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  • Linux Scheduling Mechanism in 2.6.22?

    - by Mazen
    Hello, I'm doing some kind of performance evaluation using two different vanilla Linux kernels, 2.6.22 and 2.6.31, since I assume each of them uses a different scheduling mechanism: 2.6.22 uses the old O(1) scheduler, whilst 2.6.31 adopts the CFS. Could anybody confirm the correction of this assumption?

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  • What is the fastest method to create a new database from a template ?

    - by Locksfree
    We are creating databases on demand and the databases can be created from different templates. All templates have the same structure but different data. The data contained by the templates is small. What is the fastest way to create a copy of the database: Backup/Restore Using T-SQL ? Using SMO ? Create a new database from a scripted version of the template and then fill in the little data required ? Other ?

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  • looping through variable post vars and adding them to the database

    - by Neil Hickman
    I have been given the task of devising a custom forms manager that has a mysql backend. The problem I have now encountered after setting up all the front end, is how to process a form that is dynamic. For E.G Form one could contain 6 fields all with different name attributes in the input tag. Form two could contain 20 fields all with different name attributes in the input tag. How would i process the forms without using up oodles of resource.

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  • What are the benefits of learning a new language, as a game developer?

    - by Keand64
    I'm an independant game developer/designer, and I'm wondering what specific benefits are there to learning a new programming language. I do my programming in C++ currently, and I want to know if there are any tangible benefits to learning a different language, as in, benefits to writing a game x in language y versus game w in language z? Basically, I understand that learning a new programming language will help me think about a problem in different ways, but what are some actual benefits to using one language over another in specific scenarios?

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  • BlackBerry specific stylesheet

    - by Luke
    We want to use the same page to service the desktop, iPhone, and BlackBerry, so we have to come up with a way for the different devices to load different stylesheets. So, is there a way to specify a stylesheet to run on BlackBerry? For example, iPhone's use the media attribute: <link media="only screen and (max-device-width: 320px)" href="style.css" ...

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  • ARM Simulator on Windows

    - by Betamoo
    I am studying ARM Processors from a textbook... I thought it will be more useful if I could apply what I learn on an ARM simulator... writing code then watching results and different execution stages would be more fun... I have searched for it, but all I could find was either a freeware on linux or a demo on windows Is there a simulator that allow me to see execution steps and different changes for ARM processor (any version!) that runs on windows?? Thanks

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  • how to give size of a control in window mobile app

    - by zebamuskan
    how to give size of a control in window mobile app dynamically,because i have developed one application,when i used to run that application on different emulator's ,the size of that control's in that application differ's for different emulator.so could u plz help me that how we can handle such issue in windows mobile application in which iam using visual studio 2008 and windows mobile6 classical emulator

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  • How to insert a float into a SQL table in the rigth locale

    - by SoMoS
    Hello, I have to insert float values into different SQL Servers. Each one can have different locales so in one it the representation could be "42,2" and at another one "42.2" or whatever. How should i construct the query so it works in any SQL Server? Do i need to detect the locale of the server before constructing the query or what? Thanks in advance mates.

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  • Detect similar sounding words in Ruby

    - by JP
    I'm aware of SOUNDEX and (double) Metaphone, but these don't let me test for the similarity of words as a whole - for example "Hi" sounds very similar to "Bye", but both of these methods will mark them as completely different. Are there any libraries in Ruby, or any methods you know of, that are capable of determining the similarity between two words? (Either a boolean is/isn't similar, or numerical 40% similar) edit: Extra bonus points if there is an easy method to 'drop in' a different dialect or language!

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  • 2 Questions about nUnit.

    - by Night Walker
    Hi all I have 2 questions about functionality of nunit. What is the difference between [TestFixtureSetUp] and [SetUp] attributes ? I am writing a some class with tests and I see that half of my test functions need one setup, And an another half needs another set up. How can I have in one class two little different SetUp functions that are called with different functions Thanks.

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  • SQL/Schema comparison and upgrade

    - by Workshop Alex
    I have a simple situation. A large organisation is using several different versions of some (desktop) application and each version has it's own database structure. There are about 200 offices and each office will have it's own version, which can be one of 7 different ones. The company wants to upgrade all applications to the latest versions, which will be version 8. The problem is that they don't have a separate database for each version. Nor do they have a separate database for each office. They have one single database which is handled by a dedicated server, thus keeping things like management and backups easier. Every office has it's own database schema and within the schema there's the whole database structure for their specific application version. As a result, I'm dealing with 200 different schema's which need to be upgraded, each with 7 possible versions. Fortunately, every schema knows the proper version so checking the version isn't difficult. But my problem is that I need to create upgrade scripts which can upgrade from version 1 to version 2 to version 3 to etc... Basically, all schema's need to be bumped up one version until they're all version 8. Writing the code that will do this is no problem. the challenge is how to create the upgrade script from one version to the other? Preferably with some automated tool. I've examined RedGate's SQL Compare and Altova's DatabaseSpy but they're not practical. Altova is way too slow. RedGate requires too much processing afterwards, since the generated SQL Script still has a few errors and it refers to the schema name. Furthermore, the code needs to become part of a stored procedure and the code generated by RedGate doesn't really fit inside a single procedure. (Plus, it's doing too much transaction-handling, while I need everything within a single transaction. I have been considering using another SQL Comparison tool but it seems to me that my case is just too different from what standard tools can deliver. So I'm going to write my own comparison tool. To do this, I'll be using ADOX with Delphi to read the catalogues for every schema version in the database, then use this to write the SQL Statements that will need to upgrade these schema's to their next version. (Comparing 1 with 2, 2 with 3, 3 with 4, etc.) I'm not unfamiliar with generating SQL-Script-Generators so I don't expect too many problems. And I'll only be upgrading the table structures, not any of the other database objects. So, does anyone have some good tips and tricks to apply when doing this kind of comparisons? Things to be aware of? Practical tips to increase speed?

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  • Is System.nanoTime() consistent across threads?

    - by obvio171
    I want to count the time elapsed between two events in nanoseconds. To do that, I can use System.nanoTime() as mentioned here. The problem is that the two events are happening in different threads. Since nanoTime() doesn't return an absolute timestamp but instead can only be used to calculate time differences, I'd like to know if the values I get on the two different threads are consistent with the physical time elapsed between the two events.

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  • mysql insert data from multiple select queries

    - by daulex
    What I've got working and it's what I need to improve on: INSERT form_data (id,data_id, email) SELECT fk_form_joiner_id AS data_id, value AS email FROM wp_contactform_submit_data WHERE form_key='your-email' This just gets the emails, now this is great, but not enough as I have a good few different values of form_key that I need to import into different columns, I'm aware that I can do it via php using foreach loops and updates, but this needs to be done purely in mysql. So how do I do something like: insert form_data(id,data,email,name,surname,etc) Select [..],Select [..].... Please help

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  • how to refresh mulitple divs when after posting using jquery

    - by oo
    i have a screen with multiple little widgets (all with different divs around them). i have one form and when i post (using jquery) right now it updates the single form using ajax. i want two other divs to refresh as well (that are outside the form). What is the best way to trigger a refresh of multiple different divs on a single jquery ajax post callback?

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  • How to configure multiple web site with django and tornado?

    - by mapcuk
    On my VDS I use nginx, django and tornado. I had just one project, Now i gonna deploy another one project with a different domain name. I want to use different databases and folders. I know how to configure nginx for serving static resourses , but what about tornado? Should i run separeted instance of tornado for each project or is there any better solution?

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  • How do game companies handle programming for multiple platforms?

    - by stormist
    You often see that a new game will be released on Xbox 360, PS3 and Windows PC. How do gaming companies do this? Is it a common source code compiled using different compilers? Are actual different source codes required? example news article announcing this: http://www.gameranx.com/updates/id/502/article/dungeon-siege-3-announced-to-be-developed-by-obsidian/

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  • Problem with iPhone interoperability and Flash

    - by asksuperuser
    Many Fortune 500 companies have incorporated flash in their websites. What solution to port them to all Mobiles as I hear Apple refuses to get flash ? So what solution does one have ? Redevelop everything at awfull cost using different apis for different mobiles ? Why does iphone refuses to incorporate flash ? What's the purpose of such restriction ?

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  • Load test results VSTS 2008

    - by Julia
    Can anybody explain why load test result on Graph are different form load test result on Table Page. If compare Min and Avg page response time they are the same. But if we compare figures in Max column they are different for the same page and the same load rest run. see linked images for more details. http://cid-ee8b34c203174724.skydrive.live.com/self.aspx/.Public/3.png

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  • How do you combine "Revision Control" with "WorkFlow" for R?

    - by Tal Galili
    Hello all, I remember coming across R users writing that they use "Revision control" (e.g: "Source control"), and I am curious to know: How do you combine "Revision control" with your statistical analysis WorkFlow? Two (very) interesting discussions talk about how to deal with the WorkFlow. But neither of them refer to the revision control element: http://stackoverflow.com/questions/1266279/how-to-organize-large-r-programs http://stackoverflow.com/questions/1429907/workflow-for-statistical-analysis-and-report-writing A Long Update To The Question: Following some of the people's answers, and Dirk's question in the comment, I would like to direct my question a bit more. After reading the Wiki article about "revision control" (which I was previously not familiar with), it was clear to me that when using revision control, what one does is to build a development structure of his code. This structure either leads to a "final product" or to several branches. When building something like, let's say, a website. There is usually one end product you work towards (the website), with some prototypes along the way. But when doing a statistical analysis, the work (to my view) is different. Sometimes you know where you want to get to. But more often, you explore. Explore cleaning the dataset. Explore different methods for statistical analysis, and ask various questions of your data (and I am writing this, knowing how Frank Harrell, and other experience statisticians feels about Data dredging). That is way the WorkFlow question with statistical programming is (in my view) a serious and deep question, raising many issues, The simpler ones are technical: Which revision control software do you use (and why) ? Which IDE do you use(and why) ? The more interesting question are about work process: How do you structure your files? What do you keep as a separate file and what as a revision? or asking in a different way - What should be a "branch" and what should be a "sub project" in your code? For example: When starting to explore your data, should a plot be creating and then erased because it didn't lead any where (but kept as a revision) or should there be a backup file of that path? How you solve this tension was my initial curiosity. The second question is "what might I be missing?". What rules (of thumb) should one follow so to avoid common pitfalls doing statistical programming with version control? In my intuition, I feel that statistical programming is inherently different then software development (I am writing this without being a real expert in statistical programming, and even less so in software development). That's way I am unsure which of the lessons I have read here about version control would be applicable. Thanks a lot, Tal

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