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  • What was the most refreshingly honest non-technical comment you saw?

    - by DVK
    OK, so we all saw the lists of "funny" or "bad" comments. However, today, when maintaining an old stored procedure, I stumbled upon a comment which I couldn't classify other than "refreshingly brutally honest", left by a previous maintainer around a really freakish (both performance and readability-wise) page-long query: -- Feel free to optimize this if you can understand what it means So, in the first (and hopefully only) poll type question in my history of Stack Overflow, I'd like to hear some other "refreshingly brutally honest" code comments you encountered or written.

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  • Jave JIT compiler compiles at compile time or runtime ?

    - by Tony
    From wiki: In computing, just-in-time compilation (JIT), also known as dynamic translation, is a technique for improving the runtime performance of a computer program. So I guess JVM has another compiler, not javac, that only compiles bytecode to machine code at runtime, while javac compiles sources to bytecode,is that right?

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  • Is it wrong to use Deprecated methods or classes in Java?

    - by Umesh Aawte
    I am using eclipse to develop one web application. Just today I have updated my struts version by changing the JAR file. I am getting warnings at some places that methods are deprecated, but the code is working fine. I want to know some things Is it wrong to use Deprecated methods or classes in Java? what if don't change any method and run my application with warnings that I have, will it create any performance issue.

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  • What's the best way to add scripting to an Android app?

    - by Omega
    I have an XML based file format that I'm using to store and load instances of objects. I'm interested in adding some scripting support to those objects so that they can respond to events. That said, I also don't want to cripple performance. Are there any well known scripting options for Android - maybe even ones where while loading, I can pre-compile and cache the scripts?

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  • What is the best method to convert to an Integer in JavaScript?

    - by Mathew Byrne
    There are several different methods for converting floating point numbers to Integers in JavaScript. My question is what method gives the best performance, is most compatible, or is considered the best practice? Here are a few methods that I know of: var a = 2.5; window.parseInt(a); // 2 Math.floor(a); // 2 a | 0; // 2 I'm sure there are others out there. Suggestions?

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  • innerHTML and event delegation

    - by Mark Gerrard
    Hello, I have a containing div that has multiple divs within which is updated every 25ms using innerHTML (for performance reasons). I have tried using event delegation to capture events but nothing I seem to do captures the click event. I think this may be due to the speed that the contents are getting updated. Any ideas would be very welcome. Thanks Mark

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  • copy and Search Web services

    - by user171523
    We are in the process of integrating ASP.NET Business App with Sharepoint. I have some Design questions. Requirement - From ASP.NET buz application we upload document to Sharepoint Doc Lib 2010 using Web Services. And perform a Search using Serach web service. I would like to know from group are there any disadvantages doing this? Performance etc .. What kind of seacurity consideration i need to be thinking of.

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  • Linq Expression Trees in Compact Framework.

    - by Michal Drozdowicz
    The lack of expression trees in Compact Framework has bugged me for some time now, but I haven't really looked for a solution. Today, I've found a blog post about an alternative System.Linq.Expressions built on top of Mono System.Core and used e.g. by db4o (you can find it here). My question is - have you used this library and if so, what were your experiences with it (especially regarding performance)?

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  • Generating db schema from c# class

    - by Niran
    Hi, Is there any other method than nHibernate by wich we can generate db schema from class definition? My classes arn't that complex etc (few one-to-many relations). However I would like to just be able to save my objects in db and recreate schema if needed. I am stuck with .NET 2.0. I am not that particular about performance for this project, I am just lazy to create tables and write save/load code and deel with nHibernate xml. Thanks

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  • Is it bad to explicitly compare against boolean constants e.g. if (b == false) in Java?

    - by polygenelubricants
    Is it bad to write: if (b == false) //... while (b != true) //... Is it always better to instead write: if (!b) //... while (!b) //... Presumably there is no difference in performance (or is there?), but how do you weigh the explicitness, the conciseness, the clarity, the readability, etc between the two? Note: the variable name b is just used as an example, ala foo and bar.

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  • What is the best way to download files via HTTP using c#

    - by Shamika
    Hi, In one of my application I'm using the WebClient class to download files from a web server. Depending on the web server sometimes the application download millions of documents. It seems to be when there are lot of documents, performance vise the WebClient doesn't scale up well. Also it seems to be the WebClient doesn't immediately close the connection it opened for the WebServer even after it successfully download the particular document. I would like to know what other alternatives I have. Thanks, Shamika

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  • CounchDB in Production

    - by NoelAdy
    I have been using CouchDB on some prototype applications and it has been brilliant, very easy to use and extremely quick. I was wondering if anyone has been using it in production and have any views on it's reliability, performance suitability for operational management etc ?? I am considering using it to support a service layer and would make use of its replication functionality. Any comments/experiences would be most welcome.

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  • Is it reasonable to use OpenGL for desktop applications?

    - by JamesK89
    I've been writing a small desktop gadget-type application that displays scrolling text along the bottom of the screen (Similar to the old CNN news ticker), however the performance of GDI is just unsatisfactory (As high as 8-12% on a quad core and 20% on a single core) even after I've attempted to clean out bottlenecks. I was considering using OpenGL instead to render everything, but I don't know if that is a reasonable option to require users to have hardware acceleration for a tiny app like this. Does anybody have any input on this?

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  • SSI or PHP Include()?

    - by Ozzy
    Hi all, basically i am launching a site soon and i predict ALOT of traffic. For scenarios sake, lets say i will have 1m uniques a day. The data will be static but i need to have includes aswell I will only include a html page inside another html page, nothing dynamic (i have my reasons that i wont disclose to keep this simple) My question is, performance wise what is faster or

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  • What's faster to parse lots of data (5Mb): eval or json?

    - by AlfaTeK
    I want to get, via ajax, a collection of data objects and parse them into JS data. Currently I have 2 choices: - Server returns valid javascript code and then I eval it. - Server returns JSON object and then I eval the json object What is the fastest of these in Firefox? (I only care about the "parsing" performance, not server or data transfer)

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  • SSL with external static content server

    - by SirMoreno
    I have a .Net web application that for performance issues gets all the static data (CSS, Images, JS) from an external server that is on different location and different hosting company. I want to enable SSL on my site without the users getting a message: "Page contains both secure and insecure elements" Does this means I’ll have to get two SSL Certificates one for each server? If I want the users to continue getting the static content from the external server what other options do I have? Thanks.

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  • Drawbacks of Dynamic Query in Sqlserver 2005 ?

    - by KuldipMCA
    I have using the many dynamic Query in my database for the procedures because my filter is not fix so i have taken @filter as parameter and pass in the procedure. Declare @query as varchar(8000) Declare @Filter as varchar(1000) set @query = 'Select * from Person.Address where 1=1 and ' + @Filter exec(@query) Like that my filter contain any Field from the table for comparison. It will affect my performance or not ? is there any alternate way to achieve this type of things

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  • OpenMP implementations in VC++ 2008, 2010

    - by John
    Depending on implementation, OMP can be quite useful to parallelize fairly arbitrary bits of code - e.g a parallel section inside a method that calls two independent methods - or it can be bad. It depends on how threads are created/cached, I think. How does the VC++ 2008 implementation work? And is the 2010 implementation significantly different in terms of features and performance/flexibility?

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  • What is the equivalent of REGEXP_SUBSTR in mysql?

    - by KandadaBoggu
    I want to extract a word from a string column of a table. description =========================== abc order_id: 2 xxxx yyy aa mmm order_id: 3 nn kk yw Expected result set order_id =========================== 2 3 Table will at most have 100 rows, text length is ~256 char and column always has one order_id present. So performance is not an issue. In Oracle, I can use REGEXP_SUBSTR for this problem. How would I solve this in MySQL?

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  • Investment advice data dump analysis

    - by portoalet
    For my year-end pet project, I'd like to analyze investment advices and their correlation to the stock market performance. The problem is, where do I get the dump of investment advice data (free) ? something like stackoverflow.com data dump will be nice. Or maybe it's easier to do distributed crawling and crawl the public finance webpages for investment advices? Investment advice is buy/sell advice for stocks/forex, issued by institution/investment advisor.

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