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  • Performance cost of running Ubuntu from external hard drive

    - by dandan78
    A friend just complained to me about Ubuntu being slow. Although I've noticed a certain lack of snappiness with Linux vs Windows in the past, I really can't say I've had much to grumble about with the recent distributions of Ubuntu. That said, his objections seem much worse than the ones I used to have and I know that his current setup is significantly more powerful than my laptop. And then it turned out he is running Ubuntu off an external HDD hooked up via USB2.0. The HD enclosure is USB3.0 but apparently he can't manage to get it to boot on USB3.0 so he switched to one of the USB2.0 ports or whatever and that works, albeit not very well. Now I would expect USB to add some overhead to communication between the computer and the HDD; SATA is after all designed to get the maximum out of a hard drive, whereas USB is, well, universal. What are your expreriences with booting off external HDDs? Edit: Does anybody know just how much of a slowdown can be expected?

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  • Python: win32console import problem

    - by David
    I want to run wexpect (the windows port of pexpect) on my Windows 7 64-bit machine. I am getting the following error: C:\Program Files (x86)\wexpect\build\libwexpect.py Traceback (most recent call last): File "C:\Program Files (x86)\wexpect\build\lib\wexpect.py", line 97, in raise ImportError(str(e) + "This package was intended for Windows like operating systems.") ImportError: No module named win32console This package requires the win32 python packages.This package was intended for Windows like operatin g systems. In the code it is failing on the following line: from win32console import * I am using Python 2.6.4. I cannot figure out how to install win32console.

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  • Hibernate configuration files not found by Axis2

    - by DanJo519
    I am writing a web service to be deployed on Tomcat using Axis2. I am using Hibernate3 to persist data between the web service and a MySQL database. When running the application through by IDE, the method I am exposing through Axis2 works as intended, however when I deploy the .aar to Tomcat, I receive a SOAP Error claiming that hibernate.cfg.xml cannot be found. However, inside the .aar, I clearly see that all the configuration file and all the mapping files are included. I have determined a workaround: If I place the resulting files from the Netbeans build/class folder into the axis2/WEB-INF/class folder, then the application works as expected. My question, then, is is there a better way to deploy my application so that Axis2 will pick up the configuration and mapping files through the deployed .aar without my manually having to copy the contents of the build/class folder into the axis2/WEB-INF/class folder?

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  • Tech Ed New Orleans&ndash; The Goods

    Just returned from a fantastic Tech Ed, what a great event this year as it was sold out and jammed with lots of great sessions, hands-on-labs, and events to participate innot to mention New Orleans is lots of fun. I promised a blog post for my session, and here it is. My session was WCF 4 Made Easy with .NET Framework 4 and Windows Server AppFabric. The highlights from the talk are as follows: With WCF 4 and VS 2010 you can finally be immediately productive when you build WCF services. Just focus...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Integrating GSL onto iPhone Xcode

    - by zeroinverse
    I have been trying to integrate GSL (Gnu Scientific Library) into an iPhone project using Xcode. The challenge is GSL has all the modules in different folders, yet when their header files are reference, they often reference instead of or . At least with I could use Xcode's recursive header file search to find it. But with , basically file not found. Does anyone have an easy way to address the hierarchical GSL structure to compile into Xcode? I can do it the tedious way of fixing all the #INCLUDE lines but hoping there is a better alternative. This way, I can more easily update GSL when changes are made by the community. NOTE: I found Xcode needs to find the right header file locations (make sure to adjust your TARGET Build settings, not just your Project Build settings).

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  • #pragma init and #pragma fini using gcc compiler on linux

    - by Josh
    I would like to build some code which calls some code on loadup of the shared library. I thought i would do it like this: #pragma init(my_init) static void my_init () { //do-something } int add (int a,int b) { return a+b; } So when i build that code with gcc -fPIC -g -c -Wall tt.c It returns gcc -fPIC -g -c -Wall tt.c tt.c:2: warning: ignoring #pragma init tt.c:4: warning: ‘my_init’ defined but not used So its warning my #pragmas. I tried this in real code and my code aborted because a function hadn't been called in the pragma section because it was ignored. How do i get gcc to use these #pragma init and fini statemets?

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  • Why prefer a wildcard to a type discriminator in a Java API (Re: Effective Java)

    - by Michael Campbell
    In the generics section of Bloch's Effective Java (which handily is the "free" chapter available to all: http://java.sun.com/docs/books/effective/generics.pdf), he says: If a type parameter appears only once in a method declaration, replace it with a wildcard. (See page 31-33 of that pdf) The signature in question is: public static void swap(List<?> list, int i, int j) vs public static void swap(List<E> list, int i, int j) And then proceeds to use a static private "helper" function with an actual type parameter to perform the work. The helper function signature is EXACTLY that of the second option. Why is the wildcard preferable, since you need to NOT use a wildcard to get the work done anyway? I understand that in this case since he's modifying the List and you can't add to a collection with an unbounded wildcard, so why use it at all?

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  • Extending windows based installer to other Operating Systems

    - by Pia
    I have build an installer using NSIS. And now I want to extend it to Solaris and Linux thorugh WINE. But I wanna know few things here- Is WINE flavour dependent? I mean are there different packages for different Linux versions? Whats if my Installer creates some SQL or Oracle database? Will this feature be also supported by WINE? Is there any tool which can be used to build installer which is platform independent?

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  • How to stop nant exec task putting ( ) around command line

    - by Sam
    I have looked through the nant documentation and sourceforge faq and can't find the answer to this question. The exec task in nant puts ( ) around the command line parameters it generates, so for example this task below would generate: mallow ( -1 ) <exec program="${build.tools.wix}\mallow.exe" workingdir="${build.out.xxx}"> <arg value="-1" /> </exec> The other open source tool I'm using - mallow - cannot handle this. Does anyone know of a way to stop nant putting the ( ) around the arguments? Thanks.

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  • How to prevent a globally overridden "new" operator from being linked in from external library

    - by mprudhom
    In our iPhone XCode 3.2.1 project, we're linking in 2 external static C++ libraries, libBlue.a and libGreen.a. libBlue.a globally overrides the "new" operator for it's own memory management. However, when we build our project, libGreen.a winds up using libBlue's new operator, which results in a crash (presumably because libBlue.a is making assumptions about the kinds of structures being allocated). Both libBlue.a and libGreen.a are provided by 3rd parties, so we can't change any of their source code or build options. When we remove libBlue.a from the project, libGreen.a doesn't have any issues. However, no amount of shuffling the linking order of the libraries seems to fix the problem, nor does any experimentation with the various linking flags. Is there some way to tell XCode to tell the linker to "have libGreen's use of the new operator use the standard C++ new operator rather than the one redefined by libBlue"?

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  • Is there any performance difference between Debug and Release?

    - by Lazlo
    I'm using MySql Connector .NET to load an account and transfer it to the client. This operation is rather intensive, considering the child elements of the account to load. In Debug mode, it takes, at most, 1 second to load the account. The average would be 500ms. In Release mode, it takes from 1 to 4 seconds to load the account. The average would be 1500ms. Since there is no #if DEBUG directive or the like in my code, I'm wondering where the difference is coming from. Is there a project build option I could change? Or does it have to do with MySql Connector .NET that would have different behaviors depending on the build mode?

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  • Tell Visual Studio 2012 UI Designers What to Fix

    - by Ken Cox [MVP]
    If you hate the default interface themes in Visual Studio 2012 as much as I do, you have another outlet to vent. The UI designers have posted a survey where you can tell them how distracting and annoying you find the gray themes and black icons. You even get to comment on the (fixable) all-caps issue. The UI people didn’t listen much to the (largely hostile) developer feedback during the product design – or more likely were constrained by some edict from on high - but seem more willing now to create decent themes for updates. Here’s the Visual Studio 2012 Visual Theme survey URL https://illumeweb.smdisp.net/collector/Survey.ashx?Name=VS2012ThemeSurvey VS 2012 is a great product hampered by a lousy UI. If I could have a Visual Studio 2010 theme (with its coloured icons) I’d be more than satisfied with the 2012 release.

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  • Builder pattern and singletons

    - by Berryl
    Does anyone have any links to some code they like that shows a good example of this in c#? As an example of bad code, here is what a builder I have now looks like. I'm trying to have a way to keep the flexibility of the builder pattern but not rebuild the properties. Cheers, Berryl public abstract class ActivityBuilder { public abstract ActivityBuilder Build(); public bool IsBuilt { get; protected set; } public IEnumerable<Project> Projects { get { if(_projects==null) { Build(); } return _projects; } } protected IEnumerable<Project> _projects; // .. other properties }

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  • How to debug Java code when using ANT script in Eclipse

    - by zengr
    Hi, I have a java class and I need to debug it (put breakpoints and continue using F6). I am using ANT script to init, build, deploy and run the code. I am using: <javac srcdir="${src.dir}" destdir="${classes.dir}" debug="true" debuglevel="lines,vars,source"> .......... </javac> But when I place the breakpoint in a line in my foo.java class and I run the ant script (the run part, Right Click on run--Debug As--Ant Build), Eclipse does not stop at that line of code. What am I missing out?!

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  • Better way to write this regex to match multi-ordered property list?

    - by Andrew Philips
    I've been whacking on this regex for a while, trying to build something that can pick out multiple ordered property values (DTSTART, DTEND, SUMMARY) from an .ics file. I have other options (like reading one line at a time and scanning), but wanted to build a single regex that can handle the whole thing. SAMPLE PERL # There has got to be a better way... my $x1 = '(?:^DTSTART[^\:]*:(?<dts>.*?)$)'; my $x2 = '(?:^DTEND[^\:]*:(?<dte>.*?)$)'; my $x3 = '(?:^SUMMARY[^\:]*:(?<dtn>.*?)$)'; my $fmt = "$x1.*$x2.*$x3|$x1.*$x3.*$x2|$x2.*$x1.*$x3|$x2.*$x3.*$x1|$x3.*$x1.*$x2|$x3.*$x2.*$x1"; if ($evts[1] =~ /$fmt/smo) { printf "lines:\n==>\n%s\n==>\n%s\n==>\n%s\n", $+{dts}, $+{dte}, $+{dtn}; } else { print "Failed.\n"; } SAMPLE DATA BEGIN:VEVENT UID:0A5ECBC3-CAFB-4CCE-91E3-247DF6C6652A TRANSP:OPAQUE SUMMARY:Gandalf_flinger1 DTEND:20071127T170005 DTSTART,lang=en_us:20071127T103000 DTSTAMP:20100325T003424Z X-APPLE-EWS-BUSYSTATUS:BUSY SEQUENCE:0 END:VEVENT SAMPLE OUTPUT lines: == 20071127T103000 == 20071127T170005 == Gandalf_flinger1

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  • PHP-based LaTeX parser -- where to begin?

    - by Alex Basson
    The project: I want to build a LaTeX-to-MathML translator in PHP. Why? Because I'm a mathematician, and I want to publish math on my Drupal site. It doesn't have to translate all of LaTeX, since the basic document-level stuff is ably handled by the CMS and wouldn't be written in LaTeX to begin with; it just has to translate math written in LaTeX into math written in MathML. Although I feel as though I've done my due diligence, this doesn't seem to exist already. Maybe I'm wrong---if you know of something that would serve this purpose, by all means let me know, and thank you in advance. But assuming it doesn't exist, I guess I have to go write it myself. Here's the thing, though: I've never done anything this ambitious. I don't really know where to begin. I've used PHP for years, but just to do the standard "build a CMS with PHP and MySQL"-type of stuff. I've never attempted anything as seemingly sophisticated as translation from one language to another. I'm just dumb enough to consider doing it with regex---after all, LaTeX is a much more formal language, and it doesn't allow for nearly the kinds of pathological edge-cases, as say, HTML. But on the other hand, I'm just smart enough to realize this is probably a terrible idea: now I have two problems, and I sure don't want to end up like this guy. So if that's not the way to go (right?), what is? How should I start thinking about this problem? Am I essentially writing a LaTeX compiler in PHP, and if so, what do I need to know to do that (like, should I just go read the Purple Dragon book first?)? I'm both really excited and pretty intimidated by the prospect of this project, but hey, this is how we all learn to be programmers, right? If something we need doesn't exist, we go and build it, necessity is the mother of... you get the point. Tremendous thanks to everyone in advance for any and all guidance you can offer.

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  • Populating an association with children in factory_girl

    - by Craig Walker
    I have a model Foo that has_many 'Bar'. I have a factory_girl factory for each of these objects. The factory for Bar has an association to Foo; it will instantiate a Foo when it creates the Bar. I'd like a Factory that creates a Foo that contains a Bar. Ideally this Bar would be created through the :bar factory, and respect the build strategy (create/build) used to create the Foo. I know I could just call the :bar factory and then grab the Foo reference from the new Bar. I'd like to avoid this; in my test case, the important object is Foo; calling the Bar factory seems a bit circuitous. Also, I can see the need for a Foo with multiple Bars. Is this possible in factory_girl? How do you define this relationship in the parent?

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  • ASP.NET MVC 2.0: How to read querystring value

    - by Shyju
    I am trying to build a small ASP.NET MVC 2 application.I have a controller class with the below method in it public ActionResult Index() { TestMvc.Models.PersonalInformation objPerson = new TestMvc.Models.PersonalInformation(); objPerson.FirstName = "Shyju"; objPerson.LastName = "K"; objPerson.EmailId="[email protected]"; return View(objPerson); } And when the page (View) being called, i can see this data there as my view has these data's displaying. Now i want to know how can i pass a query string in the url and use that id to build the PersonalInformation object.Hoe can i read the querystring value ? Where to read ? I want the quesrtstring to be like http://www.sitename/user/4234 where 4234 is the user id

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  • Few specific questions on how games are developed

    - by russ
    When it comes to programming games from the old school sega games like sonic to indie games or angry birds or even to more advance games like Diablo, how exactly is level design done? As in, are the levels sometimes designed straight out of code in an IDE? Or do they create a visual level design editor where things can be placed at the click of a mouse button? I'm imagining old school games or very simple ones like indies are done via code, where extremely complicated ones require a visual editor. Is this correct? Also, when it comes to libraries like SDL or XNA, how often are these used rather than just utilizing OpenGL or DirectX? What about creating your own game engine vs utilizing one already made? Do most use already built engines? This question is directed toward the whole gaming spectrum of indie/big game development. Thanks.

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  • MSBuild - setting a reference path

    - by Ryan
    I have several assemblies my project is dependant upon. These are stored in the Project's directory under the "Dependencies" folder. So something like this. Solution - Project - Dependancies FunkyAssembly.dll - bin - Debug - Release SomeCode.cs I've referenced FunkyAssembly.dll using Browse and in project.csproj I see <Reference Include="FunkyAssembly"> <HintPath>Dependancies\FunkyAssembly.dll</HintPath> </Reference> So far so good - except after a release build FunkyAssembly.dll is copied to the Release directory (not a problem in itself) but then future debug builds will reference this copy rather than the copy in Dependencies. You can see this if you at Path in the reference properties. This means that if Dependencies\FunkyAssembly.dll is updated the build won't pick it up as its referencing the old copy in bin/Release. Any way to FORCE the damn thing to pick up Dependencies\FunkyAssembly.dll rather than HINT?

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  • Missing Master Pages when using Web Deployment Project

    - by Kumar
    I am trying to deploy an ASP.NET 3.5 Web Application to my production server and I am using the Web Deployment Project for this purpose. I have a folder named MasterPages in the root of the application which contains all the master page files. When I build this project in the release mode and deploy it on to the server I am getting the below error message: Directory 'C:\inetpub\wwwroot\MasterPages' does not exist. Failed to start monitoring file changes. I am using ASP.NET AJAX and the ToolkitScriptManager is on the master pages. I have noticed that the MasterPages folder is missing from the release build. Can anyone help me with this?

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  • Maven mercurial extension constantly fails

    - by TheLQ
    After 2+ hours I was able to get the maven-scm-provider-hg extension (for pushing to mercurial repos from Maven) semi working, meaning that it was executing commands instead of just giving errors. However I think I've run into a wall with this error [INFO] [deploy:deploy {execution: default-deploy}] [INFO] Retrieving previous build number from pircbotx.googlecode.com [INFO] Removing C:\DOCUME~1\Owner\LOCALS~1\Temp\wagon-scm1210107000.checkout\pir cbotx\pircbotx\1.3-SNAPSHOT [INFO] EXECUTING: cmd.exe /X /C "hg clone -r tip https://*SNIP*@site.pircbotx.googlecode.com/hg/maven2/snapshots/pircbotx/pircbotx/1.3-SNAPSHOT C:\DOCUME~1\Owner\LOCALS~1\Temp\wagon-scm1210107000.checkout\pircbotx\pircbotx\1.3-SNAPSHOT" [INFO] EXECUTING: cmd.exe /X /C "hg locate" [INFO] repository metadata for: 'snapshot pircbotx:pircbotx:1.3-SNAPSHOT' could not be found on repository: pircbotx.googlecode.com, so will be created Uploading: scm:hg:https://site.pircbotx.googlecode.com/hg/maven2/snapshots/pircbotx/pircbotx/1.3-SNAPSHOT/pircbotx-1.3-SNAPSHOT.jar [INFO] ------------------------------------------------------------------------ [ERROR] BUILD ERROR [INFO] ------------------------------------------------------------------------ [INFO] Error deploying artifact: Error listing repository: No such command 'list'. What on earth would cause that error? I'm on a Windows box, so any commands that aren't commands give "'list' is not recognized as an internal or external command...", not "No such command 'list'." POM <build> <extensions> <extension> <groupId>org.apache.maven.scm</groupId> <artifactId>maven-scm-provider-hg</artifactId> <version>1.4</version> </extension> <extension> <groupId>org.apache.maven.wagon</groupId> <artifactId>wagon-scm</artifactId> <version>1.0-beta-7</version> </extension> </extensions> ... <distributionManagement> <snapshotRepository> <id>pircbotx.googlecode.com</id> <name>PircBotX Site</name> <url>scm:hg:https://site.pircbotx.googlecode.com/hg/maven2/snapshots</url> <uniqueVersion>false</uniqueVersion> </snapshotRepository> </distributionManagement> Mercurial version W:\programming\pircbot-hg>hg version Mercurial Distributed SCM (version 1.7.2) Any suggestions?

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  • How do you do ASP.Net performance testing?

    - by John
    Our team is in need of a performance testing process. We use ASP.Net (both web forms and MVC) and performance testing is not currently built into our projects. We occasionally do some ad-hoc analysis, such as checking the load on the server or SQL Server Profiler, but we don't have a true beginning to end, built into the project performance testing methodology. Where is a good place to start? I'm interested in both: Process - General knowledge, including best practices. Essential list of tools. I'm aware of a few tools, such as what's built into the pricier versions of VS 2010 and JetBrains products, though I haven't used them.

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