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• Release Notes for 8/23/2012

  Below are the release notes from today's deployment. Improved the inline diff load performance for large diff sets Fixed a few issues related to sending and saving comments within a Pull Request Improved stability of the notification service Fixed an issue when directly linking to a file in the source browser, selected file was not being shown in the tree view Have ideas on how to improve CodePlex? Please visit our suggestions page! Vote for existing ideas or submit a new one. As always you can reach out to the CodePlex team on Twitter @codeplex or reach me directly @mgroves84

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• 2d engine with WebGL

  - by Philipp

  I am currently developing a HTML5 canvas game with a sprite-based 2d engine. The engine is working well so far, but now I thought that I could maybe add some cool graphic effects when I would re-implement the whole engine with WebGL. The whole graphic engine would stay strictly two-dimensional (think of it as a 3d world where the z coordinate of all vertices is 0.0). What I hope to gain from this is the ability to use pixel shaders to create special effects. I also think that the performance could improve. What do you think about that plan?

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• Row Versioning Concurrency in SQL Server

  The optimistic concurrency model assumes that several concurrent transactions can usually complete without interfering with each other, and therefore do not require draconian locking on the resources they access. SQL Server 2005, and later, implements a form of this model called row versioning concurrency. It works by remembering the value of the data at the start of the transaction and checking that no other transaction has modified it before committing. If this optimism is justified for the pattern of activity within a database, it can improve performance by greatly reducing blocking. Kalen Delaney explains how it works in SQL Server.

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• What should be stored in UserContext?

  - by HonorGod

  From my general understanding I believe UserContext for a web application is supposed to hold user authentication and authorization (user roles) information. As part of user roles, there are definitions on who can access what data and accordingly the corresponding reference data is loaded into the UserContext as well. Is this a good practice to load and use reference data from UserContext? Does this have any impact with the number of sessions vs size of data it is holding inside JVM? I am thinking we use UserContext only for authentication and authorization but load the reference data from cache on demand and use it if required.

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• Letters of recommendation from customers? [closed]

  - by dafrazzman

  I am leaving my job soon and am looking for letters of recommendation. My problem is, I've worked more closely with my customers than my project lead (not technical) or manager (the customers usually talk to me first and rarely even if CC my lead if I don't). So in this case, the customer has seen my work more closely than my leadership and can better attest to my abilities, communication skills, and performance. Are recommendations from customers viable, or will they be largely dismissed? Secondarily, can they be more useful than letters from managers that don't really know your work at all? Note: I already have a letter from the only coworker I've really worked with, but I'm looking to get more than one for good measure.

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• Using Friendly Names for SQL Servers via DNS

  Wouldn't it be great if your HR folks only had to put in HR-SQL.mydomain.com for the database connection in their reports? They wouldn't have to remember it was on server Nile and they certainly wouldn't have to change their reports if you migrated their database from the Nile server to the server named Danube. In DNS there are two easy ways to do this. New! SQL Monitor 3.0 Red Gate's multi-server performance monitoring and alerting tool gets results from Day One.Simple to install and easy to use – download a free trial today.

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• Multiple parameters vs single parameter(object with multiple properties)

  - by Shwetanka

  I have an Entity Student with following properties - (name, joinedOn, birthday, age, batch, etc.) and a function fetchStudents(<params>). I want to fetch students based on multiple filters. In my method I have two ways to pass filters. Pass all filters as params to the method Make a class StudentCriteria with filters as fields and then pass the object of this class While working in java I always go with the second option but recently I'm working in php and I was advised to go with the first way. I am unable to figure out which way is better in maintaining the code, reusability and performance wise. Thanks.

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• How many LOC/day "top" (google, MS, FB) engeneers produce? [closed]

  - by NoSenseEtAl

  I know that 25 lines of lock free code is harder to do than 1000 lines of On_Click()... code but I wonder does anybody know in general what is the productivity of the average programmer in top tech companies. Motivation: I often go ??? mode when I see how low LoC/ day i produce(Im new to the my current language and Im part of the big project, but still..) and I would like to know how bad I am. :) If you are gonna warn me that LoC is a terrible measure I agree, but it is most exact one in a sense that I cant go and write 0.01% of Chrome or IE and say it took me this long so....

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• Off-Page SEO - The Ethos of Backlinking

  I want to delve under the bonnet more regarding off-page, so let's get to it! How do we get backlinks to our site? It may seem easy and what springs to mind for many is to ask someone to link to your site while in return you link back to theirs. In general this is a very fair and sensible undertaking, it really is. However, in Google's eyes and perhaps in the other two big search engines too now, its not counted as a valuable link any longer.

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• Learning MySQL Query optimization

  - by recluze

  I've been doing web/desktop/server development for a while and have worked with many databases (mysql mostly). I've come to the point in my career when I need to have someone look at my queries because they're 'kind of slow'. I believe it's now time to start learning query optimization. While I know the basics of index and joins etc., I'm not familiar with how to use, say, the EXPLAIN output to improve performance of my queries. I have not been able to find any online material that starts with the basics and takes me to application. Getting a book is not an option right now so I'm looking for tips about how to proceed with this. I hope this question is general enough not to get closed.

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• Where can I get the 10k common English dictionary words which Stack overflow uses in related question? [migrated]

  - by itpian.com

  Where can I get the 10k common English dictionary words which Stack overflow uses in related question? Here in SE podcast - http://blog.stackoverflow.com/2008/12/podcast-32/ One of our major performance optimizations for the “related questions” query is removing the top 10,000 most common English dictionary words (as determined by Google search) before submitting the query to the SQL Server 2008 full text engine. It’s shocking how little is left of most posts once you remove the top 10k English dictionary words. This helps limit and narrow the returned results, which makes the query dramatically faster.

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• What is your personal learning process? [closed]

  - by yadvent

  I just wanted to say hello and ask a few simple questions. I have recently dove into programming with c# and have been curious what everyone else's experiences have been with when learning and starting out. What are some things that you can say that really have made a difference in your understanding and usages of any particular language? I lurk several forums but for some reason have always just kept to myself, and I've realized today that I'm not fully utilizing my resources when it comes to interacting with the community. With that being said, I realize that everyone that is interested in programming inherently is a natural problem solver and would like also to ask you to share your process of learning. Are you the type to have a short term project to tackle a general set of problems you're likely to encounter? Or are you a type of programmer that practices by zeroing in on a specific few problems you would like to solve? Any reply will be greatly appreciated Thank you :)

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• How is this paradigm/style called?

  - by McMannus

  I have the following situation: I'm developing an add-in for a UML modeling tool. The models that can be created by the user are stored inside the main application and a limited access to the models is given through its API. However, the add-in has a lot of callbacks for events that are triggered by the main application, when changes to the model occur by the user. Since the models are already stored once in the main application, I considered it not practicable to duplicate the models in the add-in, which leads to the fact that I have only behavior in the add-in, rather than having a state. This behavior is mainly expressed by static functions, that are organized in functional cohesive classes. The callbacks for the events have always references to the model elements relevant for the specifc event that ocurred. First, it seemed to me that this is a procedural style in general, but procedural style doesn't consider events/callbacks, so this boils down to the question. How is this programming style called?

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• Do You Want be on Silverlight TV?

  Silverlight is surging and Silverlight TV is also doing well on Channel 9 and gaining momentum thanks to all of you who watch our episodes! Ive been asked a few times how community members can appear on the show. First, we love community members appearing on the show. Some of our best episodes have come from the community efforts. So here are 2 general guidelines for submitting your appearance on Silverlight TV: You are going to be on the Redmond campus in the future You have something incredibly...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• GNU GPL LICENSE

  - by user577616

  I develop an android application and in my app I use a libary (jar) that I download from the internet. This jar is open-source under the "GNU General Public License v2". I tried to read the text of the license but had difficulty understanding it. My question is: can I use this libary without changing nothing in the jar in a commercial application? I will be making profit from selling my app which uses this GPL-ed .jar file. If possible, I would like to avoid converting my application to open-source.

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• Initialize array in O(1) -- how is this trick called?

  - by user946850

  There is this pattern that trades performance of array access against the need to iterate it when clearing it. You keep a generation counter with each entry, and also a global generation counter. The "clear" operation increases the generation counter. On each access, you compare local vs. global generation counters; if they differ, the array has been reset. This has come up in StackOverflow recently, but I don't remember if this trick has an official name. Does it? One use case is Dijkstra's algorithm if only a tiny subset of the nodes has to be relaxed, and if this has to be done repeatedly.

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• Moving from Windows 8.1 to Ubuntu - what can I do to replace OneDrive?

  - by gh0st_h4wk

  That's it - I got tired from the constant problems on and about Windows I'm having. Network issues, performance issues, compatibility issues... But I'll seriously miss OneDrive integration (all my files are there). There is some kind of app that can sync with it? And what is the easiest way to install JDK? Through PPAs? Note that I have no plans to keep Windows, I'll just replace the d*mn thing with Ubuntu (maybe Mint).

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• What is the easiest and fastest way to display an SDL_Surface in a window with SDL2?

  - by Semmu

  I would like to have an SDL_Surface representing the contents of the window, just like in the old days with SDL1.2. What is the best and fastest way to do it in SDL2? What I found is that I need an SDL_Window, an SDL_Renderer for that window, an SDL_Texture to render, and an SDL_Surface to create a texture from. This seems a bit too much to me, since I just want to display a single image on the screen. Not to mention the impact on the performance. On my machine (Lenovo Y510p laptop) this whole procedure takes 9ms, without any memory allocation, only using pre-allocated variables and totally black SDL_Surface. Is there a way I could speed up things?

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• Diminishing Returns - When is it Time to Take Your Website Live?

  Being a perfectionist is not always the best way to be. Especially in a world where being first to market isn't the worst thing ever. Like many things in life, deciding when to take your new website live is a fine balancing act. The sooner you can start building up a readership or client base, the better; but you risk serious damage to your site's reputation if its functional and technical performance is below par. So when is the right time?

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• Where should I ask for feedbacks about web design? [closed]

  - by mariosangiorgio

  Possible Duplicate: Where can I get my website critiqued I am developing my personal website and I'd like to have feedbacks about its design. Is there any site/forum you would recommend me? I know that the best solution would be to hire a professional web designer and have him design my website, but I am also interested in understanding how to improve my design skills. Of course any recommended book, website, resource is more than welcome. I am not posting here the link to my home page because I think this Q/A site is more about web-development in general, but if you'd like to see my personal page and give some feedback I'll link it.

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• customizing google custom search

  - by user19866

  I am using google custom search for my site, I want google to provide at most 2 searches from a site. I am not sure whether it is possible or not but it seems there is no such option on google CSE. For example my CSE has 10 listed sites, what I want is that whenever user makes a search then search results should show at most two links from a site. In general CSE is resulting multiple results from one site only and those comes on page 1, if it is at most 2 from a site then user has better chance to have links from other sites too.

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• Les attaques sur le web 2.0 ont augmenté de 500 %, tour d'horizon des dernières tendances cybercrimi

  Les attaques sur le web 2.0 ont augmenté de 500 %, tour d'horizon des dernières tendances cybercriminelles Mardi, le réseau de distribution d'applications Blue Coat Systems a rendu public un rapport très complet sur les dernières tendances en matière de cybercriminalité. Ce qui a changé recemment, c'est l'utilisation du web 2.0 qui s'est envolée en quelques mois. De 2008 à 2009, le nombre d'attaques utilisant des sites communautaires à augmenté de 500 % ! Facebook et Twitter sont en tête de liste des résaux sociaux visés. Cette étude analyse les chiffres de 2009. Le constat général est que, depuis l'avalanche "ILoveYou", les gens ont pris conscience du danger potentiel contenu ...

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• How easy is it to change languages/frameworks professionally? [closed]

  - by user924731

  Forgive me for asking a career related question - I know that they can be frowned upon here, but I think that this one is general enough to be useful to many people. My question is: How easy/difficult is it to get a job using language/frameowork B, when your current job uses language/framework A? e.g. If you use C#/ASP.NET in your current job, how difficult would it be to get a job using python/django, or PHP/Zend, or whatever (the specifics of the example don't matter). Relatedly, if you work in client side scripting, but perhaps work on server-side projects in your own time, how difficult would it be to switch to server-side professionally? So, to sum up, does the choice of which languages/frameworks use at work tend to box you in professionally?

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• Java EE???????????!? ?Oracle ADF???????!!|WebLogic Channel|??????

  - by ???02

  WebLogic Server???Java EE??????????????????????Oracle Application Development Framework(ADF)????????????Oracle ADF????????????????????????????????????????GUI?????????????????Web???????????????????????????????????????/??????????????????????Fusion Application???????/?????????Oracle ADF?????????Java EE????????????????????????????? Fusion Middleware?????????????????????????Oracle ADF???????????????(???)???????????????????　???Web??????????????????????????????1???MVC???????????????????????·????????Model?????????????????????View?????Model?View??????Controller????3???????????????????????????????????????Model?View?Controller??????????????????????????????????????????????????????????????????????????????????????????????　????MVC???????????????????????????Controller?Model?????????EJB????????Web???????Model????????????????????????????View?Model??????Model????????????????????????????????????????????????2004???????????Oracle ADF???????????????????????????Java EE???????????????·??·???????????Oracle Technology Network:?Oracle Applicastion Development Framework????Java EE?????????????????　Oracle ADF??????????????????????????????????????????????????IDE?JDeveloper??????????????????????????????WYSIWYG????????????????????????????????????????????????????????????SQL??????????·????·??????????????????????????Oracle Technology Network:?Oracle JDeveloper ????????Oracle JDeveloper 11g ???????? 　???Oracle ADF??????????????????????/????????????Web UI??????????????????????????????????Oracle Enterprise Manager?Oracle Enterprise Performance Management?Oracle Business Intelligence??????????????????????????????????·?????????Fusion Application????????????????Oracle ADF??????????????????????/???????????????????????????????????150?????GUI?????????·???????????　Oracle ADF???????????????ADF Faces???ADF Task Flow???ADF Model?????????????View?Controller?Model?????????????????????????????????????ADF Security??????????????????????????????????ADF Business Components????????????　??Oracle ADF???????Web??????????????????????????????????????????????????????Oracle ADF???ADF Faces???JSF?????150?????GUI???????????????&????????????????Ajax??????????????????????　???????????????????????????????????????????????????GUI??????????????????????????????????????????????GUI????????????·???????????????????????????????Web???????????????　Oracle ADF???Web?????????????????????????????Excel?????????????????????????????????????Desktop Integration???????????????????????????????????????Excel??????????????????????????　????????????????????·????????????????????????ADF Mobile???????????????????????????Web???????????????????????????????·???????????????·??????????????????????????????????ADF Mobile??????·????????????????????????·?????????????????ADF?????????????????　?ADF Business Components???ADF Task Flow???????????????ADF Business Components?J2EE????·???????????????·?????????????????????????·????·??????????????????????????????????????·??????Java???????????????????????JDBC??????????????????????????　???ADF Task Flow?JSF?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????URL????????????????????????????????????????????　??????Java EE??????????????????Oracle ADF???????????????????????.NET Framework?????????????????????·?????Oracle ADF????????????????????????????????????????????????????Oracle ADF??????????????????????????????????????Java EE 6?HTML5????????　Oracle ADF????????Java EE?????Java EE6??????????Web???????????????????HTML5??????????????????????????????·???????????????????????????????????????????????　???????????????????????????1????????????????????·???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????　???????Oracle ADF?????????????????????????????????????????????????????????????????????????????????Oracle ADF????????????·???????????????????????????????????Oracle ADF???Java EE?????????????????????????????????:?Oracle JDeveloper?Oracle ADF 11g?Release 2(11.1.2.x):????

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• SLOB: ?????????????

  - by katsumii

  Oracle DB????????????????????????????Introducing SLOB – The Silly Little Oracle Benchmark « Kevin Closson's Blog: Platforms, Databases and StorageSLOB supports testing Oracle logical read (SGA buffer gets) scalingSLOB supports testing physical random single-block reads (db file sequential read)SLOB supports testing random single block writes (DBWR flushing capacity)SLOB supports testing extreme REDO logging I/O????????????????Oracle?????????Swingbench ??????????IPC Semaphore?????C???????????????????Windows???????????Cygwin??????????????????????????????SwingbenchSwingbench can be used to demonstrate and test technologies such as Real Application Clusters, Online table rebuilds, Standby databases, Online backup and recovery etc.???????I/O?????????????????Oracle ORION DownloadsORION (Oracle I/O Calibration Tool) is a standalone tool for calibrating the I/O performance for storage systemsSLOB ??????????????????????????? 

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