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  • APress Deal of the Day 4/Dec/2010

    - by TATWORTH
    Todays Apress deal of the day at http://www.apress.com/info/dailydeal is for Crafting Digital Media. Full details at http://www.apress.com/book/view/1430218878 It covers software such as: Audacity Drupal GIMP While the book is aimed primary at the world of LAMP (Linux-Apache-MySQL-PHP), many of the packages are available for Windows. It is well worth today's bargain price of $10!

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  • Why is multithreading often preferred for improving performance?

    - by user1849534
    I have a question, it's about why programmers seems to love concurrency and multi-threaded programs in general. I'm considering 2 main approaches here: an async approach basically based on signals, or just an async approach as called by many papers and languages like the new C# 5.0 for example, and a "companion thread" that manages the policy of your pipeline a concurrent approach or multi-threading approach I will just say that I'm thinking about the hardware here and the worst case scenario, and I have tested this 2 paradigms myself, the async paradigm is a winner at the point that I don't get why people 90% of the time talk about multi-threading when they want to speed up things or make a good use of their resources. I have tested multi-threaded programs and async program on an old machine with an Intel quad-core that doesn't offer a memory controller inside the CPU, the memory is managed entirely by the motherboard, well in this case performances are horrible with a multi-threaded application, even a relatively low number of threads like 3-4-5 can be a problem, the application is unresponsive and is just slow and unpleasant. A good async approach is, on the other hand, probably not faster but it's not worst either, my application just waits for the result and doesn't hangs, it's responsive and there is a much better scaling going on. I have also discovered that a context change in the threading world it's not that cheap in real world scenario, it's in fact quite expensive especially when you have more than 2 threads that need to cycle and swap among each other to be computed. On modern CPUs the situation it's not really that different, the memory controller it's integrated but my point is that an x86 CPUs is basically a serial machine and the memory controller works the same way as with the old machine with an external memory controller on the motherboard. The context switch is still a relevant cost in my application and the fact that the memory controller it's integrated or that the newer CPU have more than 2 core it's not bargain for me. For what i have experienced the concurrent approach is good in theory but not that good in practice, with the memory model imposed by the hardware, it's hard to make a good use of this paradigm, also it introduces a lot of issues ranging from the use of my data structures to the join of multiple threads. Also both paradigms do not offer any security abut when the task or the job will be done in a certain point in time, making them really similar from a functional point of view. According to the X86 memory model, why the majority of people suggest to use concurrency with C++ and not just an async approach ? Also why not considering the worst case scenario of a computer where the context switch is probably more expensive than the computation itself ?

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  • Desktop Fun: Foggy Mornings Wallpaper Collection Series 2

    - by Asian Angel
    All is calm and quiet as the sun peeks over the horizon, lighting up the fog-filled world of nature surrounding you. Wander through these wonderful morning mists on your desktop with the second in our series of Foggy Mornings Wallpaper collections. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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  • Using a Keyword Tool

    In your bid to become a world class Online Marketing Entrepreneur, you will no doubt decide at some stage to use the powerful services of Google or another search engine. Central to your success with these services will be your ability to identify good words for your ad campaigns.

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  • eSTEP Newsletter October 2012 now available

    - by uwes
    Dear Partners,We would like to inform you that the October '12 issue of our Newsletter is now available.The issue contains information to the following topics:News from CorpOracle Announces Oracle Solaris 11.1 at Oracle OpenWorld; Oracle Announces Oracle Exadata X3 Database In-Memory Machine; Oracle Enterprise Manager 12c introduces New Tools and Programs for Partners; Oracle Unveils First Industry-Specific Engineered System - the Oracle Networks Applications Platform,;  Oracle Unveils Expanded Oracle Cloud Offerings; Oracle Outlines Plans to Make the Future Java During JavaOne 2012 Strategy Keynote; Some interesting Java Facts and Figures; Oracle Announces MySQL 5.6 Release Candidate Technical Section What's up with LDoms (4 tech articles); Oracle SPARC T4 Systems cut Complexity, cost of Cryptographic Tasks; PeopleSoft Enterprise Financials 9.1; PeopleSoft HCM 9.1 combined online and batch benchmark,; Product Update Bulletin Oracle Solaris Cluster Oct 2012; Sun ZFS Storage 7420; SPARC Product Line Update; SPARC M-series -  New DAT 160 plus EOL of M3000 series; SPARC SuperCluster and SPARC T4 Servers Included in Enterprise Reference Architecture Sizing Tool; Oracle MagazineLearning & EventsRecently delivered Techcasts: An Update after the Oracle Open World, An Update on OVM Server for SPARC; Update to Oracle Database ApplianceReferencesBridgestone Aircraft Tire Reduces Required Disk Capacity by 50% with Virtualized Storage Solution; Fiat Group Automobiles Aligns Operational Decisions with Strategy by Using End-to-End Enterprise Performance Management System; Birkbeck, University of London Develops World-Class Computer Science Facilities While Reducing Costs with Ultrareliable and Scalable Data Infrastructure How toIntroducing Oracle System Assistant; How to Prepare a ZFS Storage Appliance to Serve as a Storage Device; Migrating Oracle Solaris 8 P2V with Oracle Database 10.2 and ASM; White paper on Best Practices for Building a Virtualized SPARC Computing Environment, How to extend the Oracle Solaris Studio IDE with NetBeans Plug-Ins; How I simplified Oracle Database 11g Installation on Oracle Linux 6You find the Newsletter on our portal under eSTEP News ---> Latest Newsletter. You will need to provide your email address and the pin below to get access. Link to the portal is shown below.URL: http://launch.oracle.com/PIN: eSTEP_2011Previous published Newsletters can be found under the Archived Newsletters section and more useful information under the Events, Download and Links tab. Feel free to explore and any feedback is appreciated to help us improve the service and information we deliver.Thanks and best regards,Partner HW Enablement EMEA

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  • What is Rainbow (not the CMS)

    - by Jeremy Thompson
    I was reading this excellent blog article regarding speeding up the badge page and in the last comment the author @waffles (a.k.a Sam Saffron) mentions these tools: dapper and a bunch of custom helpers like rainbow, sql builder etc Dapper and sql builder was easy to look up but rainbow keeps pointing me to a CMS, can someone please point me to the real source? Thanks. Obviously the architecture of these [SE] sites is uber cool and ultra fast so no comments on that thanks.

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  • Sprite Animation Toolkits for iPhone

    - by Mike Eggleston
    Does anyone know of any good (and preferably free) Sprite Animation Toolkits/Libraries for iOS development? This library should be able to handle the collision detection and the movement of the sprites. Back in the 90's there was a Pascal library called Sprite Animation Toolkit by Ingemar Ragnemalm that handled a lot of the heft to create animations and the such. I am just wondering if there is anything like that in the iOS world?

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  • Which is preferable? To know jQuery well, or to know JavaScript well? [closed]

    - by Marwan
    I'm quite familiar with using jQuery, but I've come to feel like a bit of a dummy using it, as my knowledge of JavaScript itself is rather poor. So I'm considering abandoning jQuery and spending time working in straight JS... perhaps even creating my own framework as a learning experience. Does this make sense though? Is there any real point to obtaining more than a passing knowledge of JavaScript when jQuery allows me to accomplish so much, so quickly?

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  • Metaobject protocol:Why is it known as an important concept

    - by sushant
    Metaobject protocol is protocol for metaobjects in a programming languages. Although I understand it on simple terms, I want to know the reason and a summary of real world usage patterns of this protocol. So, why exactly is metaobject and more importantly metaobject protocol is such a good idea. I want to know the problem which led to its evolution and also, its high power usage. Opinions as well as general overview/description/alternate explanations are also welcome.

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  • Javascript - is this a grey area for anyone else?

    - by Anonymous -
    I have a firm understanding of HTML, CSS, PHP, MySQL (and to some extent apache/linux) and find that one of the things missing from my 'web development knowledge base' is javascript - creating richer user interfaces. I'd like to learn Javascript before I look at any frameworks (I've used light javascript/jquery before, but that's besides the point). Can anyone recommend a firm book or online documentation from 'absolute beginner' to 'expert' for javascript? I seem to be finding too many 'display the time' and 'hello world' tutorials...

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  • Desktop Fun: Foggy Mornings Wallpaper Collection

    - by Asian Angel
    Foggy mornings are special times where everything is wrapped in a quiet calmness while the world is slowly waking up. Bring the peace and beauty of those early mornings to your desktop with our Foggy Mornings Wallpaper collection. Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive Follow How-To Geek on Google+

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  • Can other domain registrars view non-public whois information?

    - by user3188544
    If my domains are hosted at a registrar (lets take Gandi, for example) and it has privacy protection on the whois information, can another ICANN-accredited registrar (GoDaddy, for example) still view my actual information that is behind the privacy guard? i.e. I don't have a GoDaddy account. But, since they are ICANN-accredited, could they access the real whois info without the privacy protection?

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  • Are UML class diagrams adequated to design javascript systems?

    - by Vandell
    Given that UML is oriented towards a more classic approach to object orientation, is it still usable in a reliable way to design javascript systems? One specific problem that I can see is that class diagrams are, in fact, a structural view of the system, and javascript is more behaviour driven, how can you deal with it? Please, keep in mind that I'm not talking abot the real world domain here, It's a model for the solution that I'm trying to achieve.

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  • New Whitepaper from SQLBI: Vertipaq vs ColumnStore

    - by AlbertoFerrari
    At the end of June 2012, I was in Amsterdam to present some sessions at Teched Europe 2012 and, while preparing the material for the demos (yes, the best demos are the ones I prepare at the last minute), I decided to make a comparison between the two implementations of xVelocity of SQL 2012, one is the VertiPaq engine in SSAS Tabular and the other one is the ColumnStore index in SQL Server. After some trials, I decided that ColumnStore was a clear loser, because I was not able to see a real improvement...(read more)

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  • SQLbits London 2012 - Demos

    - by Adam Machanic
    Thanks to everyone who attended my sessions last Friday and Saturday at SQLbits! It was great to meet many new people, not to mention spending some time exploring one of my favorite cities, London. Attached are the demos for each of the two talks I delivered: Query Tuning Mastery: The Art of and Science of Manhandling Parallelism As a database developer, your job boils down to one word: performance. And in today's multi-core-driven world, query performance is very much determined by how well you're...(read more)

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  • What is the canonical resource on multi-tenancy web applications using ruby + rails

    - by AlexC
    What is the canonical resource on multi-tenancy web applications using ruby + rails. There are a number of ways to develop rails apps using cloud capabilities with real elastic properties but there seems to be a lack of clarity with how to achieve multitenancy, specifically at the model / data level. Is there a canonical resource on options to developing multitenancy rails applications with the required characteristics of data seperation, security, concurrency and contention required by an enterprise level cloud application.

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  • Managing Regulated Content in WebCenter: USDM and Oracle Offer a New Part 11 Compliant Solution for Life Sciences

    - by Michael Snow
    Guest post today provided by Oracle partner, USDM  Regulated Content in WebCenterUSDM and Oracle offer a new Part 11 compliant solution for Life Sciences (White Paper) Life science customers now have the ability to take advantage of all of the benefits of Oracle’s WebCenter Content, a global leader in Enterprise Content Management.   For the past year, USDM has been developing best practice compliance solutions to meet regulated content management requirements for 21 CFR Part 11 in WebCenter Content. USDM has been an expert in ECM for life sciences since 1999 and in 2011, certified that WebCenter was a 21CFR Part 11 compliant content management platform (White Paper).  In addition, USDM has built Validation Accelerators Packs for WebCenter to enable life science organizations to quickly and cost effectively validate this world class solution.With the Part 11 certification, Oracle’s WebCenter now provides regulated life science organizations  the ability to manage REGULATORY content in WebCenter, as well as the ability to take advantage of ALL of the additional functionality of WebCenter, including  a complete, open, and integrated portfolio of portal, web experience management, content management and social networking technology.  Here are a few screen shot examples of Part 11 functionality included in the product: E-Sign, E-Sign Rendor, Meta Data History, Audit Trail Report, and Access Reporting. Gone are the days that life science companies have to spend millions of dollars a year to implement, maintain, and validate ECM systems that no longer meet the ever changing business and regulatory requirements.  Life science companies now have the ability to use WebCenter Content, an ECM system with a substantially lower cost of ownership and unsurpassed functionality.Oracle has been #1 in life sciences because of their ability to develop cost effective, easy-to-use, scalable solutions which help increase insight and efficiency to drive growth for their customers.  Adding a world class ECM solution to this product portfolio allows life science organizations the chance to get rid of costly ECM systems that no longer meet their needs and use WebCenter, part of the Oracle Fusion Technology stack, with their other leading enterprise applications.USDM provides:•    Expertise in Life Science ECM Business Processes•    Prebuilt Life Science Configuration in WebCenter •    Validation Accelerator Packs for WebCenterUSDM is very proud to support Oracle’s expanding commitment to Life Sciences…. For more information please contact:  [email protected] Oracle will be exhibiting at DIA 2012 in Philadelphia on June 25-27. Stop by our booth (#2825) to learn more about the advantages of a centralized ECM strategy and see the Oracle WebCenter Content solution, our 21 CFR Part 11 compliant content management platform.

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  • Geo for Good Summit Highlights

    Geo for Good Summit Highlights The last week of September, Google hosted the Geo for Good User Summit, for nonprofit mapping and technology specialists to update the nonprofit community about new and special features of Google's mapping products. In this week's Maps Developers Live event, Mano Marks from Maps Developer Relations and Raleigh Seamster, Program Manager with the Google Earth Outreach team will talk about the highlights of the Summit and show off some great examples of people using Maps to help the world. From: GoogleDevelopers Views: 0 0 ratings Time: 00:00 More in Education

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  • Need a host which supports OSQA

    - by Josip Gòdly Zirdum
    Hi i'm looking to install OSQA and see how it goes I have a great niche which I think may work real well, but till I get a large enough audience I'd like to use shared hosting then move up to a dedicated or vps hosting... Almost all hosts i've looked at don't support something OSQA needs I need relatively cheap shared hosting with cpanel. Any recommendations? It needs to support: Django Python markdown html5lib Python OpenId South

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  • WordPress SEO - The Best Free Themes

    As a blogging platform WordPress is already pretty competent at letting the search engines know about the new content you put up on your site, but there is always more you can do too improve traffic and help improve the monetization of your web real estate. Believing the best things in life are free I have been experimenting with the most popular free SEO themes to be found on the WordPress site and two themes in particular have proven themselves particularly effective.

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  • Flame : le smartphone sous Firefox OS de Mozilla disponible en précommande jusqu'au 10 juin prochain

    Flame : le smartphone sous Firefox OS de Mozilla disponible en précommande jusqu'au 10 juin prochain Mozilla propose en précommande Flame, son smartphone de milieu de gamme tournant sur Firefox OS, à 170 dollars l'unité soit un peu moins de 130 euros. Pour rappel, ce smartphone qui avait été présenté en début d'année à l'occasion du Mobile World Congress, est avant tout destiné aux développeurs pour leur permettre de tester leurs applications web. Pour leur permettre de se rapprocher de la configuration...

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