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• Java Champion Stephen Chin on New Features and Functionality in JavaFX

  - by janice.heiss(at)oracle.com

  In an Oracle Technology Network interview, Java Champion Stephen Chin, Chief Agile Methodologist for GXS, and one of the most prolific and innovative JavaFX developers, provides an update on the rapidly developing changes in JavaFX.Chin expressed enthusiasm about recent JavaFX developments:"There is a lot to be excited about -- JavaFX has a new API face. All the JavaFX 2.0 APIs will be exposed via Java classes that will make it much easier to integrate Java server and client code. This also opens up some huge possibilities for JVM language integration with JavaFX." Chin also spoke about developments in Visage, the new language project created to fill the gap left by JavaFX Script:"It's a domain-specific language for writing user interfaces, which addresses the needs of UI developers. Visage takes over where JavaFX Script left off, providing a statically typed, declarative language with lots of features to make UI development a pleasure.""My favorite language features from Visage are the object literal syntax for quickly building scene graphs and the bind keyword for connecting your UI to the backend model. However, the language is built for UI development from the top down, including subtle details like null-safe dereferencing for exception-less code."Read the entire article.

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• SQL SERVER – Difference Between DATETIME and DATETIME2 – WITH GETDATE

  - by pinaldave

  Earlier I wrote blog post SQL SERVER – Difference Between GETDATE and SYSDATETIME which inspired me to write SQL SERVER – Difference Between DATETIME and DATETIME2. Now earlier two blog post inspired me to write this blog post (and 4 emails and 3 reads from readers). I previously populated DATETIME and DATETIME2 field with SYSDATETIME, which gave me very different behavior as SYSDATETIME was rounded up/down for the DATETIME datatype. I just ran the same experiment but instead of populating SYSDATETIME in this script I will be using GETDATE function. DECLARE @Intveral INT SET @Intveral = 10000 CREATE TABLE #TimeTable (FirstDate DATETIME, LastDate DATETIME2) WHILE (@Intveral > 0) BEGIN INSERT #TimeTable (FirstDate, LastDate) VALUES (GETDATE(), GETDATE()) SET @Intveral = @Intveral - 1 END GO SELECT COUNT(DISTINCT FirstDate) D_FirstDate, COUNT(DISTINCT LastDate) D_LastDate FROM #TimeTable GO SELECT DISTINCT a.FirstDate, b.LastDate FROM #TimeTable a INNER JOIN #TimeTable b ON a.FirstDate = b.LastDate GO SELECT * FROM #TimeTable GO DROP TABLE #TimeTable GO Let us run above script and observe the results. You will find that the values of GETDATE which is populated in both the columns FirstDate and LastDate are very much same. This is because GETDATE is of datatype DATETIME and the precision of the GETDATE is smaller than DATETIME2 there is no rounding happening. In other word, this experiment is pointless. I have included this as I got 4 emails and 3 twitter questions on this subject. If your datatype of variable is smaller than column datatype there is no manipulation of data, if data type of variable is larger than column datatype the data is rounded. Reference: Pinal Dave (http://www.SQLAuthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL DateTime, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Flash in browsers does not play sound accurately using Pulse network audio

  - by Dave M G

  I use PulseAudio to send sound over the LAN to an audio server. When playing any Flash media in Firefox or Chrome, the sound flutters, as if the volume were going up and down every second. The problem does not exhibit with any other software, and I think it's specific to how Flash interacts with my sound set up. How do I get Flash to play nice with the PulseAudio network sound server? Update I have discovered that I can stop the sound fluttering if I follow these steps: Start a Flash video Run pulseaudio --kill on the server Wait about 7 seconds After this, the PulseAudio server automatically respawns, and the sound in the Flash video is perfect. The problem now, though, is that I have to do this every time I start a Flash video. This is obviously not desireable. So, the question is, how do I make whatever it is that makes the sound work when I go through these steps stick so that I don't have to do them? Also, I've uploaded some PulseAudio log output to Pastebin, taken while attempting to play a Flash video, if that helps. I've tried to get logging details from Flash, but despite installing and enabling Flash for debugging, it has not generated any ouput at all. Details I have uploaded an example video of the problem onto Youtube. In the video you can see the opening of a Ted Talk video, and the sound flutters as it plays. The video also stutters while playing back. Here are my sound device output settings:

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• Cleaner HTML Markup with ASP.NET 4 Web Forms - Client IDs (VS 2010 and .NET 4.0 Series)

  - by ScottGu

  This is the sixteenth in a series of blog posts I’m doing on the upcoming VS 2010 and .NET 4 release. Today’s post is the first of a few blog posts I’ll be doing that talk about some of the important changes we’ve made to make Web Forms in ASP.NET 4 generate clean, standards-compliant, CSS-friendly markup.  Today I’ll cover the work we are doing to provide better control over the “ID” attributes rendered by server controls to the client. [In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu] Clean, Standards-Based, CSS-Friendly Markup One of the common complaints developers have often had with ASP.NET Web Forms is that when using server controls they don’t have the ability to easily generate clean, CSS-friendly output and markup.  Some of the specific complaints with previous ASP.NET releases include: Auto-generated ID attributes within HTML make it hard to write JavaScript and style with CSS Use of tables instead of semantic markup for certain controls (in particular the asp:menu control) make styling ugly Some controls render inline style properties even if no style property on the control has been set ViewState can often be bigger than ideal ASP.NET 4 provides better support for building standards-compliant pages out of the box.  The built-in <asp:> server controls with ASP.NET 4 now generate cleaner markup and support CSS styling – and help address all of the above issues.  Markup Compatibility When Upgrading Existing ASP.NET Web Forms Applications A common question people often ask when hearing about the cleaner markup coming with ASP.NET 4 is “Great - but what about my existing applications?  Will these changes/improvements break things when I upgrade?” To help ensure that we don’t break assumptions around markup and styling with existing ASP.NET Web Forms applications, we’ve enabled a configuration flag – controlRenderingCompatbilityVersion – within web.config that let’s you decide if you want to use the new cleaner markup approach that is the default with new ASP.NET 4 applications, or for compatibility reasons render the same markup that previous versions of ASP.NET used:   When the controlRenderingCompatbilityVersion flag is set to “3.5” your application and server controls will by default render output using the same markup generation used with VS 2008 and .NET 3.5.  When the controlRenderingCompatbilityVersion flag is set to “4.0” your application and server controls will strictly adhere to the XHTML 1.1 specification, have cleaner client IDs, render with semantic correctness in mind, and have extraneous inline styles removed. This flag defaults to 4.0 for all new ASP.NET Web Forms applications built using ASP.NET 4. Any previous application that is upgraded using VS 2010 will have the controlRenderingCompatbilityVersion flag automatically set to 3.5 by the upgrade wizard to ensure backwards compatibility.  You can then optionally change it (either at the application level, or scope it within the web.config file to be on a per page or directory level) if you move your pages to use CSS and take advantage of the new markup rendering. Today’s Cleaner Markup Topic: Client IDs The ability to have clean, predictable, ID attributes on rendered HTML elements is something developers have long asked for with Web Forms (ID values like “ctl00_ContentPlaceholder1_ListView1_ctrl0_Label1” are not very popular).  Having control over the ID values rendered helps make it much easier to write client-side JavaScript against the output, makes it easier to style elements using CSS, and on large pages can help reduce the overall size of the markup generated. New ClientIDMode Property on Controls ASP.NET 4 supports a new ClientIDMode property on the Control base class.  The ClientIDMode property indicates how controls should generate client ID values when they render.  The ClientIDMode property supports four possible values: AutoID—Renders the output as in .NET 3.5 (auto-generated IDs which will still render prefixes like ctrl00 for compatibility) Predictable (Default)— Trims any “ctl00” ID string and if a list/container control concatenates child ids (example: id=”ParentControl_ChildControl”) Static—Hands over full ID naming control to the developer – whatever they set as the ID of the control is what is rendered (example: id=”JustMyId”) Inherit—Tells the control to defer to the naming behavior mode of the parent container control The ClientIDMode property can be set directly on individual controls (or within container controls – in which case the controls within them will by default inherit the setting): Or it can be specified at a page or usercontrol level (using the <%@ Page %> or <%@ Control %> directives) – in which case controls within the pages/usercontrols inherit the setting (and can optionally override it): Or it can be set within the web.config file of an application – in which case pages within the application inherit the setting (and can optionally override it): This gives you the flexibility to customize/override the naming behavior however you want. Example: Using the ClientIDMode property to control the IDs of Non-List Controls Let’s take a look at how we can use the new ClientIDMode property to control the rendering of “ID” elements within a page.  To help illustrate this we can create a simple page called “SingleControlExample.aspx” that is based on a master-page called “Site.Master”, and which has a single <asp:label> control with an ID of “Message” that is contained with an <asp:content> container control called “MainContent”: Within our code-behind we’ll then add some simple code like below to dynamically populate the Label’s Text property at runtime:   If we were running this application using ASP.NET 3.5 (or had our ASP.NET 4 application configured to run using 3.5 rendering or ClientIDMode=AutoID), then the generated markup sent down to the client would look like below: This ID is unique (which is good) – but rather ugly because of the “ct100” prefix (which is bad). Markup Rendering when using ASP.NET 4 and the ClientIDMode is set to “Predictable” With ASP.NET 4, server controls by default now render their ID’s using ClientIDMode=”Predictable”.  This helps ensure that ID values are still unique and don’t conflict on a page, but at the same time it makes the IDs less verbose and more predictable.  This means that the generated markup of our <asp:label> control above will by default now look like below with ASP.NET 4: Notice that the “ct100” prefix is gone. Because the “Message” control is embedded within a “MainContent” container control, by default it’s ID will be prefixed “MainContent_Message” to avoid potential collisions with other controls elsewhere within the page. Markup Rendering when using ASP.NET 4 and the ClientIDMode is set to “Static” Sometimes you don’t want your ID values to be nested hierarchically, though, and instead just want the ID rendered to be whatever value you set it as.  To enable this you can now use ClientIDMode=static, in which case the ID rendered will be exactly the same as what you set it on the server-side on your control.  This will cause the below markup to be rendered with ASP.NET 4: This option now gives you the ability to completely control the client ID values sent down by controls. Example: Using the ClientIDMode property to control the IDs of Data-Bound List Controls Data-bound list/grid controls have historically been the hardest to use/style when it comes to working with Web Form’s automatically generated IDs.  Let’s now take a look at a scenario where we’ll customize the ID’s rendered using a ListView control with ASP.NET 4. The code snippet below is an example of a ListView control that displays the contents of a data-bound collection — in this case, airports: We can then write code like below within our code-behind to dynamically databind a list of airports to the ListView above: At runtime this will then by default generate a <ul> list of airports like below.  Note that because the <ul> and <li> elements in the ListView’s template are not server controls, no IDs are rendered in our markup: Adding Client ID’s to Each Row Item Now, let’s say that we wanted to add client-ID’s to the output so that we can programmatically access each <li> via JavaScript.  We want these ID’s to be unique, predictable, and identifiable. A first approach would be to mark each <li> element within the template as being a server control (by giving it a runat=server attribute) and by giving each one an id of “airport”: By default ASP.NET 4 will now render clean IDs like below (no ctl001-like ids are rendered):   Using the ClientIDRowSuffix Property Our template above now generates unique ID’s for each <li> element – but if we are going to access them programmatically on the client using JavaScript we might want to instead have the ID’s contain the airport code within them to make them easier to reference.  The good news is that we can easily do this by taking advantage of the new ClientIDRowSuffix property on databound controls in ASP.NET 4 to better control the ID’s of our individual row elements. To do this, we’ll set the ClientIDRowSuffix property to “Code” on our ListView control.  This tells the ListView to use the databound “Code” property from our Airport class when generating the ID: And now instead of having row suffixes like “1”, “2”, and “3”, we’ll instead have the Airport.Code value embedded within the IDs (e.g: _CLE, _CAK, _PDX, etc): You can use this ClientIDRowSuffix approach with other databound controls like the GridView as well. It is useful anytime you want to program row elements on the client – and use clean/identified IDs to easily reference them from JavaScript code. Summary ASP.NET 4 enables you to generate much cleaner HTML markup from server controls and from within your Web Forms applications.  In today’s post I covered how you can now easily control the client ID values that are rendered by server controls.  In upcoming posts I’ll cover some of the other markup improvements that are also coming with the ASP.NET 4 release. Hope this helps, Scott

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• AJI Report #19 | Scott K Davis and his son Tommy on Gamification and Programming for Kids

  - by Jeff Julian

  We are very excited about this show. John and Jeff sat down with Scott Davis and his son Tommy to talk about Gamification and Programming for Kids. Tommy is nine years old and the Iowa Code Camp was his second time presenting. Scott and Tommy introduce a package called Scratch that was developed by MIT to teach kids about logic and interacting with programming using sprites. Tommy's favorite experience with programming right now is Lego Mindstorms because of the interaction with the Legos and the development. Most adults when they get started with development also got started with interacting more with the physical machines. The next generation is given amazing tools, but the tools tend to be sealed and the physical interaction is not there. With some of these alternative hobby platforms like Legos, Arduino, and .NET Micro Framework, kids can write some amazing application and see their code work with physical movement and interaction with devices and sensors. In the second half of this podcast, Scott talks about how companies can us Gamification to prompt employees to interact with software and processes in the organization. We see gamification throughout the consumer space and you need to do is open up the majority of the apps on our phones or tablets and there is some interaction point to give the user a reward for using the tool. Scott gets into his product Qonqr which is described as the board game Risk and Foursquare together. Scott gets into the different mindsets of gamers (Bartle Index) and how you can use these mindsets to get the most out of your team through gamification techniques. Listen to the Show Site: http://scottkdavis.com/ Twitter: @ScottKDavis LinkedIn: ScottKDavis Scratch: http://scratch.mit.edu/ Lego Mindstorms: http://mindstorms.lego.com/ Bartle Test: Wikipedia Gamification: Wikipedia

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• Supermicro IPMI SSL

  - by churnd

  I have a Supermicro X9SCA-F serverboard and I'm trying to secure Super Doctor III IPMI by using SSL. I generated my own certs (done this many times before), uploaded via the web interface, then it said it needed to restart & I clicked OK, but it never came back up. Right now it's not listening on port 80 or 443 it seems. I also power cycled the box a few times (shutting down & physically removing power for 5 mins), but that didn't seem to help either. Before I did this, it was working fine, so I'm not sure what may have happened?

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• xfx 680i motherboard failure?

  - by Ian

  At some point last night we must have had a blip in our power, as the stove clock was blinking like it would had their been... a blip in the power. When I came into my office this morning, my desktop computer was powered down and would not turn on. Cracking the case, I can see a small blue blinking light on the front right corner of the motherboard. Unplugging the power from the PSU causes the blinking to stop. Plugging in the power causes the blinking to resume. Pressing the power button does nothing. Does anyone know what this blinking blue light means? I'm mostly curious now if it's the motherboard that has gone bad, or the power supply. I don't have any other desktop parts to use to troubleshoot these components. Any ideas? My motherboard is an XFX NFORCE 680I SLI INTEL SOCKET 775 DDR2 ( Model #: MB-N680-ISH9 )

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• A Look at the GridView's New Sorting Styles in ASP.NET 4.0

  Like every Web control in the ASP.NET toolbox, the GridView includes a variety of style-related properties, including CssClass, Font, ForeColor, BackColor, Width, Height, and so on. The GridView also includes style properties that apply to certain classes of rows in the grid, such as RowStyle, AlternatingRowStyle, HeaderStyle, and PagerStyle. Each of these meta-style properties offer the standard style properties (CssClass, Font, etc.) as subproperties. In ASP.NET 4.0, Microsoft added four new style properties to the GridView control: SortedAscendingHeaderStyle, SortedAscendingCellStyle, SortedDescendingHeaderStyle, and SortedDescendingCellStyle. These four properties are meta-style properties like RowStyle and HeaderStyle, but apply to column of cells rather than a row. These properties only apply when the GridView is sorted - if the grid's data is sorted in ascending order then the SortedAscendingHeaderStyle and SortedAscendingCellStyle properties define the styles for the column the data is sorted by. The SortedDescendingHeaderStyle and SortedDescendingCellStyle properties apply to the sorted column when the results are sorted in descending order. These four new properties make it easier to customize the appearance of the column by which the data is sorted. Using these properties along with a touch of Cascading Style Sheets (CSS) it is possible to add up and down arrows to the sorted column's header to indicate whether the data is sorted in ascending or descending order. Likewise, these properties can be used to shade the sorted column or make its text bold. This article shows how to use these four new properties to style the sorted column. Read on to learn more! Read More >

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• Beware: Upgrade to ASP.NET MVC 2.0 with care if you use AntiForgeryToken

  - by James Crowley

  If you're thinking of upgrading to MVC 2.0, and you take advantage of the AntiForgeryToken support then be careful - you can easily kick out all active visitors after the upgrade until they restart their browser. Why's this?For the anti forgery validation to take place, ASP.NET MVC uses a session cookie called "__RequestVerificationToken_Lw__". This gets checked for and de-serialized on any page where there is an AntiForgeryToken() call. However, the format of this validation cookie has apparently changed between MVC 1.0 and MVC 2.0. What this means is that when you make to switch on your production server to MVC 2.0, suddenly all your visitors session cookies are invalid, resulting in calls to AntiForgeryToken() throwing exceptions (even on a standard GET request) when de-serializing it: [InvalidCastException: Unable to cast object of type 'System.Web.UI.Triplet' to type 'System.Object[]'.]   System.Web.Mvc.AntiForgeryDataSerializer.Deserialize(String serializedToken) +104[HttpAntiForgeryException (0x80004005): A required anti-forgery token was not supplied or was invalid.]   System.Web.Mvc.AntiForgeryDataSerializer.Deserialize(String serializedToken) +368   System.Web.Mvc.HtmlHelper.GetAntiForgeryTokenAndSetCookie(String salt, String domain, String path) +209   System.Web.Mvc.HtmlHelper.AntiForgeryToken(String salt, String domain, String path) +16   System.Web.Mvc.HtmlHelper.AntiForgeryToken() +10  <snip> So you've just kicked all your active users out of your site with exceptions until they think to restart their browser (to clear the session cookies). The only work around for now is to either write some code that wipes this cookie - or disable use of AntiForgeryToken() in your MVC 2.0 site until you're confident all session cookies will have expired. That in itself isn't very straightforward, given how frequently people tend to hibernate/standby their machines - the session cookie will only clear once the browser has been shut down and re-opened. Hope this helps someone out there!

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• SSO Configuration MMC Snap-in

  - by Christopher House

  This may be old news to most people but I've been away from BizTalk for about a year, so this was a welcome development for me.  The other day, I was discussing with my client the various options for storing configuration data required by our project.  I brought up SSO as it's something I've used with success on previous projects.  The client hadn't previously used SSO and was concerned about the maintainability of configuration stored in SSO.  I offered to do a quick POC to demonstrate storing/retrieving/maintaining configuration via SSO.  As I set about creating the POC, I needed to download Richard Seroter's SSO configuration tool, since that's what I've used previously for managing SSO data.  I went to google to track it down and was pleasantly surprised to discover that Microsoft has finally released an MMC snap-in for maintaining SSO applications. The download contains three components.  The first is the MMC snap-in which allows you to create/delete applications as well as name/value pairs within an application.  Next is a C# class file, SSOConfigHelper.cs, which can be used to retrieve values from an SSO application.  Finally, there's an MSBuild task that allows you to deploy SSO application data with your builds. I didn't see any information as to which versions are supported, I'm using it in a BizTalk 2009 environment and it seems to work quite nicely.  The download package is available here.

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• Agile PLM on Developing Agile PLM: Software Lifecycle Management

  - by Kerrie Foy

  Change is constant.  That saying couldn’t be truer when applied to software development.   And with all that change comes extensive product complexity.  How do you manage it all?  As software developers ourselves, we can certainly empathize with the challenge. On April 3, 2012 Stephen Van Lare, VP of PLM Product Development, hosted a webcast to share how Oracle uses Agile to develop Agile – a PLM solution for managing a PLM solution!   Stephen passionately shared his unique insight based on 10 years of using Agile PLM to manage the development process, as well as customer use cases.  He shared our time-proven view of the software’s relationship to the product record, while pointing out that PLM is not source control.  He began with the challenges of software development, which boiled down to the deduction that “despite many great tools in the software development industry, it takes a lot more than good source control, more than good bug tracking, to get to an on-time, on-budget and quality release in your marketplace.   It requires defining the right things you want to do, managing the scope, managing your schedule, and, most importantly, managing the change to all those things over the lifecycle of the process. And this is the definition of PLM.”   Stephen then defined the relationship of PLM to the software development process by detailing the two main use cases –  Product Lifecycle and Mechatronics – which can be used simultaneously and in fact are already used in most industries today.  The Product Lifecycle use case is used to manage artifacts and change throughout product development, while the Mechatronics use case involves the software, hardware and electrical design in the BOM.  In essence, PLM is just as relevant to software as the rest of the BOM when trying to maximize profits during any phase of the lifecycle. Please take the opportunity to watch Stephen Van Lare as he details how and why based on his own experience developing Agile with Agile, as well as a lively Q&A session, in the Software PLM Webcast Replay.

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• Forum software advice needed

  - by David Thompson

  Hello All ... we want to migrate our sites current forum (proprietary built) to a newer, more modern (feature rich) platform. I've been looking around at the available options and have narrowed it down to vBulletin, Vanilla or Phorum (unless you have another suggestion ?). I hope someone here can give me some feedback on their experiences either migrating to a new forum or working deeply with one. The current forum we have has approx 2.2 million threads in it and is contained in a MySQL database. Data Migration is obviously the first issue, is one of the major Forum vendors better or worse in this regard ? The software needs to be able to be clustered and cached to ensure availability and performance. We want it to be PHP based and store it's data in MySQL. The code needs to be open to allow us to highly customise the software both to strip out a lot of stuff and be able to integrate our sites features. A lot of the forums I've looked at have a lot of duplicate features to our main site, in particular member management, profiles etc. I realise we'll have to do a good bit of development in removing these and tieing it all back to the main site so we want to find a platform that makes this kind of integration as easy as possible. Finally I guess if 'future proofing' the forum (as best as possible) given the above. Which platform will allow us to customise it but also allow us to keep instep with upgrades. Which forum software has the best track record for bringing online new features in a timely manner ? etc. etc. I know it's a big question but if anyone here has any experience in some or all of the above I'd be very grateful.

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• No Preview Images in File Open Dialogs on Windows 7

  - by Rick Strahl

  I’ve been updating some file uploader code in my photoalbum today and while I was working with the uploader I noticed that the File Open dialog using Silverlight that handles the file selections didn’t allow me to ever see an image preview for image files. It sure would be nice if I could preview the images I’m about to upload before selecting them from a list. Here’s what my list looked like: This is the Medium Icon view, but regardless of the views available including Content view only icons are showing up. Silverlight uses the standard Windows File Open Dialog so it uses all the same settings that apply to Explorer when displaying content. It turns out that the Customization options in particular are the problem here. Specifically the Always show icons, never thumbnails option: I had this option checked initially, because it’s one of the defenses against runaway random Explorer views that never stay set at my preferences. Alas, while this setting affects Explorer views apparently it also affects all dialog based views in the same way. Unchecking the option above brings back full thumbnailing for all content and icon views. Here’s the same Medium Icon view after turning the option off: which obviously works a whole lot better for selection of images. The bummer of this is that it’s not controllable at the dialog level – at least not in Silverlight. Dialogs obviously have different requirements than what you see in Explorer so the global configuration is a bit extreme especially when there are no overrides on the dialog interface. Certainly for Silverlight the ability to have previews is a key feature for many applications since it will be dealing with lots of media content most likely. Hope this helps somebody out. Thanks to Tim Heuer who helped me track this down on Twitter.© Rick Strahl, West Wind Technologies, 2005-2010Posted in Silverlight  Windows  

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• Oracle VM and JRockit Virtual Edition: Oracle Introduces Java Virtualization Solution for Oracle(R)

  - by adam.hawley

  Since the beginning, we've been talking to customers about how our approach to virtualization is different and more powerful than any other company because Oracle has the "full-stack" of software (and even hardware these days!) to work with to create more comprehensive, more powerful solutions. Having the virtualization layer, two enterprise class operating systems in Solaris and Enterprise Linux, and the leading enterprise software in nearly every layer of the data center stack, allows us to not just do virtualization for virtualization's sake but rather to provide complete virtualization solutions focused on making enterprise software easier to deploy, easier to manage, and easier to support through integration up and down the stack. Today, we announced the availability of a significant demonstration of that capability by announcing a WebLogic Suite option that permits the Oracle WebLogic Server 11g to run on a Java JVM (JRockit Virtual Edition) that itself runs directly on the Oracle VM Server for x86 / x64 without needing any operating system. Why would you want that? Better performance and better consolidation density, not to mention great security due to a lower "attack surface area". Oracle also announced the Oracle Virtual Assembly Builder product. Oracle Virtual Assembly Builder provides a framework for automatically capturing the configuration of existing software components and packaging them as self-contained building blocks known as appliances. So you know that complex application you've tweaked on your physical servers (or on other virtual environments for that matter)?  Virtual Assembly Builder will allow the automated collection of all the configuration data for the various application components that make up that multi-tier application and then use the information to create and package each component as a virtual machine so that the application can be deployed in your Oracle VM virtualization environment quickly and easily and just as it was configured it in your original environment. A slick, drag-and-drop GUI also serves as a powerful, intuitive interface for viewing and editing your assembly as needed.No one else can do complete virtualization solutions the way Oracle can and I think these offerings show what's possible when you have the right resources for elegantly solving the larger problems in the data center rather than just having to make-do with tools that are only operating at one layer of the stack. For more information, read the press release including the links to more information on various Oracle websites.

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• Web application development over C++ development..

  - by learnerforever

  Hi, I am CS undergrad and CS grad. In college I used to program in C/C++/java and have pretty much stuck to the same skill set in industry with 3 years experience. I like thinking,reading,applying logic etc, designing data structures, but I have little patience with debugging large C++ code. And having to deal with low level stuff like memory fault,memory corruption,compilation/linking issues. My confidence in programming is getting down due to this, but I like being in technical field. Does web application development like LAMP suit (Linux,apache,mysql,php),CSS,scripting (AMONG OTHER WEB DEVELOPMENT RELATED SKILLS) etc need lesser patience with debugging,and understanding of low level stuff, but your analysis/logical skills also get used? Also opportunities in web application development look more. Things like scalability, most of the stuff that Google does fascinates me, but for patience needed for dealing with C++ debugging. I make blunders while coding. How does the field look like outside C++? I am beginning to wonder if as a female, by moving to web application development, I can better manage work life balance. I have seen relatively lesser females in C++ than in Java/.net. Not very sure about web related stuff though. Also, what are the other hot technologies being used in web application development? lamp,css is something I know vaguely. Not in touch with keywords going on in this area. Please help!!.

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• Scoring/analysis of Subjective testing for skills assessment

  - by ChrisBint

  I am lucky in the sense that I have been given the opportunity to be a 'Technical Troubleshooter' for our offshore development team. While I am confident and capable of dealing with most issues, I have come across something that I am not. Based on initial discussions with various team members both on and offshore, a requirement for a 'repeatable, consistent' skills assessment has been identified. In my opinion, the best way to achieve this would be a combination of objective and subjective tests. The former normally being an initial online skills assessment on various subjects, for example General C#, WCF and MVC. The latter being a technical test where the candidate would need to solve various problems and (hopefully) explain the thought processes involved with the solution whilst doing so. Obviously, the first method is consistent, repeatable and extremely accurate. The second is always going to be subjective and based on the approach, the solution (or possibly not) and other factors. The 'scoring' of this is also going to be down to the experience and skills of the assessor and this is where my problem lies; The person that is expected to be the assessor initially (me) has no experience. The people that will ultimately continue this process for other people will never remain the same due to project constraints and internal reasons, this changes the baseline for comparison. I am not aware of any suitable system that can be classed as consistent and repeatable for subjective tests with the 2 factors above, let alone if those did not exist. So anyway, I have to present a plan that will ultimately generate a skills/gap analysis and it is unlikely that I will be able to use an objective method (budget constraints most likely reason). The only option left is the subjective methods and the issues above. Does anyone have any suggestions for an approach that may tick all the boxes?

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• IIS 7.5 Windows Authentication Not Working in Chrome

  - by Sam

  On a new installation of IIS 7.5 I have setup Windows Authentication on my Intranet. The providers I have used are 'NTLM' and negotiate in that order. This works fine in IE and Firefox but in chrome I get the following This web page is not available The web page at http://mysite.com/myintranet.php might be temporarily down or it may have moved permanently to a new web address. Error 338 (net::ERR_INVALID_AUTH_CREDENTIALS): Unknown error. I've tried looking online for a solution without any success. I'm running the latest version of Chrome 21.0.1180.60

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• E-Business Suite Technology Sessions at OAUG Collaborate 12

  - by Max Arderius

  Members of our E-Business Suite Applications Technology Group will be at the OAUG Collaborate 12 conference at the Mandalay Bay Convention Center in Las Vegas, Nevada on April 22 to 26, 2012.  Please drop by any of our sessions to hear the latest news and meet up with us. Speaker Sessions Session 9675Planning Your Oracle E-Business Suite Upgrade from Release 11i to 12.1 and BeyondAnne Carlson, Senior Director, Applications Technology Group, OracleSunday, April 22, 2:00 pm - 3:00 pmLocation: Jasmine B Attend this session to hear the latest Oracle E-Business Suite Release 12.1 upgrade planning tips gleaned from customers who have already performed the upgrade. Youll get specific, cross-product advice on how to decide your project's scope, understand the factors that affect your project's duration, develop a robust testing strategy, leverage Oracle Support resources, and more. In a nutshell, this session tells you things you need to know before embarking upon your Release 12.1 upgrade project. Session 9401Minimizing Oracle E-Business Suite Maintenance DowntimesElke Phelps, Principal Product Manager, Applications Technology Group, OracleKevin Hudson, Sr. Director, Applications Technology Group, OracleSunday, April 22, 2:10 pm - 3:10 pmLocation: South Seas EThis session starts with an architecture review of Oracle E-Business Suite fundamentals and then moves to a practical view of the different tools and approaches for downtimes. Topics include patching shortcuts, merging patches, distributing worker processes across multiple servers, running ADPatch in no-interactive mode, staged APPL_TOPs, shared file systems, deferring system-wide database tasks, avoiding resource bottlenecks etc... This session also describes the online patching capabilities coming in Release 12.2. Session 9368Oracle E-Business Suite Technology: Latest Features and RoadmapLisa Parekh, Vice President, Applications Technology Group, Oracle Sunday, April 22, 4:30 pm - 5:30 pmLocation: South Seas EThis session provides an overview of Oracle E-Business Suite technology strategy, the capabilities and associated business benefits of recent releases, as well as a review of the product roadmap. As a cornerstone session for Oracle E-Business Suite technology, come hear about the latest usability enhancements, systems administration and configuration management tools, security-related updates, and tools and options for extending, customizing, and integrating the Oracle E-Business Suite with other applications. Session 10709Oracle E-Business Suite Applications Strategy and General Manager UpdateCliff Godwin, Sr. VP, Application Development, OracleMonday, April 23, 2:30 pm - 3:30 pmLocation: Mandalay Bay DIn this session, hear from Oracle E-Business Suite General Manager Cliff Godwin as he delivers an update on the Oracle E-Business Suite product line. The session covers the value delivered by the current release of Oracle E-Business Suite applications, the momentum, and how Oracle E-Business Suite applications integrate into Oracle’s overall applications strategy. You will come away with an understanding of the value Oracle E-Business Suite applications deliver now and in the future. Session 9398How to Reduce TCO Using Oracle Application Management Suite for Oracle E-Business SuiteAngelo Rosado, Principal Product Manager, Applications Technology Group, OracleKenneth Baxter, Principal Product Strategy Manager, Management Pack Fusion Middleware Management, OracleTuesday, April 24, 8:00 am - 9:00 amLocation: Breakers GThis session covers the methods and tools you can use to gain insights into your end users, troubleshoot performance problems, define service-level objectives, and proactively monitor your end-to-end Oracle E-Business Suite environment to meet your availability and performance targets. Come hear how you can manage, diagnose, and monitor the Oracle E-Business Suite environment from a single console by using Oracle Enterprise Manager together with the Oracle Application Management Suite for Oracle E-Business Suite. Session 9370 Coexistence of Oracle E-Business Suite and Oracle Fusion Applications: Platform Perspective Nadia Bendjedou, Senior Director, Product Strategy, Oracle Tuesday, April 24, 2:00 pm - 3:00 pm Location: South Seas E Join us at this session if you are wondering which tools to integrate your data, your processes and your User Interface. Or what tools to customize and extend your screens and reports (OAF, Forms, ADF, Oracle Reports, BI etc....), what tools to secure, protect and manage your Oracle E-Business Suite etc... Or simply if you are looking for a technical roadmap for your Oracle E-Business Suite infrastructure to CO-EXIST with the rest of your enterprise applications including Oracle Fusion Applications. Session 9375 Oracle E-Business Suite Directions: Deployment and System AdministrationMax Arderius, Manager, Applications Development Group, OracleTuesday, April 24, 4:30 pm - 5:30 pmLocation: Breakers GWhat's coming in the next major version of Oracle E-Business Suite 12? This session covers the latest technology stack, including the use of Oracle WebLogic Server and Oracle Database 11g Release 2. Topics include an architectural overview, installation and upgrade options, new configuration options, and new tools for hot-cloning and automated "lights out" cloning. Learn about how online patching will reduce your database patching downtimes to the time it takes to bounce your database server.Session 9369Oracle E-Business Suite Technology Certification Primer and RoadmapSteven Chan, Sr. Director, Applications Technology Group, Oracle Wednesday, April 25, 8:15 am - 9:15 amLocation: South Seas FThis Oracle Development session summarizes the latest certifications and roadmap for the Oracle E-Business Suite technology stack, including database releases/options, Java, Oracle Forms, Oracle Containers for J2EE, desktop OS, browsers, JRE releases, Office/OpenOffice, development and Web authoring tools, user authentication and management, BI, security options, clouds, Oracle VM etc.... It also covers the most-commonly-asked questions about technology stack component support dates and upgrade implications. Session 9407The Latest Oracle E-Business Suite Release User Interface and Usability EnhancementsGustavo Jimenez, Sr. Manager, Applications Technology Group, Oracle Wednesday, April 25, 1:00 pm - 2:00 pmLocation: South Seas GIn this session, developers will get a detailed look at new features designed to enhance usability, offer more capabilities for personalization and extensions, and support the development and use of dashboards and Web services. Topics include rich new UI capabilities such as new home page features, Navigator and Favorites pull-down menus, Oracle ADF task flows etc.... In addition, we will cover the personalization/extensibility enhancements, business layer extensions, Oracle ADF integration and much more. Session 9374Best Practices for Oracle E-Business Suite Performance Tuning and Upgrade OptimizationIsam Alyousfi, Senior Director, Applications Performance, OracleUdayan Parvate, Director, Release Engineering, Quality and Release Management, Oracle Thursday, April 26, 8:30 am - 9:30 amLocation: South Seas FThis presentation will offer tips and techniques on tuning all the layers of the Oracle E-Business Suite stack including the various tiers of the Oracle E-Business Suite environment. You will learn about tuning Oracle Forms, Concurrent Manager, Apache, and Oracle Discoverer. Track down memory leaks and other issues on the Java and Java Virtual Machine layers. The session also covers Oracle E-Business Suite product-level tuning, including Oracle Workflow, Oracle Order Management, Oracle Payroll, and other modules.Session 9412 Oracle E-Business Suite 12.1 Desktop Integration: Beyond Oracle Applications Desktop IntegratorGustavo Jimenez, Sr. Manager, Applications Technology Group, OracleThursday, April 26, 8:30 am - 9:30 amLocation: Breakers GThis session describes the new expanded functionality in Oracle Web Applications Desktop Integrator, Oracle Report Manager, and dedicated integrators. You have more options for desktop integration now, not fewer. Topics include an overview of prepackaged solutions for integrating Oracle E-Business Suite with desktop applications such as Microsoft Excel, Word, and Projects. The session also discusses how you can use the Desktop Integration Framework feature to create your own integrators quickly and easily.Session 9533 Upgrading your Customizations to Oracle E-Business Suite Release 12.1Sara Woodhull, Principal Product Manager, Applications Technology Group, Oracle Thursday, April 26, 11:00 am - 12:00 pmLocation: South Seas FHave you personalized Forms or OA Framework screens? Have you used mod_plsql or Applications Express to tailor your Release 11i functionality? Have you extended or customized your Release 11i environment using other tools? This session will help you understand customization scenarios, use cases, tools, and technologies for ensuring that your Oracle E-Business Suite Release 12.1 environment fits your users' needs closely and that any future customizations will be easy to upgrade. Special Interest Groups (SIG) Session 10535OAUG Database SIG- Part IMichael Brown, Colibri Limited Company Sunday, April 22, 3:20 pm - 4:20 pmLocation: South Seas FThis is the annual meeting of the Database SIG at Collaborate. The call for candidates for the chair will be closed at the meeting. Plans include a speaker from Oracle and a presentation on applications performance. The details of the meeting will be posted on http://www.dbsig.com. Guest Presentation: Oracle E-Business Suite Database PerformanceIsam Alyousfi, Senior Director, Applications Performance, Oracle Session 10720OAUG EBS Applications Technology SIG- Part ISrini Chaval, Cummins Monday, April 23, 2:30 pm - 3:30 pmLocation: South Seas F Guest Presentation:Oracle E-Business Suite Technology Certification RoadmapSteven Chan, Sr. Director, Applications Technology Group, Oracle Session 10510OAUG EBS Applications Technology SIG- Part IISrini Chaval, CumminsMonday, April 23, 3:45 pm - 4:45 pmLocation: South Seas F Guest Presentation:Oracle E-Business Suite 12.2 Online Patching Kevin Hudson, Sr. Director, Applications Technology Group, Oracle Session 10522 OAUG Upgrade SIG- Part IISandra Vucinic, VLAD Group, Inc. Wednesday, April 25, 3:00 pm - 4:00 pmLocation: South Seas FUpgrade SIG will host a business meeting followed by panel (Q&A) related to EBS Upgrade topics and Oracle presentation. Guest Presentation:Upgrading E-Business Suite Amrita Mehrok, Director, Financials Product Strategy, Oracle Nadia Bendjedou, Senior Director, Product Strategy, Oracle Session 10722OAUG Upgrade SIG- Part IISandra Vucinic, VLAD Group, Inc. Wednesday, April 25, 4:15 pm - 5:15 pmLocation: South Seas FUpgrade SIG will host a business meeting followed by panel (Q&A) related to EBS Upgrade topics and Oracle presentation. Guest Presentation:Tuning the Oracle E-Business Suite Upgrade Isam Alyousfi, Senior Director, Applications Performance, Oracle Panels Session 9360Oracle E-Business Suite Cloning PanelSandra Vucinic, VLAD Group, Inc. Guest Speaker: Max Arderius, Manager, Applications Technology Group, OracleWednesday, April 25, 9:30 am - 10:30 amLocation: South Seas FThis panel will discuss differences between available release 11i, R12 and R12.1 cloning methods. Advantages and disadvantages of each cloning method will be discussed in depth. This panel of experienced database administrators will lead a discussion focusing on the questions such as “which cloning method is best to use in your particular environment”. Attendees will gain practical knowledge, tips and tricks to assist with cloning of Oracle E-Business Suite release 11i, R12 and R12.1 environments. Session 10022Oracle Applications Tuning PanelMark Farnham, Rightsizing, Inc.Guest Speaker: Isam Alyousfi, Senior Director, Applications Performance, OracleThursday, April 26, 09:45 am - 10:45 amLocation: South Seas FThis applications performance panel session, sponsored by the OAUG Database SIG, provides a Q&A forum focused on helping you address your Oracle Applications (Oracle E-Business Suite and Oracle's PeopleSoft Enterprise and Siebel applications) performance- and scalability-related issues. The panel comprises several well-known Oracle Applications performance experts. Topic areas include Oracle Database; the network; and the applications tier, including patching and upgrade performance. For complete listing of all speaker sessions and other activities, please visit the OAUG Collaborate Web Site.

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• How to copy path on a mac?

  - by AngryHacker

  Windows refugee here. On Windows you can easily copy the path and paste it elsewhere to get to the directory. Here is the situation on the Mac. I am in the Finder 20 folders down and I see the file I want. I go to my application and want to open it, so I pick Open Document from the File menu. However, it is exceedingly difficult and time-consuming to get to the place I want. Is there a way to copy the path in the finder and paste it in the File Open dialog of my application?

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• Should Development / Testing / QA / Staging environments be similar?

  - by Walter White

  Hi all, After much time and effort, we're finally using maven to manage our application lifecycle for development. We still unfortunately use ANT to build an EAR before deploying to Test / QA / Staging. My question is, while we made that leap forward, developers are still free to do as they please for testing their code. One issue that we have is half our team is using Tomcat to test on and the other half is using Jetty. I prefer Jetty slightly over Tomcat, but regardless we using WAS for all the other environments. My question is, should we develop on the same application server we're deploying to? We've had numerous bugs come up from these differences in environments. Tomcat, Jetty, and WAS are different under the hood. My opinion is that we all should develop on what we're deploying to production with so we don't have the problem of well, it worked fine on my machine. While I prefer Jetty, I just assume we all work on the same environment even if it means deploying to WAS which is slow and cumbersome. What are your team dynamics like? Our lead developers stepped down from the team and development has been a free for all since then. Walter

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• Troubleshooting PC

  - by srand

  After playing PC games after a few hours I decided to take a break. When I opened up My Computer in Windows 7 I noticed I one of my drives had disappeared. Thinking it was just a glitch, I tried to restart. Upon restart, the BIOS took forever to get through (I didn't notice my disappeared hard drive in the listed drives) and the computer seemed stuck at the "Starting Windows" screen. I hard shut down everything. Opened up the case, used canned air to clear the dust out and made sure all devices were snugly in place. I hooked everything up and powered on. This time, after a few seconds the computer restarted (nothing showed up on screen either). After its restart, the computer didn't do anything. The hard drive indicator light was on the whole time. What happened? :( PC Specs: Windows 7, 3GB RAM, Core 2 Duo, 3 Hard drives

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• Troubleshooting PC

  - by srand

  After playing PC games after a few hours I decided to take a break. When I opened up My Computer in Windows 7 I noticed I one of my drives had disappeared. Thinking it was just a glitch, I tried to restart. Upon restart, the BIOS took forever to get through (I didn't notice my disappeared hard drive in the listed drives) and the computer seemed stuck at the "Start Windows" screen. I hard shut down everything. Opened up the case, used canned air to clear the dust out and made sure all devices were snugly in place. I hooked everything up and powered on. This time, after a few seconds the computer restarted (nothing showed up on screen either). After its restart, the computer didn't do anything. The hard drive indicator light was on the whole time. What happened? :( PC Specs: Windows 7, 3GB RAM, Core 2 Duo, 3 Hard drives

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• Kill your temp tables using keyboard shortcuts : SSMS

  - by jamiet

  Here’s a nifty little SSMS trick that my colleague Tom Hunter educated me on the other day and I thought it was worth sharing. If you’re a keyboard shortcut junkie then you’ll love it. How often when working with code in SSMS that contains temp tables do you see the following message: Msg 2714, Level 16, State 6, Line 78 There is already an object named '#table' in the database. Quite often I would imagine, it happens to me all the time! Usually I write a bit of code at the top of the query window that goes and drops the table if it exists but there’s a much easier way of dealing with it. Remember that temp tables disappear as soon as your sessions ends hence wouldn’t it be nice if there were a quick way of recycling (i.e. stopping and restarting) your session? Well turns out there is and all it takes is a sequence of 4 keystrokes: Bring up the context menu using that mythically-named button that usually sits 3 to the right of the space bar ‘C’ for “Connection” ‘H’ for “Change Connection…” ‘Enter’ to select the same connection you had open last time (screenshots below) Once you’ve done it a few times you’ll probably have the whole sequence down to less than a second. Such a simple little trick, I’m annoyed with myself for it not occurring to me before! The only caveat is that you’ll need a “USE <database>” directive at the top of your query window but I don’t think that’s much of a bind! That is all other than to say if you like little SSMS titbits like this then Lee Everest’s blog is a good one to keep an eye on! @jamiet Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• Using Completed User Stories to Estimate Future User Stories

  - by David Kaczynski

  In Scrum/Agile, the complexity of a user story can be estimated in story points. After completing some user stories, a programmer or team of programmers can use those experiences to better estimate how much time it might take to complete a future user story. Is there a methodology for breaking down the complexity of user stories into quantifiable or quantifiable attributes? For example, User Story X requires a rich, new view in the GUI, but User Story X can perform most of its functionality using existing business logic on the server. On a scale of 1 to 10, User Story X has a complexity of 7 on the client and a complexity of 2 on the server. After User Story X is completed, someone asks how long would it take to complete User Story Y, which has a complexity of 3 on the client and 6 on the server. Looking at how long it took to complete User Story X, we can make an educated estimate on how long it might take to complete User Story Y. I can imagine some other details: The complexity of one attribute (such as complexity of client) could have sub-attributes, such as number of steps in a sequence, function points, etc. Several other attributes that could be considered as well, such as the programmer's familiarity with the system or the number of components/interfaces involved These attributes could be accumulated into some sort of user story checklist. To reiterate: is there an existing methodology for decomposing the complexity of a user story into complexity of attributes/sub-attributes, or is using completed user stories as indicators in estimating future user stories more of an informal process?

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• Revisiting ANTS Performance Profiler 7.4

  - by James Michael Hare

  Last year, I did a small review on the ANTS Performance Profiler 6.3, now that it’s a year later and a major version number higher, I thought I’d revisit the review and revise my last post. This post will take the same examples as the original post and update them to show what’s new in version 7.4 of the profiler. Background A performance profiler’s main job is to keep track of how much time is typically spent in each unit of code. This helps when we have a program that is not running at the performance we expect, and we want to know where the program is experiencing issues. There are many profilers out there of varying capabilities. Red Gate’s typically seem to be the very easy to “jump in” and get started with very little training required. So let’s dig into the Performance Profiler. I’ve constructed a very crude program with some obvious inefficiencies. It’s a simple program that generates random order numbers (or really could be any unique identifier), adds it to a list, sorts the list, then finds the max and min number in the list. Ignore the fact it’s very contrived and obviously inefficient, we just want to use it as an example to show off the tool: 1: // our test program 2: public static class Program 3: { 4: // the number of iterations to perform 5: private static int _iterations = 1000000; 6: 7: // The main method that controls it all 8: public static void Main() 9: { 10: var list = new List<string>(); 11: 12: for (int i = 0; i < _iterations; i++) 13: { 14: var x = GetNextId(); 15: 16: AddToList(list, x); 17: 18: var highLow = GetHighLow(list); 19: 20: if ((i % 1000) == 0) 21: { 22: Console.WriteLine("{0} - High: {1}, Low: {2}", i, highLow.Item1, highLow.Item2); 23: Console.Out.Flush(); 24: } 25: } 26: } 27: 28: // gets the next order id to process (random for us) 29: public static string GetNextId() 30: { 31: var random = new Random(); 32: var num = random.Next(1000000, 9999999); 33: return num.ToString(); 34: } 35: 36: // add it to our list - very inefficiently! 37: public static void AddToList(List<string> list, string item) 38: { 39: list.Add(item); 40: list.Sort(); 41: } 42: 43: // get high and low of order id range - very inefficiently! 44: public static Tuple<int,int> GetHighLow(List<string> list) 45: { 46: return Tuple.Create(list.Max(s => Convert.ToInt32(s)), list.Min(s => Convert.ToInt32(s))); 47: } 48: } So let’s run it through the profiler and see what happens! Visual Studio Integration First, let’s look at how the ANTS profilers integrate with Visual Studio’s menu system. Once you install the ANTS profilers, you will get an ANTS menu item with several options: Notice that you can either Profile Performance or Launch ANTS Performance Profiler. These sound similar but achieve two slightly different actions: Profile Performance: this immediately launches the profiler with all defaults selected to profile the active project in Visual Studio. Launch ANTS Performance Profiler: this launches the profiler much the same way as starting it from the Start Menu. The profiler will pre-populate the application and path information, but allow you to change the settings before beginning the profile run. So really, the main difference is that Profile Performance immediately begins profiling with the default selections, where Launch ANTS Performance Profiler allows you to change the defaults and attach to an already-running application. Let’s Fire it Up! So when you fire up ANTS either via Start Menu or Launch ANTS Performance Profiler menu in Visual Studio, you are presented with a very simple dialog to get you started: Notice you can choose from many different options for application type. You can profile executables, services, web applications, or just attach to a running process. In fact, in version 7.4 we see two new options added: ASP.NET Web Application (IIS Express) SharePoint web application (IIS) So this gives us an additional way to profile ASP.NET applications and the ability to profile SharePoint applications as well. You can also choose your level of detail in the Profiling Mode drop down. If you choose Line-Level and method-level timings detail, you will get a lot more detail on the method durations, but this will also slow down profiling somewhat. If you really need the profiler to be as unintrusive as possible, you can change it to Sample method-level timings. This is performing very light profiling, where basically the profiler collects timings of a method by examining the call-stack at given intervals. Which method you choose depends a lot on how much detail you need to find the issue and how sensitive your program issues are to timing. So for our example, let’s just go with the line and method timing detail. So, we check that all the options are correct (if you launch from VS2010, the executable and path are filled in already), and fire it up by clicking the [Start Profiling] button. Profiling the Application Once you start profiling the application, you will see a real-time graph of CPU usage that will indicate how much your application is using the CPU(s) on your system. During this time, you can select segments of the graph and bookmark them, giving them mnemonic names. This can be useful if you want to compare performance in one part of the run to another part of the run. Notice that once you select a block, it will give you the call tree breakdown for that selection only, and the relative performance of those calls. Once you feel you have collected enough information, you can click [Stop Profiling] to stop the application run and information collection and begin a more thorough analysis. Analyzing Method Timings So now that we’ve halted the run, we can look around the GUI and see what we can see. By default, the times are shown in terms of percentage of time of the total run of the application, though you can change it in the View menu item to milliseconds, ticks, or seconds as well. This won’t affect the percentages of methods, it only affects what units the times are shown. Notice also that the major hotspot seems to be in a method without source, ANTS Profiler will filter these out by default, but you can right-click on the line and remove the filter to see more detail. This proves especially handy when a bottleneck is due to a method in the BCL. So now that we’ve removed the filter, we see a bit more detail: In addition, ANTS Performance Profiler gives you the ability to decompile the methods without source so that you can dive even deeper, though typically this isn’t necessary for our purposes. When looking at timings, there are generally two types of timings for each method call: Time: This is the time spent ONLY in this method, not including calls this method makes to other methods. Time With Children: This is the total of time spent in both this method AND including calls this method makes to other methods. In other words, the Time tells you how much work is being done exclusively in this method, and the Time With Children tells you how much work is being done inclusively in this method and everything it calls. You can also choose to display the methods in a tree or in a grid. The tree view is the default and it shows the method calls arranged in terms of the tree representing all method calls and the parent method that called them, etc. This is useful for when you find a hot-spot method, you can see who is calling it to determine if the problem is the method itself, or if it is being called too many times. The grid method represents each method only once with its totals and is useful for quickly seeing what method is the trouble spot. In addition, you can choose to display Methods with source which are generally the methods you wrote (as opposed to native or BCL code), or Any Method which shows not only your methods, but also native calls, JIT overhead, synchronization waits, etc. So these are just two ways of viewing the same data, and you’re free to choose the organization that best suits what information you are after. Analyzing Method Source If we look at the timings above, we see that our AddToList() method (and in particular, it’s call to the List<T>.Sort() method in the BCL) is the hot-spot in this analysis. If ANTS sees a method that is consuming the most time, it will flag it as a hot-spot to help call out potential areas of concern. This doesn’t mean the other statistics aren’t meaningful, but that the hot-spot is most likely going to be your biggest bang-for-the-buck to concentrate on. So let’s select the AddToList() method, and see what it shows in the source window below: Notice the source breakout in the bottom pane when you select a method (from either tree or grid view). This shows you the timings in this method per line of code. This gives you a major indicator of where the trouble-spot in this method is. So in this case, we see that performing a Sort() on the List<T> after every Add() is killing our performance! Of course, this was a very contrived, duh moment, but you’d be surprised how many performance issues become duh moments. Note that this one line is taking up 86% of the execution time of this application! If we eliminate this bottleneck, we should see drastic improvement in the performance. So to fix this, if we still wanted to maintain the List<T> we’d have many options, including: delay Sort() until after all Add() methods, using a SortedSet, SortedList, or SortedDictionary depending on which is most appropriate, or forgoing the sorting all together and using a Dictionary. Rinse, Repeat! So let’s just change all instances of List<string> to SortedSet<string> and run this again through the profiler: Now we see the AddToList() method is no longer our hot-spot, but now the Max() and Min() calls are! This is good because we’ve eliminated one hot-spot and now we can try to correct this one as well. As before, we can then optimize this part of the code (possibly by taking advantage of the fact the list is now sorted and returning the first and last elements). We can then rinse and repeat this process until we have eliminated as many bottlenecks as possible. Calls by Web Request Another feature that was added recently is the ability to view .NET methods grouped by the HTTP requests that caused them to run. This can be helpful in determining which pages, web services, etc. are causing hot spots in your web applications. Summary If you like the other ANTS tools, you’ll like the ANTS Performance Profiler as well. It is extremely easy to use with very little product knowledge required to get up and running. There are profilers built into the higher product lines of Visual Studio, of course, which are also powerful and easy to use. But for quickly jumping in and finding hot spots rapidly, Red Gate’s Performance Profiler 7.4 is an excellent choice. Technorati Tags: Influencers,ANTS,Performance Profiler,Profiler

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