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• Reasons to use C++ ?

  - by RodH257

  I've read here and in other places that learning C++, C or other low level languages are a must to get a more low level perspective on development. I agree with this, but I find it hard to find a reason to use C++ over C# or similar languages. Most of the work I do is web based, so there's no need for C++ there. Other work is windows based, and most things work fine in C# there, so what sort of situation could I use C++? I don't do any high performance stuff, nor do I create games, mostly business applications. I'm looking for an excuse to expand on my C++ knowledge but I need some motivation other than 'because the internet said I should'.

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• 2-components color model

  - by Cyan

  RGB is the natural color model for OpenGL. But a lot of other color models exist. For example, CMY(K) for printers, YUV for JPEG, the little cousins YCbCr and YCoCg, HSL & HSV from the 70's, and so on. All these models tend to share a common property : they are based on 3 components. Therefore my question is : Does it exist a 2-components color model ? I'm surprised to not find any. I was expecting something along the line of Hue+light could exist. I guess it cannot be as "complete" as a true 3-components color model, but a fine-enough approximation will be good for my usecase. The end objective is to store the 2 components into a single BC5 texture (GL_COMPRESSED_RED_GREEN_RGTC2 in OpenGL). The 3rd component requires a second fetch into a second texture, which hurts performance.

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• S&OP best practices that can help your organization be more responsive and effective

  - by user717691

  If you want to increase revenue by quickly responding to market changes or want to ensure that your operating plans drive towards corporate financial goals, you need real-time sales and operations planning.Watch the replay of our recent Webcast to hear Christopher Neff from NCR Corporation discuss how NCR Corporation is leveraging Oracle's Real-Time Sales and Operations Planning solutions. Learn best practices that can help your organization be more responsive and effective. Discover how Oracle's comprehensive suite of best-in-class capabilities can: Synchronize plans and actions across the extended enterprise Maximize profits with the ability to sense, influence, and fulfill demand with industry leading demand management and real-time sales & operations Drive tactical decisions into operational planning and execution, while monitoring performance Profitably balance supply, demand, and budgets Move planning processes from periodic and reactive to real-time, iterative and proactive Register now for the on demand Webcast! http://www.oracle.com/webapps/dialogue/ns/dlgwelcome.jsp?p_ext=Y&p_dlg_id=8664804&src=6811174&Act=99NCR Corporation is a leader in Self Service Solution such as POS Solutions, Payment and Imaging Systems.

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• Announcement: Oracle SuperCluster T5-8

  - by uwes

  Oracle's Fastest Engineered System On 27th of June we are announcing Oracle SuperCluster T5-8, Oracle’s fastest engineered system. Combining powerful virtualization and unique Exadata and Exalogic optimizations, SuperCluster is optimized to run both database and enterprise applications, and is ideal for consolidation and private cloud. SuperCluster is a complete system integrating SPARC T5-8 servers, Exadata Storage Servers, ZFS Storage Appliance, InfiniBand network and software, delivering extreme performance, no single point of failure, and highest efficiency while reducing risks and costs. Leverage Oracle SuperCluster T5-8 for IBM and HP competitive displacements, upgrading existing data centers, or new customer deployments. Please read the Product Bulletin on Oracle HW TRC for more details. (If you are not registered on Oracle HW TRC, click here ... and follow the instructions..) For More Information Go To: Oracle SuperCluster T5-8 oracle.com OTN

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• Nevron .NET Vision 2010 Vol.1 SP9 released VS2010 support

  We are pleased to announce the release of the new service pack for Nevron .NET Vision 2010 Vol.1. The service pack introduces: - Support for Visual Studio 2010 - new installation for VS2010 is available for download - Update for all installation version Nevron .NET Vision for VS2005, VS2008 and VS2010 - Significant performance improvements in the Chart Sampled Series Nevron .NET Vision 2010 Vol.1 SP9 is now available for download: http://www.nevron.com/Downloads.Download.aspx To download the latest...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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• Do you use to third party companies to review your company's code?

  - by CodeToGlory

  I am looking to get the following - Basic code review to make sure they follow the guidelines imposed. Security code analysis to make sure there are no loopholes. No performance bottlenecks by doing a load test etc. We have lot of code coming in from third parties and is becoming laborious to manage code reviews and hence looking to see if others employ such practices. I understand that it may be a concern for some and would raise the question "Well, who is going to make sure the agency is doing their job right?" But basically I am just looking for a third party who can hold all vendor code to the same standards.

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• query in codeIgniter style

  - by troy

  I have below query: SET @sql = NULL ; SELECT GROUP_CONCAT( DISTINCT CONCAT( 'select latitude,longitude,max(serverTime) as serverTime,', deviceID, ' AS device from d', deviceID, '_gps' ) SEPARATOR ' UNION ALL ' ) INTO @sql FROM devices WHERE accountID =2; PREPARE stmt FROM @sql ; EXECUTE stmt; Can someone help me to write the above query in codeIgniter style.... ANd another thing is :What is the difference between writing the query in 1 and 2 formats 1. $query = $this->db->query('YOUR QUERY HERE'); 2. $this->db->select("..."); $this->db->from(); $this->db->where(); Will it have any effect on performance if we use 2nd style... Thank You

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• What's the difference between a "Release" Xbox 360 build and a "Debug" one?

  - by Sebastian Gray

  I've got a build of my game that works on Windows under a release and debug build as expected. When I deploy the debug version of the game to the Xbox, it works as expected and runs the same as on Windows - however when I deploy the release version to the XBOX I get different behaviour within the game. I'm using a 3rd party library for the collisions (which is where I am seeing differences between the release and debug versions of my game); so I can't see what's actually different but I suspect they have some compiler directive for Debug on the Xbox to the Release version on the Xbox. As such, I'm thinking that I may need to release my game with the Debug build instead of the Release build but I want to know what issues I can expect by doing so? Are there any significant performance issues between the two build profiles?

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• High Tech Product Companies: Benchmark Your Sales & Marketing Data Management

  - by user709269

  Aberdeen’s Q4 2010 Quarterly Business Review found that 74% of the Sales and Marketing organizations in High Tech product manufacturing have strategic CRM initiatives in 2011. Aberdeen Group is conducting a survey that will help high tech product companies such as yours determine the Best-in-Class procedures for capturing, managing, and disseminating business data. If your product company is planning on implementing a CRM solution or is simply evaluating the potential benefits, we would appreciate your feedback in this brief, 10-minute survey. You will be able to compare your experiences in leveraging customer information for sales and marketing compare with your peers, benchmark your performance, and see how you can achieve Best-in-Class results. Individual responses will be kept strictly confidential, and data will only be used in aggregate. In appreciation for sharing your time and thoughts with us, we will provide complimentary access for you to the full benchmark report as soon as it is published (a $399 value). Take the survey.

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• Share buttons vs sharer urls

  - by TeeOh

  As some people might know, adding share buttons from Facebook and Twitter can cause a page to slow down. I've seen many sites pass on the common iframe implementations that these sites offer and simply create icons that link to a sharer url for better control of page performance. http://www.facebook.com/sharer/sharer.php?u=http%3A%2F%2Fwww.cnn.com%2F&t=CNN%26s+website%27 However, I've also read that Facebook is dropping support for these links. For example, this link now redirects to the Like Button. http://www.facebook.com/facebook-widgets/share.php Here is an article noting that Facebook is deprecating/has deprecated it's share functionality and is sticking with the Like button. http://www.barbariangroup.com/posts/7544-the_facebook_share_button_has_been_deprecated_called_it I'm assuming this is the same for the sharing url. If the sharer url is no longer a reliable option, what other methods are there besides using 3rd party widgets (like Addthis)?

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• GNOME 3.8 stutters / lags

  - by Robin

  I recently installed Fedora 19 beta and noticed unusually laggy behaviour of GNOME Shell (3.8) on the Nouveau driver on a nVidia 9200GS (also with nVidia driver) So I thought this could be related to Fedora so I installed Ubuntu 13.04 which comes with GNOME 3.6. Everything was buttery smooth as it has always been, but once I upgraded GNOME to 3.8, I experience the same laggy performance on Ubuntu as well. I'm talking about the animations, such as the window overview in activities, openSUSE live image with 3.6 = smooth Ubuntu 13.04 live image with 3.6 = smooth Ubuntu 13.04 install with 3.6 = smooth Ubuntu 13.04 install with 3.8 = laggy Fedora live image with 3.8 = laggy Fedora install with 3.8 = laggy Does anyone have a clue what could be going on?

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• Upgrading a dual-boot system HDD

  - by Jason

  I dual-boot my laptop due to lousy VM performance, and have a new 500GB/7200rpm drive coming in to replace the stock 320GB/5400rpm drive. I have the drive set up in three partitions: one for the Win7 system files, one for storage, and the third as the ext4 Linux file system. The system file and storage partitions are both NTFS. What I'm planning to do is use the system image creator built in Win7, then move that over to the new drive. However, how can I migrate the Ubuntu partition, and how do I make sure that the Grub bootloader isn't overwritten by the Windows loader?

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• READ_ME_FIRST: What Do I Do All of Those SPARC Threads?

  - by user12608550

  New Oracle Technical White Paper: READ_ME_FIRST: What Do I Do All of Those SPARC Threads? Executive Overview With an amazing 1,536 threads in an Oracle M5-32 system, the number of threads in a single system has never been so high. This offers a tremendous processing capacity, but one may wonder how to make optimal use of all these resources. In this technical white paper, we explain how the heavily threaded Oracle T5 and M5 servers can be deployed to efficiently consolidate and manage workloads using virtualization through Oracle Solaris Zones, Oracle VM Server for SPARC, and Oracle Enterprise Manager Ops Center, as well as how to improve the performance of a single application through multi-threading. READ_ME_FIRST: What Do I Do All of Those SPARC Threads?

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• A Great Idea I Never Had. Better Elevator Automation, no Buttons in Elevator.

  After my second year at engineering school (Cornell University), I spent the summer working in a dream job as an intern at the world famous Ford Design Center in Dearborn Michigan.  The group I... This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...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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• Database Insider - June 2014 issue now available

  - by Javier Puerta

  The June issue of the Database Insider newsletter is now available. (Full newsletter here) NEWS June 10: Oracle CEO Larry Ellison Live on the Future of Database Performance At a live webcast on June 10 at Oracle’s headquarters, Oracle CEO Larry Ellison is expected to announce the upcoming availability of Oracle Database In-Memory, which dramatically accelerates business decision-making by processing analytical queries in memory without requiring any changes to existing applications.Read More New Study Confirms Capital Expenditure Savings with Oracle Multitenant A new study finds that Oracle Multitenant, an option of Oracle Database 12c, drives significant savings in capital expenditures by enabling the consolidation of a large number of databases on the same number or fewer hardware resources.  Read More Read full newsletter here

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• Just Finished My Presentation at SLO! (Central Coast Code Camp At Cal Poly)

  I love code camps!  This is my first time to San Luis Obispos Central Coast Code Camp and Im really enjoying it.  It started last night with the presenters dinner at a great local steak... This site is a resource for asp.net web programming. It has examples by Peter Kellner of techniques for high performance programming...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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• Enhancing Enterprise Planning and Forecasting Through Predictive Modeling

  Planning and forecasting performance in today's volatile economic environment can be challenging with traditional planning applications and manual modeling techniques. To address these challenges, leading edge companies are leveraging predictive modeling to bring statistical analysis and techniques such as Monte Carlo simulations into the mix. Sound too math-intense and complicated? Not anymore. These techniques can be applied by anyone - no prior stats experience required - whether to augment the forecasting performed by line managers or to validate those forecasts based on historical information, and to produce a broader range of scenarios to consider in decision-making.

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• Are my other partitions safe from harm from an alpha/beta release?

  - by Marcappuccino

  I am quite intrested in testing the latest alpha-3 of Ubuntu, however, performance in VirtualBox is slow and somewhat buggy (I know! It's an Alpha) - guest additions wern't installing, bad mouse intergration, etc. I would now like to test this release on my hard drive. But my main system (12.04) is also on this very same hard drive. Is this safe? Can the alpha touch my main partition? Are there any other risks?

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• Chemical alternatives to caffeine / coffee for mental clarity and alertness? [on hold]

  - by einsteinx2

  Currently I drink about 2 cups of coffee or tea a day (one in the morning and one in the afternoon usually). However I'm very sensitive to stimulants and drinking caffeine regularly keeps my resting heart rate really high, causes occasional heart palpitations, and sometimes trouble sleeping. I've tried going without coffee, and while I can do it, I have trouble concentrating at work and even just enjoying my work. I'm borderline ADD (or possibly full on ADD, but haven't been checked). And I tend to lose focus easily if I don't have some coffee or tea in me. For health reasons, I'd like to cut it out completely, but when I do my work performance seriously suffers. I already work out (cardio and/or weight lifting) 5 - 6 days a week, and get an average of about 8 hours of sleep, but I still can't focus throughout the day without caffeine. Are there any over the counter chemical or supplement alternatives for mental clarity that you've used with success don't cause the additional unwanted physical side effects that come with regular stimulants like caffeine?

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• How often should saving to disk occur in an automatically saving text editor?

  - by lelandmiller

  I am developing a simple text editor and would like the application to save the text automatically. In other words, the user would never have to press a save button. I have seen other applications that do this, and was wondering how often is it safe to write files to disk? From a user experience standpoint, it seems that the more frequently this happens the better, but I am worried about performance and possible disk wear (especially on writes to SSDs). It seems like the operating system disk caching might help avoid these problems, but I also don't know if its safe to rely on that for an application like this. I was planning on writing the whole document to disk at each save, but this just seems terribly inefficient if the OS ends up writing it to disk to frequently, but relying on program unload may lose data in the case of a crash. Does anyone have any experience dealing with this that might be able to help?

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• HDMI signal interrputs after 10 minutes plugged in a TV

  - by desert_unbound

  Ubuntu 11.10, Dell Inspiron N4050, VLC, Jupiter I'm trying to watch movies through HDMI output on a TV, with VLC, with the notebook unplugged from AC (but with enough battery for 2-3 hours of use), just with TV display (the notebook display stays off) And from 10 to 10 minutes, the TV turns black, and according to the TV, the HDMI cable is unplugged. But using the touchpad makes the screen appear again. In "screen" options, on system settings, i've set the screen to never turn off, and never reduce brightness using battery. In "power" settings, i've set to not suspend when using battery. In Jupiter, i've set (while trying to watch the movie) to work in maximum performance. I'm pretty sure it's not VLC, because i've set it to override power options and screensaver options (and also im not using xscreensaver). Also the movie continues, when the screen is black Maybe there's something that i'm missing? When i plug the HDMI in the notebook, i use jupiter to change the display (using the option "external display only")... maybe is that ?

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• Rendering only a part of the screen in high detail

  - by Bart van Heukelom

  If graphics are rendered for a large viewing angle (e.g. a very large TV or a VR headset), the viewer can't actually focus on the entire image, just a part of it. (Actually, this is the case for regular sized screens as well.) Combined with a way to track the viewer's eyes, you could theoretically exploit this and render the graphics away from the viewer's focus with progressively less details and resolution, gaining performance, without losing perceived quality. Are there any techniques for this available or under development today?

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• SAP ouvre sa plateforme In Memory aux Startups et organise une série d'événements pour construire un écosystème autour d'HANA

  SAP ouvre sa plateforme In Memory aux Startups et organise une série d'événements pour construire un écosystème fiable autour d'HANA SAP organise une série d'événements pour aider les développeurs et startups qui utilisent la plateforme In Memory HANA à tirer parti de celle-ci. SAP HANA (High-Performance Analytic Appliance) permet de produire des environnements de Data Warehouse dopés, qui fournissent des données clients en temps réel. Elle permet également d'animer un réseau en ligne et offre une plateforme ouverte aux développeurs. La société souhaite qu'un écosystème fiable soit construit autour de sa plateforme grâce à son programme de soutien aux startups du monde en...

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• Architecture for dashbaord showing aggregated stats

  - by soulnafein

  I'm trying to find the best architecture for an application that shows a dashboard with aggregated stats that come from another one (e.g. number of sales in the last 12 months, current sales this month, a fairly complex score, performance of users over last 30 days, etc.) There is a fair bit of business logic that lives in Application 1 but the aggregated data gets saved in Application 2 (dashboard). What's the best way to create the aggregate data? 1) Pull data directly from Application 1 database and duplicate business logic for score calculation etc. 2) Push data from Application 1 to Application 2 somehow 3) Aggregate data in Application 1 on the fly and provide and api for Application 2 4) Other (probably) Please suggest solutions, Thanks.

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• How can I support scrolling when using batched rendering for my tiles?

  - by dardanel

  I have tiled map 100*75 and tiles are 32*32 pixel.I want to use batching for performance .I don't figure it out , because of my game needs scrolling and every frame i draw 22*16 tiles (my screen is 20*16 tile) .I thought that batching tiles for every frame .Is it good or any suggestion? edit :to more clarify I want to use occlusion culling and batching at the same time.I thought that drawing only visible areas and batching them together .But there is a something i couldn't figure out .When scrolling screen with translate matrix , if one row become invisible , I bind new row and batch them again.Every batched objects needs to buffer again.So I batch tiles and buffer to VBO every time when one row become invisible .I don't know these way is efficient or not .This is my question .And i am open to any suggestions.

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