java performance issue

    - by Colby77
    Hi, I've got a question related to java performance and method execution. In my app there are a lot of place where I have to validate some parameter, so I've written a Validator class and put all the validation methods into it. Here is an example: public class NumberValidator { public static short shortValidator(String s) throws ValidationException{ try{ short sh = Short.parseShort(s); if(sh < 1){ throw new ValidationException(); } return sh; }catch (Exception e) { throw new ValidationException("The parameter is wrong!"); } } ... But I'm thinking about that. Is this OK? It's OO and modularized, but - considering performance - is it a good idea? What if I had awful lot of invocation at the same time? The snippet above is short and fast, but there are some methods that take more time. What happens when there are a lot of calling to a static method or an instance method in the same class and the method is not synchronized? All the calling methods have to fall in line and the JVM executes them sequentially? Is it a good idea to have some class that are identical to the above-mentioned and randomly call their identical methods? I think it is not, because "Don't repeat yourself " and "Duplication is Evil" etc. But what about performance? Thanks is advance.

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