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  • Apress Deal of the Day - 13/Feb/2010 - Pro Hyper–V

    - by TATWORTH
    Today's Apresss $10 Deal of the Day at http://www.apress.com/info/dailydeal is In Pro Hyper–V, author Harley Stagner takes a comprehensive approach to acquiring, deploying, using, and troubleshooting Microsoft’s answer to virtualization on the Windows Server platform. Learn from a true virtualization guru all you need to know about deploying virtual machines, managing your library of VMs in your enterprise, recovering gracefully from failure scenarios, and migrating existing physical machines to virtual hardware.

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  • How can I keep current with Python coding style?

    - by vartec
    I've been using Python since version 2.2. I do pick up new language constructs like for example with statement or dictionary/set comprehensions. However, I've realized that even though I'm being consistent with PEP-8, for existing constructs I'm using old style, rather than new style (for example except Exception, e instead of except Exception as e). Is there a resource which would have either most current style guide, or even better a list of changes in Python's coding style?

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  • How to wrap console utils in webserver

    - by Alex Brown
    I have a big dataset (100Mbs/day) and a bunch of console a TCL/TK tools to view it - I want to turn it into a web app that I can build, and others can maintain. In long: my group runs simulations yielding 100s of Mbs of data daily, in multiple (mostly but not only) text forms. We have a bunch of scripts and tools, mostly old school 1990's style stuff requiring a 5-button mouse, as well as lots of ad-hoc scripts that engineers build out of frustration every month or so. These produces UIs, graphs, spreadsheets (various sizes), logs, event histories etc. I want to replace (or at least supplement) the xwindows / console style UI with a web-based one, so I need the following properties: pleasant to program can wrap existing command-line tools in separate views (I don't need to scrape GUIs or anything) as I port logic from the existing scripts I can create a modularised and pleasant codebase to replace it I can attach a web-ui to navigate between views - each view is likely to contain keys which might make sense to view in another I am new to building systems that have logic on the back-end and front-end of a web-server. from that point of view, they do this: backend wraps old-school executables, constructs calls into them and them takes the output and wraps it up, niceifies it and delivers it to the web client. For instance the tool might generate a number of indexed images (per invocation) which I might deliver all at once or on-demand. May (probably) need to to heavy stats on some sources. frontend provides navigation connecting multiple views, performs requests from one view for data from another (or self to self), etc. Probably will have some views with a lot of interactivity. Can people please point me towards viable solutions for this? I know it's a bit of an open question so as answers come in I hope to refine the spec until we have a good match. I guess I expect to see answers like "RoR!" "beans!" "Scala!" but please give an indication of why those are a good fit; I know nothing! I got bumped off SO for asking an open-ended question, so sorry if its OT here too (let me know). I take the policy that I use the best/closest matched language for a project but most of my team are extremely low level (ie pipeline stages and CDyn) so I don't have the peer group to know where to start.

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  • Download Irony .NET Compiler Construction Kit

    - by Editor
    Irony is a new-generation .NET compiler construction kit. It utilizes the full potential of c# 2.0 and .NET Framework to implement a completely new and streamlined technology of compiler construction. Unlike most existing yacc/lex-style solutions Irony does not employ any scanner or parser code generation from grammar specifications written in a specialized [...]

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  • Tools for creating assets? [closed]

    - by Agent_9191
    There are similar questions about finding existing resources that are free for use (free sprites/images, music, sound), but I'm interested in creating the resources myself. What tools do you use for asset creation/modification? Please only put one tool per answer. Also try to include the following information: Product Name Link to website Type of assets is can create (2D images, 3D images, audio, etc) OS(s) supported Cost License (if free/open source) General summary

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  • SQL Server v.Next (Denali) : Breaking change to fn_virtualfilestats

    - by AaronBertrand
    Yesterday I posted a general warning about changes to Denali that will potentially break your existing code base, with a strong suggestion to grab the summer CTP as soon as it is available and start testing. I posted an example of a breaking change that will not be documented since it affects a commonly-used but undocumented DBCC command (DBCC LOGINFO), and also mentioned a couple of other changes in passing (). Today it occurred to me that it may be more useful if, when I come across a potential...(read more)

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  • Install Ubuntu or Kubuntu on a External USB Drive

    - by rihatum
    Hi All, I have a few external hard drives (SSDs and Platters (SATA), is this possible that I can install Kubuntu 10.10 x64 or Ubuntu 10.10 x64 onto one of these external hard drives? My System supports booting off a usb, it will just give me a learning playground without spoiling my existing operating environment. I know I can install as Virtual machines, but installing U/Kubuntu on a External HDD and booting off it would be easier. Will be grateful for your insights....and steps to do so. Thanks

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  • Nester

    - by csharp-source.net
    Nester is a tool for mutation testing of your C# source code in order to assess the adequacy of your unit tests. It involves modification of programs to see if existing tests can distinguish the original program from the modified program.

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  • WebCenter Customer Spotlight: Hitachi Data Systems

    - by me
    Author: Peter Reiser - Social Business Evangelist, Oracle WebCenter Watch this Webcast to see a live demo on how HDS creates multilingual content for their 35+ regional websites  Solution SummaryHitachi Data Systems (HDS) provides mid-range and high-end storage systems, software and services. It is a wholly owned subsidiary of Hitachi Ltd. HDS is based in Santa Clara, California, and has over 5,300 employees in more then 100 countries and regions. HDS's main objectives were to provide a consistent message across all their sites, to maintain a tight governance structure across their messages and related content, expand the use of the existing content management systems and implement a centralized translation management system. HDS implemented a global web content management system based on Oracle WebCenter Content and integrated the Lingotek translation management system to manage their multilingual content. The implemented solution provides each Geo with the ability to expand their web offering to meet local market needs, while staying aligned with the Corporate Web Guidelines Company OverviewHitachi Data Systems (HDS) provides mid-range and high-end storage systems, software and services. It is a wholly owned subsidiary of Hitachi Ltd. and part of the Hitachi Information Systems & Telecommunications Division. The company sells through direct and indirect channels in more than 170 countries and regions. Its customers include of 50 percent of the Fortune 100 companies. HDS is based in Santa Clara California and has over 5,300 employees in more than 100 countries and regions. Business ChallengesHDS has over 35 global websites and the lack of global web capabilities led to inconsistency of messaging, slower time to market and failed to address local language needs. There was an extensive operational overhead due to manual and redundant processes. Translation efforts where superficial, inconsistent and wasteful and the lack of translation automation tools discouraged localization.  HDS's main objectives were to provide a consistent message across all their sites, to maintain a tight governance structure across their messages and related content, expand the use of the existing content management systems and implement a centralized translation management system. Solution DeployedHDS implemented a global web content management system based on Oracle WebCenter Content. The solution supports decentralized publishing for their 35+ global sites to address local market needs while ensuring editorial and brand review trough embedded review processes. They integrated the Lingotek translation management system into Oracle WebCenter Content to manage their multilingual content. Business Results Provides each Geo with the ability to expand their web offering to meet local market needs, while staying aligned with the Corporate Web Guidelines Enables end-to-end content lifecycle management across multiple languages Leverage translation memory for reuse and consistency Reduce time to market with central repository of translated content Additional Information HDS Webcast Oracle WebCenter Content Lingotek website

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  • OBIEE 11.1.1.5.0 Bundle Patch 2 is available

    - by mshahi
    Oracle BI EE 11.1.1.5.0 Bundle Patch 2 is available. The Patch number is 13611078 and it can be downloaded from Oracle Support (you can download it without password). This patch currently is available on Microsoft Windows x64 (64 bit), Linux x86 - 64 bit, IBM AIX on Power System (64 bit) and Oracle Solaris Sparc (64 bit). Remaining four platforms Win32, Linux32, HP-Itanium, and Solaris x86-64 are expected 3-4 weeks later. This Patch has thoroughly been tested and signed off by BI QA Team.  Important things to know: 1. All the customers are advised to apply this patch as it contains around 248 bug fixes. Please read the README file for all the bug fixes contained in this patch.   2. This patch can be applied via opatch. Please follow the standard process of applying this patch using opatch, i.e. stop all BI System processes via opmnctl, Stop WLS Managed and Admin Servers, Apply Patch, Start WLS Admin and Managed Servers, Check if all the J2EE applications are running fine, Start all BI System Processes via opmnctl command, and verify your fixes. It is advised to test this patch on Non Productions Instances first, run all the required tests / regressions and then move it to Production.    3. This Bundle Patch is cumulative to 11.1.1.5.0 BP1 (13562882) which was released in January 2012 on Linux x86 - 64 bit which contained around 64 bug fixes. Customers who have applied 11.1.1.5.0 BP1, will get expected OPatch conflict message, they can safely roll back BP1 prior to installing this BP2 or let opatch roll back BP1 during its application process.   4. Customer who have applied some one off patches and these one off patches are also part of 11.1.1.5.0 BP2, they can also roll back their existing one off patches after confirming that their fixes are part of BP2.    5. This Bundle Patch is not cumulative on top of 11.1.1.5.0, meaning this bundle patch does not contain all the one off fixes that were delivered on top of 11.1.1.5.0. All the remaining one off fixes delivered so far, will be available in next scheduled bundle patch i.e. 11.1.1.5.0 BP3. Please check the README file and let support know if your existing fixes are not part of BP2, so that support can open One Off Backport (OOB) request to have them included in next patch i.e. BP3.   6. 11.1.1.5.0 BP3 is in planning stages, and dates for it's availability will be announced in next couple of weeks.

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  • How similar are programming and architecture?

    - by blueberryfields
    A friend of mine has completed an undergraduate program in architecture. Disillusioned with the industry and available work options, she is now looking to change careers, and become a professional software developer. What can she expect will be similar to her existing education, and will therefore be easy for her to pick up? What will be difficult? Does any of her experience so far transfer? Any other advice or information that she should know, before making the jump?

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  • How to suggest using an ORM instead of stored procedures?

    - by Wayne M
    I work at a company that only uses stored procedures for all data access, which makes it very annoying to keep our local databases in sync as every commit we have to run new procs. I have used some basic ORMs in the past and I find the experience much better and cleaner. I'd like to suggest to the development manager and rest of the team that we look into using an ORM Of some kind for future development (the rest of the team are only familiar with stored procedures and have never used anything else). The current architecture is .NET 3.5 written like .NET 1.1, with "god classes" that use a strange implementation of ActiveRecord and return untyped DataSets which are looped over in code-behind files - the classes work something like this: class Foo { public bool LoadFoo() { bool blnResult = false; if (this.FooID == 0) { throw new Exception("FooID must be set before calling this method."); } DataSet ds = // ... call to Sproc if (ds.Tables[0].Rows.Count > 0) { foo.FooName = ds.Tables[0].Rows[0]["FooName"].ToString(); // other properties set blnResult = true; } return blnResult; } } // Consumer Foo foo = new Foo(); foo.FooID = 1234; foo.LoadFoo(); // do stuff with foo... There is pretty much no application of any design patterns. There are no tests whatsoever (nobody else knows how to write unit tests, and testing is done through manually loading up the website and poking around). Looking through our database we have: 199 tables, 13 views, a whopping 926 stored procedures and 93 functions. About 30 or so tables are used for batch jobs or external things, the remainder are used in our core application. Is it even worth pursuing a different approach in this scenario? I'm talking about moving forward only since we aren't allowed to refactor the existing code since "it works" so we cannot change the existing classes to use an ORM, but I don't know how often we add brand new modules instead of adding to/fixing current modules so I'm not sure if an ORM is the right approach (too much invested in stored procedures and DataSets). If it is the right choice, how should I present the case for using one? Off the top of my head the only benefits I can think of is having cleaner code (although it might not be, since the current architecture isn't built with ORMs in mind so we would basically be jury-rigging ORMs on to future modules but the old ones would still be using the DataSets) and less hassle to have to remember what procedure scripts have been run and which need to be run, etc. but that's it, and I don't know how compelling an argument that would be. Maintainability is another concern but one that nobody except me seems to be concerned about.

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  • best way to "introduce" OOP/OOD to team of experienced C++ engineers

    - by DXM
    I am looking for an efficient way, that also doesn't come off as an insult, to introduce OOP concepts to existing team members? My teammates are not new to OO languages. We've been doing C++/C# for a long time so technology itself is familiar. However, I look around and without major infusion of effort (mostly in the form of code reviews), it seems what we are producing is C code that happens to be inside classes. There's almost no use of single responsibility principle, abstractions or attempts to minimize coupling, just to name a few. I've seen classes that don't have a constructor but get memset to 0 every time they are instantiated. But every time I bring up OOP, everyone always nods and makes it seem like they know exactly what I'm talking about. Knowing the concepts is good, but we (some more than others) seem to have very hard time applying them when it comes to delivering actual work. Code reviews have been very helpful but the problem with code reviews is that they only occur after the fact so to some it seems we end up rewriting (it's mostly refactoring, but still takes lots of time) code that was just written. Also code reviews only give feedback to an individual engineer, not the entire team. I am toying with the idea of doing a presentation (or a series) and try to bring up OOP again along with some examples of existing code that could've been written better and could be refactored. I could use some really old projects that no one owns anymore so at least that part shouldn't be a sensitive issue. However, will this work? As I said most people have done C++ for a long time so my guess is that a) they'll sit there thinking why I'm telling them stuff they already know or b) they might actually take it as an insult because I'm telling them they don't know how to do the job they've been doing for years if not decades. Is there another approach which would reach broader audience than a code review would, but at the same time wouldn't feel like a punishment lecture? I'm not a fresh kid out of college who has utopian ideals of perfectly designed code and I don't expect that from anyone. The reason I'm writing this is because I just did a review of a person who actually had decent high-level design on paper. However if you picture classes: A - B - C - D, in the code B, C and D all implement almost the same public interface and B/C have one liner functions so that top-most class A is doing absolutely all the work (down to memory management, string parsing, setup negotiations...) primarily in 4 mongo methods and, for all intents and purposes, calls almost directly into D. Update: I'm a tech lead(6 months in this role) and do have full support of the group manager. We are working on a very mature product and maintenance costs are definitely letting themselves be known.

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  • Visual Studio 2010 Launch Events

    - by Jim Duffy
    Don’t miss out on the opportunity to learn about the new features in Visual Studio 2010. Check out the MSDN Events page and find out when the talented folks of the Developer & Evangelism group will be visiting your city to prove to you that /*Life Runs On Code*/. I’ll be attending the Raleigh event June 2, 2010 from 1:00 - 5:00 PM. North Carolina State University, Jane S. McKimmon Conference Center 1101 Gorman St Raleigh North Carolina 27606 United States From the Raleigh Event page: Event Overview Learn about the rich application platforms that Microsoft® Visual Studio® 2010 supports, including Windows® 7, the Web, SharePoint®, Windows Azure™, SQL®, and Windows® Phone 7 Series. From tighter tester and dev collaboration to new ALM tools, there’s a lot that’s new. Here’s what you can expect: Windows Development with Visual Studio 2010 Visual Studio has always been the best way to build compelling visual solutions for Windows. Visual Studio 2010 continues this trend with great new tooling support for Silverlight 4, WPF, and native development. In this demo heavy session, you’ll see how you can build rich Windows applications with Silverlight 4 using new trusted application features including out-of-browser execution, saving to the file system, and even COM Automation. You’ll also see how you can use the new Task Parallel Library from within a WPF application to take advantage of all those cores in today’s modern computers. Web and Cloud Development with Visual Studio 2010 If you build solutions for the web, then this session is for you. Come see how your existing skills move forward with Visual Studio 2010 both for in-house ASP.NET development and the new frontier of the Cloud. In this session, you’ll see improved designers, new HTML and JavaScript snippets, Web Forms enhancements, and how you can quickly build great web sites using Dynamic Data. You’ll see the changes made to testable web sites with MVC 2.0 and how we’ve integrated JQuery support into the platform. You’ll then see how easy it is to leverage your existing code and move to the cloud with Windows Azure. Windows Phone 7 Developer Tools and Platform Overview This session provides an overview of Visual Studio® 2010 for Windows Phone. Learn about the powerful capabilities of this new application platform and the developer tools experience including basic IDE usage, debugging, packaging, and deployment. This session also shows how you can use Microsoft Expression® Blend™ for Windows Phone to build great Silverlight applications. Have a day. :-|

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  • ObjectBuilder

    - by csharp-source.net
    ObjectBuilder is a framework for building dependency injection systems, originally written by the Microsoft patterns and practices group. Using ObjectBuilder, it's possible to build DI containers that mimic a variety of existing containers.

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  • Revenue Recognition: Performance Obligation Pass a Hurdle

    - by Theresa Hickman
    I met up with Seamus Moran, our resident accounting expert, to get his thoughts about the latest happenings with IFRS. Last week, on March 13,  the comment period on the FASB and IASB exposure draft “Revenue From Contracts with Customers” closed.  FASB and IASB have just over 20 comment letters – a very small number.  The implication is that that the exposure draft does reflect general acceptance, and therefore will be published as both a US and Internationally Generally Accepted Accounting Standard. At a recent conference call, FASB and IASB expected to complete their report to both Boards on the comments by early summer, complete their deliberation of the comments by the fall and draft the final standard text by late this year. It is assumed the concept of Performance Obligations would become US GAAP and IFRS in place of the existing standards.  They confirmed that all existing US GAAP and IFRS guidelines would be withdrawn, and that they were in dialogue with the SEC on withdrawing the SEC guidelines on the revenue issue as well.The open question is when will Performance Obligations become effective?  The Boards have said that they would like this Revenue Recognition standard and the the Lease Accounting standard to be effective at the same time because what isn’t either insurance, interest, or a lease is a revenue arrangement.  However, ascertaining what is generally acceptable in respect of Leases is proving a little elusive, and the Boards have recently diverged a little on the P&L side of the accounting (although both are in agreement that there will be no off-balance sheet leases).  It is therefore likely that the Lease standard might be delayed. One wonders if the Boards will  define effectivity of the Revenue standard independently of the Lease standard or if they will stick with their resolve to make them co-effective.  The Boards have also said that neither standard will be effective before June 2015.Here is the gist of the new Revenue Recognition principle and the steps to apply it:Recognize revenue to depict the transfer of goods or services in an amount that reflects the consideration expected to be entitled in exchange for those goods and services.Steps to apply the core principles: Identify the contract with the customer Identify the separate performance obligations Determine the transaction price Allocate the the transaction price Recognize Revenue when a performance obligation is satisfied  

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  • Splitting a texture atlas into seperate images

    - by bigtunacan
    I'm doing a port of an existing game and the designer no longer has all of the original art; he only has the resulting texture atlases he used when developing for iPad. The tool I'm using won't support these files so I need to break them back out into separate PNG files. I'm hoping someone knows of a software tool that does this. PC software would be preferred in this case, but Mac would suffice.

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  • Code while standing

    - by bgbg
    I have a regular, standard, workplace: a desk, a chair an LCD monitor, a mouse and a keyboard. I would like to have the ability to work while standing. I have the feeling that my employer will not will to buy an adjustable desk, instead of the existing one, so I would like to have your help with ideas on how to convert a workplace to a "standable" one on as low budget as possible. I saw this discussion, but the solutions proposed there are way above my "low budget" definition

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  • Oracle Database In-Memory

    - by Mike.Hallett(at)Oracle-BI&EPM
    Normal 0 false false false EN-GB X-NONE X-NONE Larry Ellison unveiled the next major milestone in database technology, Oracle Database In-Memory, on June 10, 2014. Oracle Database In-Memory will be generally available in July 2014 and can be used with all hardware platforms on which Oracle Database 12c is supported. This option will accelerate database performance by orders of magnitude for analytics, data warehousing, and reporting while also speeding up online transaction processing (OLTP). It allows any existing Oracle Database-compatible application to automatically and transparently take advantage of columnar in-memory processing, without additional programming or application changes. Benefits Fast ad-hoc analytics without the need to pre-create indexes Completely transparent to existing applications Faster mixed workload OLTP No database size limit Industrial strength availability and security Robustness and maturity of Oracle Database 12c To find out more see Oracle Database In-Memory Comment from Rittman Mead on Oracle In-Memory Option Launch  ... and I will let you know how this unfolds in regards to advantages for OBI11g and Exalytics and Big Data over the coming months. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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  • 2D Animation Smoothness - Delta time vs. Kinematics

    - by viperld002
    I'm animating a sprite in 2D with key frames of rotation and xy-positions. I've recently had a discussion with someone saying that when the device (happens to be an iPad using cocos2D) hits a performance bump due to whatever else the user may be doing, lag will arise and that the best way to fight it is to not use actual positions, but velocities, accelerations and torques with kinematics. His message is to evaluate the positions and rotations from these speeds at the current point in time. I've never experienced a situation where I've heard of using kinematics to stem lag in 2D animations and am not sure of how effective it could be. Also, it seems to be overkill. The application is not networked so it's all running on a local device. The desired effect is that the animation always plays as closely as it can to the target frame rate. Wouldn't the technique suffer the same problems as just using the time since the last frame or a fixed time step since the kinematics would also require some time value to perform the calculation? What techniques could you suggest to best achieve the desired effect? EDIT 1 Thank you for your responses, they are very illuminating. I want to clarify my question before choosing an answer however, to make sure that this post really serves it's purpose. I have a sprite of a ball, and a text file with 3 arrays worth of information (rotation,translations x, translations y) with each unit of information existing as a key frame to be stepped through (0 to 49 and back to 0 to replay it again). I have this playing by interpolating from the current key frame to the next, every n-units of time. The animation is visibly correct when compared to a video I was given of it, and it is smooth because of the interpolations between the key frames. This is the existing state of the project. There are no physics simulated, only a static animation of a ball moving in a way an artist specifically designed. Should I, instead of rotation in degrees and translations by positions in space, derive velocities, accelerations and torques to express this static animation as a function of time? As in, position now = foo(time now), where foo uses kinematics.

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  • Exploring In-memory OLTP Engine (Hekaton) in SQL Server 2014 CTP1

    The continuing drop in the price of memory has made fast in-memory OLTP increasingly viable. SQL Server 2014 allows you to migrate the most-used tables in an existing database to memory-optimised 'Hekaton' technology, but how you balance between disk tables and in-memory tables for optimum performance requires judgement and experiment. What is this technology, and how can you exploit it? Rob Garrison explains.

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  • GUI for DirectX

    - by DeadMG
    I'm looking for a GUI library built on top of DirectX- preferably 9, but I can also do 11. I've looked at stuff like DXUT, but it's way too much for me- I'm only needing some UI controls which I would rather not write (and debug) myself, and their need to keep a C-compatible API is definitely a big downside. I'd rather look at UI libs that are designed to be integrated into an existing DirectX-based system, rather than forming the basis of a system. Any recommendations?

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  • Java heap space

    - by java_mouse
    In Java/JVM, why do we call the memory place where Java creates objects as "Heap"? Does it use the Heap Data Structure to create/remove/maintain the objects? As I read in the documentation of Heap data structure, the algorithm compares the objects with existing nodes and places them in such a way that Parent object is "greater" than the children. ( Or "lesser" in case of min heap). So in JVM, how are the objects compared against each other before placing them in the heap?

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