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Fabulous Adventures In Coding : The Stack Is An Implementation Detail, Part One - 0 views

blogs.msdn.com/...-an-implementation-detail.aspx clr cli .NETGeneral c# memory allocation
shared by Matteo Spreafico on 14 Aug 09 - Cached
  • Almost every article I see that describes the difference between value types and reference types explains in (frequently incorrect) detail about what “the stack” is and how the major difference between value types and reference types is that value types go on the stack.
  • I find this characterization of a value type based on its implementation details rather than its observable characteristics to be both confusing and unfortunate. Surely the most relevant fact about value types is not the implementation detail of how they are allocated, but rather the by-design semantic meaning of “value type”, namely that they are always copied “by value”.
  • Of course, the simplistic statement I described is not even true. As the MSDN documentation correctly notes, value types are allocated on the stack sometimes. For example, the memory for an integer field in a class type is part of the class instance’s memory, which is allocated on the heap.
  • ...3 more annotations...
  • As long as the implementation maintains the semantics guaranteed by the specification, it can choose any strategy it likes for generating efficient code
  • That Windows typically does so, and that this one-meg array is an efficient place to store small amounts of short-lived data is great, but it’s not a requirement that an operating system provide such a structure, or that the jitter use it. The jitter could choose to put every local “on the heap” and live with the performance cost of doing so, as long as the value type semantics were maintained
  • I would only be making that choice if profiling data showed that there was a large, real-world-customer-impacting performance problem directly mitigated by using value types. Absent such data, I’d always make the choice of value type vs reference type based on whether the type is semantically representing a value or semantically a reference to something.
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Jonathan Schwartz's Blog: Sun's Cloud (4 of 4) - 0 views

blogs.sun.com/...unified_computing Storage cloud-computing servers openoffice.org
shared by David Corking on 25 Apr 09 - Cached
  • our sales and partner force has a tenth the resources of our biggest peers.
    • David Corking
      David Corking on 25 Apr 09
       
      Is he talking about IBM, EMC, Microsoft, Oracle, Cisco and SAP? I beat Sun has more pony tails than its peers. I would like to see those numbers.
  • inside Sun, we're just now rolling out a version of OpenOffice extended for the cloud.
    • David Corking
      David Corking on 25 Apr 09
       
      Simple but sweet. I doubt it wil beat Google Docs for attracting collaborating groups, but it might! Corporations may want to do something similar with their private storage. How do they avoid malicious macros propagating from one cloud user to the next?
  • VB users will see a new feature later this year, offering an upload service to those wishing to archive or run multiple OS/application stacks - in Sun's Cloud.
    • David Corking
      David Corking on 25 Apr 09
       
      VB doesn't mean "Visual Basic" any longer. This is clever leverage, I think, and one that will be supported by the open source community, because the cloud specs are open documents.
  • ...1 more annotation...
  • Clouds are just as interesting to students and startups as they are to Fortune 500 customers.
    • David Corking
      David Corking on 25 Apr 09
       
      perhaps much more interesting?
  • David Corking on 25 Apr 09
     
    Inspiring radical vision for open source to win in the long term.
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Output Caching with the Spark View Engine - 0 views

sparkviewengine.com/...caching Development .Net Asp.Net MVC SparkViewEngine
shared by Joel Bennett on 01 Jan 10 - Cached
  • Joel Bennett on 01 Jan 10
     
    Expiring the cached output when it reaches a certain age, or when unused for a certain period, always involves a trade-off... To have ultimate control over your cached data you may provide an ICacheSignal that will fire an event when the data changes.
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CSS Documentation Shortcut - cssdocs.org/propertyName - 3 views

cssdocs.org w3c quicksearch search css reference
shared by yc c on 23 Oct 09 - Cached
  • yc c on 23 Oct 09
     
    useful to use as FF smart search
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Apple Human Interface Guidelines: Introduction to Apple Human Interface Guidelines - 2 views

developer.apple.com/...chapter_1_section_1.html apple design ui guidelines
shared by yc c on 30 Oct 09 - Cached
  • yc c on 30 Oct 09
     
    Conceptual and task-oriented information. Guides include overviews, tutorials, programming guides, server administration guides, and, for developer tools, user guides.
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gotAPI.com - Documentation search engine - 2 views

beta.gotapi.com reference javascript api css html xml dom
shared by yc c on 17 Nov 09 - Cached
  • yc c on 17 Nov 09
     
    gotAPI helps you find functions, classes, methods, properties, styles, tags, constants and more \n Search In\nActionScript 2.0, ActionScript 3.0, Adobe Flex 2, Adobe Flex 3.3, Apache Ant, Apache Commons, Apache RegExp, Apache Struts 1.1, Berkley DB XML, Bluetooth and OBEX, C++, CakePHP 1.2, Castor, CDC, CLDC, ColdFusion MX-7, ColdFusion MX-8, CSS, CSS, DbUnit 2.4.5, Dinkumware C/C++, DITA 1.1, DocBook, Dojo Toolkit 1.3, Drupal, Eclipse Platform 2.1, Erlang, Flickr API, FP, Google GWT, Google GWT+Gears, Groovy, Haskell, Hibernate, HTML, HTML, HttpUnit, J2EE 5.0, Java 1.5, Java 1.6, JavaScript, JavaScript, jQuery, JSON LIB, JSTL, JUnit, Log4J, MIDP, Mobile Media, MochiKit, MooTools, MySQL 4.1, OpenGL 2.1, Oracle 10g, Oracle 9i, Orb API 2.0, OSGi Platform 4.1, PBP, Perl 5.10, PHP, PostgreSQL 8.3, Prototype.js, Python 2.6.1, RMagick 1.15, RogueWave, Ruby Std Libraries, Ruby/Rails, Scala 2.7.3, Schema (XSD), Script.aculo.us 1.8, Selenium 0.8.2, Sicstus Prolog, Simple DirectMedia Layer, Spring Framework 2.0, Symphony 1.2, Twitter API, Web Services, XML DOM, XPath 2.0, XSL 2.0, Yahoo! UI\n
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[Q&A] BPMN's advantages over other modeling methods ? - BPM Research Forums, 2006-08-13 - 1 views

www.bpm-research.com/...index.php Q&A BPMN versus UML modeling
shared by Fabien Cadet on 18 Jul 11 - No Cached
  • On the other hand, BPMN has been designed with the aim of being a notation for high-level modeling.
  • BPMN models are not intended to be directly executed. They need to be refined (e.g. into BPEL processes) prior to execution.
  • At the most, BPMN might be used to generate "templates of BPEL code" that developers will have to refine to obtain a running implementation.
  • ...1 more annotation...
  • In fact, one could safely bet that a lot of people will define BPMN models for the pure purpose of documenting business processes, and not for the purpose of developing software. Many BPMN models will never be executed or lead to any piece of software. They'll just be used as part of a methodology for business improvement.

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