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  • Open XML SDK 2 Released

    - by Tim Murphy
    Note: Cross posted from Coding The Document. Permalink This post is a little late since the SDK was released about a week ago.  At PSC we have been using the Open XML SDK 2 since its earliest beta.  It is a very powerful tool for generating documents without using the Office DLLs.  It is also the main technology that I have been working with for the last six months.  I would suggest giving it a try.  Stay tuned here.  In the near future I will be presenting at different locations on this and other document generation technologies. Download the Open XML SDK here. del.icio.us Tags: Office Open XML,Open XML SDK 2

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  • Google I/O 2010 - Android UI design patterns

    Google I/O 2010 - Android UI design patterns Google I/O 2010 - Android UI design patterns Android 201 Chris Nesladek, German Bauer, Richard Fulcher, Christian Robertson, Jim Palmer In this session, the Android User Experience team will show the types of patterns you can use to build a great Android application. We'll cover things like how to use Interactive Titlebars, Quick Contacts, and Bottom bars as well some new patterns which will get an I/O-only preview. The team will be also available for a no holds barred Q&A session. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 6 0 ratings Time: 58:42 More in Science & Technology

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  • Oracle's HR Summit featuring Joyce Westerdahl is next week in Chicago!

    - by Jay Richey, HCM Product Marketing
    This special full day HR Summit will examine the future of work, and how shifting demographics, new talent pools, changing workforce practices, and evolving business models are impacting the HR landscape.   Joyce Westerdahl, Oracle Senior VP for HR, will share her HR strategies and insight as to how she created a flexible, global workforce that has supported the Oracle's ongoing transformation into an integrated technology solutions provider. Marcie van Houton, Fusion HCM Product Strategy Director, will delve into the innovative technologies that Oracle has developed to support all this change. And Sheryl Johnson, Director, Oracle Fusion HCM, PwC, will examine how high performing HR organizations are increasing their relevancy and value to the business, using organizational best practices and transformational technologies to drive real business results. Wednesday, December 7, 2011 11:00 a.m. – 4:15 p.m. JW Marriott Chicago 151 West Adams Street Chicago, Illinois 60603 www.oracle.com/us/dm/h2fy11/17109-nafm11032950mpp025-se-518477.html   

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  • Announcement Oracle Solaris 11.1 Availability!

    - by uwes
    On 25th of October Oracle announced the availability of Oracle Solaris 11.1. Highlights include: 8x faster database startup and shutdown and online resizing of the database SGA with a new optimized shared memory interface between the database and Oracle Solaris 11.1 Up to 20% throughput increases for Oracle Real Application Clusters by offloading lock management into the Oracle Solaris kernel Expanded support for Software Defined Networks (SDN) with Edge Virtual Bridging enhancements to maximize network resource utilization and manage bandwidth in cloud environments 4x faster Solaris Zone updates with parallel operations shorten maintenance windows New built-in memory predictor monitors application memory use and provides optimized memory page sizes and resource location to speed overall application performance. More information could be found under the following links: Oracle Solaris 11.1 Data Sheet  What's New in Oracle Solaris 11.1 Oracle Solaris 11.1 FAQs Oracle.com Oracle Solaris page Oracle Technology Network Oracle Solaris page Resources for downloading: Download Solaris 11.1 Order Solaris 11.1 media kit Existing customers can quickly and simply update using the network based repository

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  • Google I/O 2010 - OpenID-based SSO & OAuth for Google Apps

    Google I/O 2010 - OpenID-based SSO & OAuth for Google Apps Google I/O 2010 - OpenID-based single sign on and OAuth data access for Google Apps Enterprise, Google APIs 201 Ryan Boyd, David Primmer A discussion of all the auth tangles you've encountered so far -- OpenID, SSO, 2-Legged OAuth, 3-Legged OAuth, and Hybrid OAuth. We'll show you when and where to use the APIs, code some example apps, and demonstrate how they all integrate with Google APIs and other developer products. We'll also talk about how these technologies relate to apps sold on the Google Apps Marketplace. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 8 0 ratings Time: 01:11:01 More in Science & Technology

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  • Join us! Oracle Manufacturing Industries Forum, Chicago Thurs. Nov.14'13

    - by Stephen Slade
    The 6th Annual Oracle Manufacturing Industries Forum will take place in Chicago, Thurs, Nov.14 '13. Executives from successful global manufacturing companies will address key themes including: Value Chain Transformation, Owning the Customer Service Experience, Sales and Operations Planning in a Global Enterprise Supply Chain, and Modernizing the Manufacturing Enterprise. Join us for what we expect to be one of the industry's most informative and provocative executive events of the year. Event Objectives: Create an environment where executives can interact with their peers to discuss current issues Brainstorm and discuss how attendees can use technology to transform their organizations Share best practices and learn through the experiences of industry peers Where: Westin Chicago River North,  320 North Dearborn St,  Chicago, IL 60654 Evite: http://www.oracle.com/us/dm/229048-nafm13049989mpp074-se-2021171.html Register:   http://eventreg.oracle.com/profile/web/index.cfm?PKWebId=0x25005591a&source=evite Partner Sponsors Include: CSS, Fujitsu, Inspirage, Hitachi Consulting, Lucidity and Rolta Register Now!

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  • Desktop Fun: Stargate SG-1 Customization Set

    - by Asian Angel
    Are you feeling nostalgic for the days of classic Stargate SG-1 adventure? Then get ready to dial up that DHD and gate into a whole new desktop with our Stargate SG-1 Customization set. Latest Features How-To Geek ETC How to Get Amazing Color from Photos in Photoshop, GIMP, and Paint.NET Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? Peaceful Alpine River on a Sunny Day [Wallpaper] Fast Society Creates Mini and Mobile Temporary Social Networks Page Zipper Unpacks Multi-Page Articles for Single-Page Display Minty Bug: Build an FM Bug Inside a Mint Container Get the MakeUseOf eBook Guide to Hacker Proofing Your PC Sync Your Windows Computer with Your Ubuntu One Account [Desktop Client]

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  • Alcatel-Lucent Boosts Broadband Over Copper To 300Mbps

    - by Ratman21
    alphadogg at Slashdot writes "Alcatel-Lucent has come up with a way to [0]move data at 300Mbps over copper lines. So far the results have only been reproduced in a lab environment — real products and services won't be available for at least a year. From the article: 'Researchers at the company's Bell Labs demonstrated the 300Mbps technology over a distance of 400 meters using VDSL2 (Very high bitrate Digital Subscriber Line), according to Stefaan Vanhastel, director of product marketing at Alcatel-Lucent Wireline Networks. The test showed that it can also do 100Mbps over a distance of 1,000 meters, he said. Currently, copper is the most common broadband medium. About 65 percent of subscribers have a broadband connection that's based on DSL, compared to 20 percent for cable and 12 percent for fiber, according to market research company Point Topic. Today, the average advertised DSL speeds for residential users vary between 9.2 Mbps and 1.9Mbps in various parts of the world, Point Topic said.'" Discuss this story at: http://tech.slashdot.org/comments.pl?sid=10/04/21/239243

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  • Announcing: Oracle Solaris Cluster Product Bulletin, May 2014

    - by uwes
    New qualifications announcements and general news for Oracle Solaris Cluster products can be found in the new Product Bulletin Hardware Qualifications New Oracle ZFS Storage Appliance Kit versions with Oracle Solaris Cluster 4.1 geographic cluster Pillar AXIOM 600 with Oracle Solaris Cluster 4.1 on x86 Software Qualifications SAP Livecache 7.9 and MAXDB 7.9 Oracle Weblogic Server 12.1.2 Latest Support Information Oracle Solaris Cluster 4.1 SRU 7 (4.1.7) Oracle Solaris Cluster 3.3 3/13 patch train #5 Resources Configuration guides and documentation Product Update Bulletin Archives Contacts 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.com Oracle Solaris Cluster page Oracle Technology Network Oracle Solaris Cluster pageOracle Solaris Cluster MOS communityPartner web Oracle Solaris Cluster pageOracle Solaris Cluster Blog

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  • Java EE at JavaOne - A Few Picks from a Very Rich Line-up

    - by Janice J. Heiss
    A rich and diverse set of sessions cast a spotlight on Java EE at this year’s JavaOne, ranging from the popular Web Framework Smackdown, to Java EE 6 and Spring, to sessions exploring Java EE 7, and one on the implications of HTML5. Some of the world’s best EE architects and developers will be sharing their insight and expertise. If only I could be at ten places at once!BOF4149 - Web Framework Smackdown 2012    Markus Eisele - Principal IT Architect, msg systems ag    Graeme Rocher - Senior Staff Engineer, VMware    James Ward - Developer Evangelist, Heroku    Ed Burns - Consulting Member of Technical Staff, Oracle    Santiago Pericasgeertsen - Software Engineer, Oracle* Monday, Oct 1, 8:30 PM - 9:15 PM - Parc 55 - Cyril Magnin II/III Much has changed since the first Web framework smackdown, at JavaOne 2005. Or has it? The 2012 edition of this popular panel discussion surveys the current landscape of Web UI frameworks for the Java platform. The 2005 edition featured JSF, Webwork, Struts, Tapestry, and Wicket. The 2012 edition features representatives of the current crop of frameworks, with a special emphasis on frameworks that leverage HTML5 and thin-server architecture. Java Champion Markus Eisele leads the lively discussion with panelists James Ward (Play), Graeme Rocher (Grails), Edward Burns (JSF) and Santiago Pericasgeertsen (Avatar).CON6430 - Java EE and Spring Framework Panel Discussion    Richard Hightower - Developer, InfoQ    Bert Ertman - Fellow, Luminis    Gordon Dickens - Technical Architect, IT101, Inc.    Chris Beams - Senior Technical Staff, VMware    Arun Gupta - Technology Evangelist, Oracle* Tuesday, Oct 2, 10:00 AM - 11:00 AM - Parc 55 - Cyril Magnin II/III In the age of Java EE 6 and Spring 3, enterprise Java developers have many architectural choices, including Java EE 6 and Spring, but which one is right for your project? Many of us have heard the debate and seen the flame wars—it’s a topic with passionate community members, and it’s a vibrant debate. If you are looking for some level-headed discussion, grounded in real experience, by developers who have tried both, then come join this discussion. InfoQ’s Java editors moderate the discussion, and they are joined by independent consultants and representatives from both Java EE and VMWare/SpringSource.BOF4213 - Meet the Java EE 7 Specification Leads   Linda Demichiel - Consulting Member of Technical Staff, Oracle   Bill Shannon - Architect, Oracle* Tuesday, Oct 2, 5:30 PM - 6:15 PM – Parc 55 - Cyril Magnin II/III This is your chance to meet face-to-face with the engineers who are developing the next version of the Java EE platform. In this session, the specification leads for the leading technologies that are part of the Java EE 7 platform discuss new and upcoming features and answer your questions. Come prepared with your questions, your feedback, and your suggestions for new features in Java EE 7 and beyond.CON10656 - JavaEE.Next(): Java EE 7, 8, and Beyond    Ian Robinson - IBM Distinguished Engineer, IBM    Mark Little - JBoss CTO, NA    Scott Ferguson - Developer, Caucho Technology    Cameron Purdy - VP Development, Oracle*Wednesday, Oct 3, 4:30 PM - 5:30 PM - Parc 55 - Cyril Magnin II/IIIIn this session, hear from a distinguished panel of industry and open source luminaries regarding where they believe the Java EE community is headed, starting with Java EE 7. The focus of Java EE 7 and 8 is mostly on the cloud, specifically aiming to bring platform as a service (PaaS) providers and application developers together so that portable applications can be deployed on any cloud infrastructure and reap all its benefits in terms of scalability, elasticity, multitenancy, and so on. Most importantly, Java EE will leverage the modularization work in the underlying Java SE platform. Java EE will, of course, also update itself for trends such as HTML5, caching, NoSQL, ployglot programming, map/reduce, JSON, REST, and improvements to existing core APIs.CON7001 - HTML5 WebSocket and Java    Danny Coward - Java, Oracle*Wednesday, Oct 3, 4:30 PM - 5:30 PM - Parc 55 - Cyril Magnin IThe family of HTML5 technologies has pushed the pendulum away from rich client technologies and toward ever-more-capable Web clients running on today’s browsers. In particular, WebSocket brings new opportunities for efficient peer-to-peer communication, providing the basis for a new generation of interactive and “live” Web applications. This session examines the efforts under way to support WebSocket in the Java programming model, from its base-level integration in the Java Servlet and Java EE containers to a new, easy-to-use API and toolset that are destined to become part of the standard Java platform.

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  • Byte Size Tips: How to Stop OS X from Changing the Display Brightness Automatically

    - by The Geek
    After getting a new MacBook Air and deciding to try out OS X for a while, I started wondering why the battery would suddenly start dying really fast, but only when I was sitting at the kitchen table. That’s when I noticed the display brightness kept changing on its own… and realized the problem. OS X, just like your phone, and any modern device, tries to figure out the brightness of the room you’re in, and adjust the brightness of the screen. If you are over in Windows, it’s called “Adaptive” brightness, while your phone will just call it “Auto”. While this technology is great in theory, I don’t really need max brightness all the time, and I like to control it manually to make sure I’m getting the best battery life. Open up System Preferences, head to Displays. Then uncheck the Automatically adjust brightness setting.     

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  • Podcast Show Notes: The Role of the Cloud Architect

    - by Bob Rhubart
    Ron Batra James Baty If you want to understand what a cloud architect does, what better way than to talk to people in that role? In this program that’s exactly what we’ll do. Joining me for this conversation are cloud architects Ron Batra and Dr. James Baty. Ron is an Oracle ACE Director and product director for cloud computing at AT&T , and Jim is Vice President of Oracle’s Global Enterprise Architecture Program . This interview was recorded on June 12, 2012. The Conversation Listen to Part 1: How cloud computing is driving the supply-chaining of IT and the democratization of the activity of architecture. Listen to Part 2 (July 12): A discussion of DevOps, cloud computing, and the increasing velocity of IT. Listen to Part 3 (July 19): Why architects need to up their game to thrive and succeed in a cloud-driven world. Coming Soon A conversation about the International SOA, Cloud & Service Technology Symposium with a panel that features Thomas Erl and several Oracle community members who will be presenting at that event.

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  • Google I/O 2010 - ?Run corp apps on App Engine? Yes we do.

    Google I/O 2010 - ​Run corp apps on App Engine? Yes we do. Google I/O 2010 - ​Run corporate applications on Google App Engine? Yes we do. App Engine, Enterprise 201 Ben Fried, Irwin Boutboul, Justin McWilliams, Matthew Simmons Hear Google CIO Ben Fried and his team of engineers describe how Google builds on App Engine. If you're interested in building corp apps that run on Google's cloud, this team has been doing exactly that. Learn how these teams have been able to respond more quickly to business needs while reducing operational burden. For all I/O 2010 sessions, please go to code.google.com/events/io/2010/sessions.html From: GoogleDevelopers Views: 14 0 ratings Time: 55:53 More in Science & Technology

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  • Convince developer to use IDE

    - by artjom
    There is a developer, lets call him John (currently on probationary period) in company(pretty small company approx. 10 persons, 3 developers, one of them works long in this company know business process around and can be consider as Team leader) who didn't want to use any IDE at all(he is using some text editor). Application this team working on is medium size Java application with Spring Hibernate technology stack and refactoring/adding new features to launch new version of that application in near future. John performance working without IDE on this application is lower then desirable, team leader's (lets call him Bill) assumption is this happens because John is not using IDE. Bill try to persuade John to use IDE, but this idea meets a lot of resistance and main reason is "I want to be in total control of what I am doing, so I need to write all code by myself". How can Bill convince John to try to use IDE? (considering the fact what Bill already protected John from company owner several complaints about John performance)

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  • Why did Alan Kay say, "The Internet was so well done, but the web was by amateurs"?

    - by kalaracey
    OK, so I paraphrased. The full quote: The Internet was done so well that most people think of it as a natural resource like the Pacific Ocean, rather than something that was man-made. When was the last time a technology with a scale like that was so error-free? The Web, in comparison, is a joke. The Web was done by amateurs. -- Alan Kay. I am trying to understand the history of the Internet and the web, and this statement is hard to understand. I have read elsewhere that the Internet is now used for very different things than it was designed for, and so perhaps that factors in. What makes the Internet so well done, and what makes the web so amateurish? (Of course, Alan Kay is fallible, and no one here is Alan Kay, so we can't know precisely why he said that, but what are some possible explanations?) *See also the original interview*.

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  • Is it true that quickly closing a webpage opened from a search engine result can hurt the site's ranking?

    - by Austin ''Danger'' Powers
    My web designer recently told me that I need to be careful not to Google for my business' website, click on its search result link, then quickly close the page (or click back) too many times. He says "Google knows" that I didn't stay on the page, and could penalize my site for having a high click-through rate if it happens too much (it was something along those lines- I forget the exact wording). Apparently, it could look like the behavior of a visitor who was not interested in what they found (hence the alleged detrimental effect on the site's search ranking). This sounds hard to believe to me because I would not have thought any information is transmitted which tells Google (or anyone, for that matter) whether or not a website is still open in a browser (in my case Firefox v25.0). Could there possibly be any truth to this? If not, why might he have come to this conclusion? Is there some click-tracking or similar technology employed by search engines which does something similar? Looking forward to hearing everyone's thoughts.

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  • Notebook MSI GT640 - noisy fan - Ubuntu 11.10 x64

    - by pablo
    I have all time this issue when using Ubuntus, the fan (fans?) runs most off the time and between 60%~100% even in idle which is weird. The GPU temperatures are mostly around 80 degrees and I don't think it's right :( I always use Jupiter with power saving preset and add the line in linux default like this: quiet splash pcie_aspm=force i915.i915_enable_rc6=1 So it helps a little (fan just doesn't run all the time 100%...) What else can I do? The notebook spec is: Core i7-720 (8 threads) NVIDIA GTS250M So it's rather one of the first, not so silent and cold notebooks;), with Core i7 family and without optimus technology (as nvidia GPU is the only graphic card built-in) but anyway I don't have theese strange hot times in Windows 7.

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  • Oracle R Enterprise Tutorial Series on Oracle Learning Library

    - by mhornick
    Oracle Server Technologies Curriculum has just released the Oracle R Enterprise Tutorial Series, which is publicly available on Oracle Learning Library (OLL). This 8 part interactive lecture series with review sessions covers Oracle R Enterprise 1.1 and an introduction to Oracle R Connector for Hadoop 1.1: Introducing Oracle R Enterprise Getting Started with ORE R Language Basics Producing Graphs in R The ORE Transparency Layer ORE Embedded R Scripts: R Interface ORE Embedded R Scripts: SQL Interface Using the Oracle R Connector for Hadoop We encourage you to download Oracle software for evaluation from the Oracle Technology Network. See these links for R-related software: Oracle R Distribution, Oracle R Enterprise, ROracle, Oracle R Connector for Hadoop.  As always, we welcome comments and questions on the Oracle R Forum.

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  • Oracle E-Business Supply Chain Suite Release 12.1.2: Latest & Greatest!

    - by [email protected]
    This week we hosted one of several planned orientation and training sessions for the ASR/ASM sales community.  The purpose of the session was to orient our contact center and marketing associates with the 'hotpoints' of the latest release and to provide a few 'snippets' for the scheduled 'call-down' to the installed base.  Oracle EBS Release 12.1.2 contains some of the most powerful supply chain applications technology available to the industrial, commercial and public sector communities.  They should all be taking advantage of this great capability to drive margins, control costs and achieve compliance.   In today's changing business landscape, organizations need competitive advantage and we see that R12 provides this capability according to our customers leveraging the upgrade.

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  • My Right-to-Left Foot (T-SQL Tuesday #13)

    - by smisner
    As a business intelligence consultant, I often encounter the situation described in this month's T-SQL Tuesday, hosted by Steve Jones ( Blog | Twitter) – “What the Business Says Is Not What the  Business Wants.” Steve posed the question, “What issues have you had in interacting with the business to get your job done?” My profession requires me to have one foot firmly planted in the technology world and the other foot planted in the business world. I learned long ago that the business never says exactly what the business wants because the business doesn't have the words to describe what the business wants accurately enough for IT. Not only do technological-savvy barriers exist, but there are also linguistic barriers between the two worlds. So how do I cope? The adage "a picture is worth a thousand words" is particularly helpful when I'm called in to help design a new business intelligence solution. Many of my students in BI classes have heard me explain ("rant") about left-to-right versus right-to-left design. To understand what I mean about these two design options, let's start with a picture: When we design a business intelligence solution that includes some sort of traditional data warehouse or data mart design, we typically place the data sources on the left, the new solution in the middle, and the users on the right. When I've been called in to help course-correct a failing BI project, I often find that IT has taken a left-to-right approach. They look at the data sources, decide how to model the BI solution as a _______ (fill in the blank with data warehouse, data mart, cube, etc.), and then build the new data structures and supporting infrastructure. (Sometimes, they actually do this without ever having talked to the business first.) Then, when they show what they've built to the business, the business says that is not what we want. Uh-oh. I prefer to take a right-to-left approach. Preferably at the beginning of a project. But even if the project starts left-to-right, I'll do my best to swing it around so that we’re back to a right-to-left approach. (When circumstances are beyond my control, I carry on, but it’s a painful project for everyone – not because of me, but because the approach just doesn’t get to what the business wants in the most effective way.) By using a right to left approach, I try to understand what it is the business is trying to accomplish. I do this by having them explain reports to me, and explaining the decision-making process that relates to these reports. Sometimes I have them explain to me their business processes, or better yet show me their business processes in action because I need pictures, too. I (unofficially) call this part of the project "getting inside the business's head." This is starting at the right side of the diagram above. My next step is to start moving leftward. I do this by preparing some type of prototype. Depending on the nature of the project, this might mean that I simply mock up some data in a relational database and build a prototype report in Reporting Services. If I'm lucky, I might be able to use real data in a relational database. I'll either use a subset of the data in the prototype report by creating a prototype database to hold the sample data, or select data directly from the source. It all depends on how much data there is, how complex the queries are, and how fast I need to get the prototype completed. If the solution will include Analysis Services, then I'll build a prototype cube. Analysis Services makes it incredibly easy to prototype. You can sit down with the business, show them the prototype, and have a meaningful conversation about what the BI solution should look like. I know I've done a good job on the prototype when I get knocked out of my chair so that the business user can explore the solution further independently. (That's really happened to me!) We can talk about dimensions, hierarchies, levels, members, measures, and so on with something tangible to look at and without using those terms. It's not helpful to use sample data like Adventure Works or to use BI terms that they don't really understand. But when I show them their data using the BI technology and talk to them in their language, then they truly have a picture worth a thousand words. From that, we can fine tune the prototype to move it closer to what they want. They have a better idea of what they're getting, and I have a better idea of what to build. So right to left design is not truly moving from the right to the left. But it starts from the right and moves towards the middle, and once I know what the middle needs to look like, I can then build from the left to meet in the middle. And that’s how I get past what the business says to what the business wants.

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  • Premature-Optimization and Performance Anxiety

    - by James Michael Hare
    While writing my post analyzing the new .NET 4 ConcurrentDictionary class (here), I fell into one of the classic blunders that I myself always love to warn about.  After analyzing the differences of time between a Dictionary with locking versus the new ConcurrentDictionary class, I noted that the ConcurrentDictionary was faster with read-heavy multi-threaded operations.  Then, I made the classic blunder of thinking that because the original Dictionary with locking was faster for those write-heavy uses, it was the best choice for those types of tasks.  In short, I fell into the premature-optimization anti-pattern. Basically, the premature-optimization anti-pattern is when a developer is coding very early for a perceived (whether rightly-or-wrongly) performance gain and sacrificing good design and maintainability in the process.  At best, the performance gains are usually negligible and at worst, can either negatively impact performance, or can degrade maintainability so much that time to market suffers or the code becomes very fragile due to the complexity. Keep in mind the distinction above.  I'm not talking about valid performance decisions.  There are decisions one should make when designing and writing an application that are valid performance decisions.  Examples of this are knowing the best data structures for a given situation (Dictionary versus List, for example) and choosing performance algorithms (linear search vs. binary search).  But these in my mind are macro optimizations.  The error is not in deciding to use a better data structure or algorithm, the anti-pattern as stated above is when you attempt to over-optimize early on in such a way that it sacrifices maintainability. In my case, I was actually considering trading the safety and maintainability gains of the ConcurrentDictionary (no locking required) for a slight performance gain by using the Dictionary with locking.  This would have been a mistake as I would be trading maintainability (ConcurrentDictionary requires no locking which helps readability) and safety (ConcurrentDictionary is safe for iteration even while being modified and you don't risk the developer locking incorrectly) -- and I fell for it even when I knew to watch out for it.  I think in my case, and it may be true for others as well, a large part of it was due to the time I was trained as a developer.  I began college in in the 90s when C and C++ was king and hardware speed and memory were still relatively priceless commodities and not to be squandered.  In those days, using a long instead of a short could waste precious resources, and as such, we were taught to try to minimize space and favor performance.  This is why in many cases such early code-bases were very hard to maintain.  I don't know how many times I heard back then to avoid too many function calls because of the overhead -- and in fact just last year I heard a new hire in the company where I work declare that she didn't want to refactor a long method because of function call overhead.  Now back then, that may have been a valid concern, but with today's modern hardware even if you're calling a trivial method in an extremely tight loop (which chances are the JIT compiler would optimize anyway) the results of removing method calls to speed up performance are negligible for the great majority of applications.  Now, obviously, there are those coding applications where speed is absolutely king (for example drivers, computer games, operating systems) where such sacrifices may be made.  But I would strongly advice against such optimization because of it's cost.  Many folks that are performing an optimization think it's always a win-win.  That they're simply adding speed to the application, what could possibly be wrong with that?  What they don't realize is the cost of their choice.  For every piece of straight-forward code that you obfuscate with performance enhancements, you risk the introduction of bugs in the long term technical debt of the application.  It will become so fragile over time that maintenance will become a nightmare.  I've seen such applications in places I have worked.  There are times I've seen applications where the designer was so obsessed with performance that they even designed their own memory management system for their application to try to squeeze out every ounce of performance.  Unfortunately, the application stability often suffers as a result and it is very difficult for anyone other than the original designer to maintain. I've even seen this recently where I heard a C++ developer bemoaning that in VS2010 the iterators are about twice as slow as they used to be because Microsoft added range checking (probably as part of the 0x standard implementation).  To me this was almost a joke.  Twice as slow sounds bad, but it almost never as bad as you think -- especially if you're gaining safety.  The only time twice is really that much slower is when once was too slow to begin with.  Think about it.  2 minutes is slow as a response time because 1 minute is slow.  But if an iterator takes 1 microsecond to move one position and a new, safer iterator takes 2 microseconds, this is trivial!  The only way you'd ever really notice this would be in iterating a collection just for the sake of iterating (i.e. no other operations).  To my mind, the added safety makes the extra time worth it. Always favor safety and maintainability when you can.  I know it can be a hard habit to break, especially if you started out your career early or in a language such as C where they are very performance conscious.  But in reality, these type of micro-optimizations only end up hurting you in the long run. Remember the two laws of optimization.  I'm not sure where I first heard these, but they are so true: For beginners: Do not optimize. For experts: Do not optimize yet. This is so true.  If you're a beginner, resist the urge to optimize at all costs.  And if you are an expert, delay that decision.  As long as you have chosen the right data structures and algorithms for your task, your performance will probably be more than sufficient.  Chances are it will be network, database, or disk hits that will be your slow-down, not your code.  As they say, 98% of your code's bottleneck is in 2% of your code so premature-optimization may add maintenance and safety debt that won't have any measurable impact.  Instead, code for maintainability and safety, and then, and only then, when you find a true bottleneck, then you should go back and optimize further.

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  • Google I/O 2010 - Google Storage for Developers

    Google I/O 2010 - Google Storage for Developers Google I/O 2010 - Google Storage for Developers App Engine, Enterprise 101 David Erb, Michael Schwartz Google is expanding our storage products by introducing Google Storage for Developers. It offers a RESTful API for storing and accessing data at Google. Developers can take advantage of the performance and reliability of Google's storage infrastructure, as well as the advanced security and sharing capabilities. We will demonstrate key functionality of the product as well as customer use cases. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 13 0 ratings Time: 52:14 More in Science & Technology

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  • DevConnections new "Fundamentals" Track!

    - by psheriff
    Hi All, I am now the new Track Chair for the "Fundamentals" track at DevConnections. I know many of my readers feel overwhelmed by all of the "advanced" topics out there. The folks at the DevConnections conference realized that too and have added many new sessions that help programmers that are in the beginning to intermediate stage get up to speed on all the new technology that is coming out so fast. I will be presenting a whole day long workshop at the DevConnections conference in Orlando on March 27th entitled "Essential Business Desktop Programming with .NET". In addition I will be presenting the following sessions in the Fundamentals Track. MVVM Made Simple Unit Testing Basics and Architecting Your Application for Unit Testing Data Binding from A-Z in Silverlight From Zero to Windows Phone 7 in 75 MinutesI hope I will see you there! Join me at DevConnections @devconnections in Orlando March 27-30.   Save $200 use discount code DevCon1 Register today at bit.ly/fIZjXO

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  • Resources for understanding iOS architecture [closed]

    - by BlackJack
    I recently finished reading Randall Hyde's excellent book Write Great Code: Volume 1: Understanding the Machine, and I have a much better knowledge of what's going on under the hood now. I want to start making iPhone apps, and there are lots of guides for that. Embracing my inner Hyde, however, I want to first learn about the iOS system architecture. Apple has a really good overview here: iOS Technology Overview Before I start, I wanted to know if there were any other good resources for understanding iOS architecture and using that knowledge for iPhone programming. Thanks.

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  • Oracle E-Business Suite Partners Get Plugged In - Oracle Enterprise Manager 12c

    - by Get_Specialized!
      Oracle E-Business Suite Plug-in, an integral part of Application Management Suite for Oracle E-Business Suite, is Generally Available. More information may be found in note 1434392.1 on MyOracle Support. Oracle E-Business Suite Plug-in can be accessed a few ways: Fresh install Enterprise Manager Store Oracle Software Delivery Cloud   Upgrade Oracle Technology Network Please refer to the Application Management Pack for Oracle E-Business Suite Guide for further details. If you are a partner and have not yet joined the Oracle PartnerNetwork Enterprise Manager KnowledgeZone, be sure and sign up today to learn more about Oracle Application Management and how it can aid your customers and business.

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