Search Results

Search found 48589 results on 1944 pages for 'system requirements'.

Page 497/1944 | < Previous Page | 493 494 495 496 497 498 499 500 501 502 503 504  | Next Page >

  • git in non-distributed, independent, lone programming ...best practice(s) ?

    - by explorest
    I am currently studying the git documentation to get a hang of distributed version control workflow and use of git command line. I want to first start using git with small, personal, pet projects so to gain experience before doing it on large scale (i.e., bigger projects, team dev). What areas of the git system should I, as a lone player, devote most of my study time to... what parts should I leave for the larger scale work later on. In other words what features of the git system will fully be grasped in team work only, and therefore should not be too involved with at an individual level?

    Read the article

  • Understanding Unity3d physics: where is the force applied?

    - by Heisenbug
    I'm trying to understand which is the right way to apply forces to a RigidBody. I noticed that there are AddForce and AddRelativeForce methods, one applied in world space coordinate system meanwhile the other in the local space. The thing that I do not understand is the following: usually in physics library (es. Bullet) we can specify the force vector and also the force application point. How can I do this in Unity? Is it possible to apply a force vector in a specific point relative to the given RigidBody coordinate system? Where does AddForce apply the force?

    Read the article

  • Is there a cross-platform special directory I can use for game save files?

    - by Suds
    I'm developing with LWJGL and Java on a Windows 7 laptop. I've successfully set up saving to the %appdata%\gamename\saves\ or long form c:\users\user\appdata\roaming\gamename\saves\ folder by using File dir = new File(System.getenv("APPDATA") + "\\gamename\\saves\\");. I have hobbyist level experience with Linux, and zero experience with OSX. My game will be fully cross platform. Is System.getenv("APPDATA"); cross platform? If so, where does it point to on Linux or OSX? Is there a best practices alternative that I should use?

    Read the article

  • What constitutes proper use of threads in programming?

    - by Smith
    I am tired of hearing people recommend that you should use only one thread per process, while many programs use up to 100 per process! take for example some common programs vb.net ide uses about 25 thread when not debugging System uses about 100 chrome uses about 19 Avira uses more than about 50 Any time I post a thread related question, I am reminded almost every time that I should not use more that one thread per process, and all the programs I mention above are ruining on my system with a single processor. What constitutes proper use of threads in programming? Please make general comment, but I'd prefer .NET framework thanks EDIT changed processor to process

    Read the article

  • Why didn't virtual ubuntu halts clearly?

    - by Dims
    I am running Ubuntu 11.10 on Oracle Virtual Box 4.2.4 under Windows 7 x64. To stop guest system I often use halt command which works fine on physical machines. But it looks hanging on virtual ubunty. After halt it starts shutting down, Ubuntu logo appears with dots below flashing. After some cycles it just stops. VM manager does not feel machine is gone, so I need to power off it. P.S. The system stops Ok if I shutdown it via GUI.

    Read the article

  • disable shutdown/suspend if there is other user logged in via ssh

    - by Denwerko
    I remember that in versions of ubuntu around 9.04 was possible to disable user to shutdown ( and maybe suspend too ) system if there was other user logged in.Something like policykit or similar. Is it possible to do in 11.04 ? Thanks edit: if someone needs ( for own risk ), little change in /usr/lib/pm-utils/bin/pm-action will allow user to suspend machine if he is only user logged in or when user will run sudo pm-suspend. Probably not best piece of code, but for now works. diff -r 805887c5c0f6 pm-action --- a/pm-action Wed Jun 29 23:32:01 2011 +0200 +++ b/pm-action Wed Jun 29 23:37:23 2011 +0200 @@ -47,6 +47,14 @@ exit 1 fi +if [ "$(id -u )" == 0 -o `w -h | cut -f 1 -d " " | sort | uniq | wc -l` -eq 1 ]; then + echo "either youre root or root isnt here and youre only user, continuing" 1&2 + else + echo "Not suspending, root is here or there is more users" 1&2 + exit 2 + fi + + remove_suspend_lock() { release_lock "${STASHNAME}.lock" Question still stands, is it possible to forbid shutdown or suspend when there is more than one user logged in ( without rewriting system file )?

    Read the article

  • SQLIO Writes

    - by Grant Fritchey
    SQLIO is a fantastic utility for testing the abilities of the disks in your system. It has a very unfortunate name though, since it's not really a SQL Server testing utility at all. It really is a disk utility. They ought to call it DiskIO because they'd get more people using I think. Anyway, branding is not the point of this blog post. Writes are the point of this blog post. SQLIO works by slamming your disk. It performs as mean reads as it can or it performs as many writes as it can depending on how you've configured your tests. There are much smarter people than me who will get into all the various types of tests you should run. I'd suggest reading a bit of what Jonathan Kehayias (blog|twitter) has to say or wade into Denny Cherry's (blog|twitter) work. They're going to do a better job than I can describing all the benefits and mechanisms around using this excellent piece of software. My concerns are very focused. I needed to set up a series of tests to see how well our product SQL Storage Compress worked. I wanted to know the effects it would have on a system, the disk for sure, but also memory and CPU. How to stress the system? SQLIO of course. But when I set it up and ran it, following the documentation that comes with it, I was seeing better than 99% compression on the files. Don't get me wrong. Our product is magnificent, wonderful, all things great and beautiful, gets you coffee in the morning and is made mostly from bacon. But 99% compression. No, it's not that good. So what's up? Well, it's the configuration. The default mechanism is to load up a file, something large that will overwhelm your disk cache. You're instructed to load the file with a character 0x0. I never got a computer science degree. I went to film school. Because of this, I didn't memorize ASCII tables so when I saw this, I thought it was zero's or something. Nope. It's NULL. That's right, you're making a very large file, but you're filling it with NULL values. That's actually ok when all you're testing is the disk sub-system. But, when you want to test a compression and decompression, that can be an issue. I got around this fairly quickly. Instead of generating a file filled with NULL values, I just copied a database file for my tests. And to test it with SQL Storage Compress, I used a database file that had already been run through compression (about 40% compression on that file if you're interested). Now the reads were taken care of. I am seeing very realistic performance from decompressing the information for reads through SQLIO. But what about writes? Well, the issue is, what does SQLIO write? I don't have access to the code. But I do have access to the results. I did two different tests, just to be sure of what I was seeing. First test, use the .DAT file as described in the documentation. I opened the .DAT file after I was done with SQLIO, using WordPad. Guess what? It's a giant file full of air. SQLIO writes NULL values. What does that do to compression? I did the test again on a copy of an uncompressed database file. Then I ran the original and the SQLIO modified copy through ZIP to see what happened. I got better than 99% compression out of the SQLIO modified file (original file of 624,896kb went to 275,871kb compressed, after SQLIO it went to 608kb compressed). So, what does SQLIO write? It writes air. If you're trying to test it with compression or maybe some other type of file storage mechanism like dedupe, you need to know this because your tests really won't be valid. Should I find some other mechanism for testing? Yeah, if all I'm interested in is establishing performance to my own satisfaction, yes. But, I want to be able to compare my results with other people's results and we all need to be using the same tool in order for that to happen. SQLIO is the common mechanism that most people I know use to establish disk performance behavior. It'd be better if we could get SQLIO to do writes in some other fashion. Oh, and before I go, I get to brag a bit. Measuring IOPS, SQL Storage Compress outperforms my disk alone by about 30%.

    Read the article

  • Common practice in handling bounce message

    - by foodil
    At now I mainly create a mail account separately (with different domain name [email protected]) and i add this mail as one return path. So the bounce message will only go to that mailbox and i parse the mail message one by one to check the failure receipent and the error code, then i convert the error code to the actual error message. Finally, the error message and the fail receipent's mail are post to my system and let my system user check the bounce information. Is it a common practice? Since i am worry about the mail other from bounce message have sent to my mail box, that would be a disaster if i parse them without filter them out, but how can i filter out between bounce message and normal mail? Thank you for any kind of help.

    Read the article

  • Why don't I have the option ''Install Ubuntu alongside with them''

    - by almqgh
    Why dont I have this option? here are my disk sudo fdisk -l Disk /dev/sda: 640.1 GB, 640135028736 bytes 255 heads, 63 sectors/track, 77825 cylinders, total 1250263728 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x5b53cc54 Device Boot Start End Blocks Id System /dev/sda1 * 2048 409599 203776 7 HPFS/NTFS/exFAT /dev/sda2 409600 1153767021 576678711 7 HPFS/NTFS/exFAT /dev/sda3 1216962560 1250050047 16543744 7 HPFS/NTFS/exFAT /dev/sda4 1250050048 1250261679 105816 c W95 FAT32 (LBA) Disk /dev/sdb: 4005 MB, 4005527552 bytes 32 heads, 63 sectors/track, 3880 cylinders, total 7823296 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x20d8782d Device Boot Start End Blocks Id System /dev/sdb1 * 63 7822079 3911008+ c W95 FAT32 (LBA)

    Read the article

  • How do I get Paypal or a merchant account for a marketplace style web site?

    - by Brett G
    I'm having trouble getting approved for a merchant account for my website. Basically I have expert users and users. Expert users provide a service through my website which they set their own rates. Users purchase the services, then pay me, I give 90% to the expert users. I have been told this is factoring.. Is the way around this, a system like freelancer.com does? Where users deposit money into their freelancer account, then pay for the services they won? What are the negatives to this system? What about sites like 99designs? They accept CC payments and then pay the winning designer. How are some sites doing this but I'm having so much trouble getting approved?

    Read the article

  • HTG Explains: How Antivirus Software Works

    - by Chris Hoffman
    Antivirus programs are powerful pieces of software that are essential on Windows computers. If you’ve ever wondered how antivirus programs detect viruses, what they’re doing on your computer, and whether you need to perform regular system scans yourself, read on. An antivirus program is an essential part of a multi-layered security strategy – even if you’re a smart computer user, the constant stream of vulnerabilities for browsers, plug-ins, and the Windows operating system itself make antivirus protection important. 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

    Read the article

  • Flowchart for solving programming problems

    - by nurne
    I noticed that every developer implements a somewhat different flowchart for solving programming problems. By flowchart I mean a defined system of techniques that the developer goes through in a certain sequence, trying to solve the problem at hand. Some examples for techniques: Google "how to..." or "... tutorial". Search the java/msdn/apple/etc API doc for the specific class or method. Search in stack overflow the exact problem with some tags like [iphone]/[java] etc. Take a nap and let the subconscious work. Debug. Draw the algorithm or system. Google the logged error message. Ask a colleague or manager. Ask a new question in stack overflow. From your experience, what is the best flowchart for solving a programming problem?

    Read the article

  • Is it possible to allow the user to access the 'Volumes' without asking the Administrator's password?

    - by Tom
    Am the administrator of my Ubuntu system. Recently I added a new user account. But when ever the user tries to access or open the 'Volumes'(Drives where movies, songs and other files are stored) it asks for the Administrator's password. I created the user account to my other family members and I don't want to tell them my password. So is it possible to allow them to access the Volumes without asking Administrator's password ? UPDATE : Ubuntu was installed alongside Windows in my system. I will provide a screenshot of the Volume details -

    Read the article

  • Mounting ntfs windows drive and retrieving its data

    - by Sarmad
    Hej, A friend gave me his laptop which had problems with booting (windows). He claims his data on the drive to be retrieved and saved. I have Linux Ubuntu Server to mount its hard drive and check the contents. Now when I have mounted it I see only boot.sdi, sources, System Volume Information I have no idea why is it so? How can I access and retrieve the contents? results of sudo fdisk -l are as follows: Enhet Start Början Slut Block Id System /dev/sdb1 2048 3074047 1536000 27 Hidden NTFS WinRE /dev/sdb2 * 3074048 246945791 121935872 7 HPFS/NTFS/exFAT /dev/sdb3 246945792 416354295 84704252 7 HPFS/NTFS/exFAT /dev/sdb4 416354304 488394751 36020224 f W95 Utökad (LBA) /dev/sdb5 416356352 488394751 36019200 7 HPFS/NTFS/exFAT Please help me in this regard.

    Read the article

  • Playing with F#

    - by mroberts
    Project Euler is a awesome site.   When working with a new language it can be tricky to find problems that need solving, that are more complex than "Hello World" and simpler than a full blown application. Project Euler gives use just that, cool and thought provoking problems that usually don't take days to solve.  I've solved a number of questions with C# and some with Java.  BTW, I used Java because it had BigInteger support before .Net. A couple weeks ago, back when winter had a firm grip on Columbus, OH, I began playing (researching) with F#.  I began with Problem #1 from Project Euler.  I started by looking at my solution in C#. Here is my solution in C#. 1: using System; 2: using System.Collections.Generic; 3:   4: namespace Problem001 5: { 6: class Program 7: { 8: static void Main(string[] args) 9: { 10: List<int> values = new List<int>(); 11:   12: for (int i = 1; i < 1000; i++) 13: { 14: if (i % 3 == 0 || i % 5 == 0) 15: values.Add(i); 16: } 17: int total = 0; 18:   19: values.ForEach(v => total += v); 20:   21: Console.WriteLine(total); 22: Console.ReadKey(); 23: } 24: } 25: }   Now, after much tweaking and learning, here is my solution in F#.   1: open System 2:   3: let calc n = 4: [1..n] 5: |> List.map (fun x -> if (x % 3 = 0 || x % 5 = 0) then x else 0) 6: |> List.sum 7:   8: let main() = 9: calc 999 10: |> printfn "result = %d" 11: Console.ReadKey(true) |> ignore 12:   13: main() Just this little example highlights some cool things about F#. Type inference. F# infers the type of a value.  In the C# code above we declare a number of variables, the list, and a couple ints.  F# does not require this, it infers the calc (a function) accepts a int and returns a int. Great built in functionality for Lists.  List.map for example. BTW, I don’t think I’m spilling the beans by giving away the code for Problem 1.  It by far is the easiest question, IMHO, solved by 92,000+ people. Next I’ll look into writing a class library with F#.

    Read the article

  • Oracle University Nouveaux cours (Week 12)

    - by swalker
    Parmi les nouveautés d’Oracle Université de ce mois-ci, vous trouverez : Database Oracle Enterprise Manager Cloud Control 12c: Install & Upgrade (2 days) Using Oracle Enterprise Manager Cloud Control 12c Introduction to Big Data (1 day seminar) Introduction to Oracle NoSQL Database (1 day seminar) Oracle Database Administration I: Certification Exam Preparation Seminar (Training On Demand) Development Tools Oracle Database SQL: Certification Exam Preparation Seminar (Training On Demand) MySQL MySQL for Beginners (4 days) Fusion Middleware Oracle Service Bus 11g: System Admin, Design & Integrate Accelerated (5 days) Oracle WebLogic Server 11g: Administration Essentials (Training On Demand) Oracle Solaris Developing and Deploying Applications on Oracle Solaris 11 (3 days) Fusion Applications Fusion Applications: Installation and Administration (4 days) E-Business Suite R12.x Oracle E-Business Suite Essentials for Implementers (Training On Demand) R12.x Implement Oracle Workflow (Training On Demand) R12.x Oracle Applications System Administrator Fundamentals (Training On Demand) PeopleSoft PeopleSoft PeopleTools I Rel 8.50 (Training On Demand) Contacter l’équipe locale d’Oracle University pour toute information et dates de cours. Restez connecté à Oracle University : LinkedIn OracleMix Twitter Facebook Google+

    Read the article

  • Strategy to use two different measurement systems in software

    - by Dennis
    I have an application that needs to accept and output values in both US Custom Units and Metric system. Right now the conversion and input and output is a mess. You can only enter in US system, but you can choose the output to be US or Metric, and the code to do the conversions is everywhere. So I want to organize this and put together some simple rules. So I came up with this: Rules user can enter values in either US or Metric, and User Interface will take care of marking this properly All units internally will be stored as US, since the majority of the system already has most of the data stored like that and depends on this. It shouldn't matter I suppose as long as you don't mix unit. All output will be in US or Metric, depending on user selection/choice/preference. In theory this sounds great and seems like a solution. However, one little problem I came across is this: There is some data stored in code or in the database that already returns data like this: 4 x 13/16" screws, which means "four times screws". I need the to be in either US or Metric. Where exactly do I put the conversion code for doing the conversion for this unit? The above already mixing presentation and data, but the data for the field I need to populate is that whole string. I can certainly split it up into the number 4, the 13/16", and the " x " and the " screws", but the question remains... where do I put the conversion code? Different Locations for Conversion Routines 1) Right now the string is in a class where it's produced. I can put conversion code right into that class and it may be a good solution. Except then, I want to be consistent so I will be putting conversion procedures everywhere in the code at-data-source, or right after reading it from the database. The problem though is I think that my code will have to deal with two systems, all throughout the codebase after this, should I do this. 2) According to the rules, my idea was to put it in the view script, aka last change to modify it before it is shown to the user. And it may be the right thing to do, but then it strikes me it may not always be the best solution. (First, it complicates the view script a tad, second, I need to do more work on the data side to split things up more, or do extra parsing, such as in my case above). 3) Another solution is to do this somewhere in the data prep step before the view, aka somewhere in the middle, before the view, but after the data-source. This strikes me as messy and that could be the reason why my codebase is in such a mess right now. It seems that there is no best solution. What do I do?

    Read the article

  • Empathy 3.6.0 requires reauthorisation to Windows Live on every reboot

    - by Allu2
    I've been testing Ubuntu 12.10 beta2 and the only problem I've faced has been that with Windows Live Messenger(a.k.a MSN) After I have added Windows Live in the online-accounts in system settings, empathy works fine and connects to Windows Live Messenger with no problems until I reboot my system. After rebooting and logging in, when empathy connects to services it shows me message "Windows Live account requires authorisation" next to it is a button that takes me back to online-accounts where i can see the authorized Windows Live. So far the only way to get MSN work again has been to remove the Windows Live authorisation and add it again, which makes it work till the next time i close my computer. How could i make empathy to remember the authorisation to Windows Live

    Read the article

  • Pointer problem on external monitor

    - by Herby Pepper
    Pointer looks and work fine on laptop but when I connect external monitor it appears there as a shaking, square shape. Videos are not showing either. my laptop hp 2133: Graphic card: VIA Technologies, Inc. CN896/VN896/P4M900, Chrome 9 HC. System: Lubuntu 12.04 I think it is graphic problem but can't find drivers for my card and system. I do have xserver-xorg-video-openchrome and disper installed. I did not have that problem with Lubuntu 11.10. My problem is a bit like : Mouse pointer strange problem but it was not solved so I decided to post my question.

    Read the article

  • An alternative way to request read reciepts

    - by lavanyadeepak
    An alternative way to request read reciepts Sometime or other we use messaging namespaces like System.Net.Mail or System.Web.Mail to send emails from our applications. When we would need to include headers to request delivery or return reciepts (often called as Message Disposition Notifications) we lock ourselves to the limitation that not all email servers/email clients can satisfy this. We can enhance this border a little now, thanks to a new innovation I discovered from Gawab. It embeds a small invisible image of 1x1 dimension and the image source reads as recieptimg.php?id=2323425324. When this image is requested by the web browser or email client, the serverside handler does a smart mapping based on the ID to indicate that the message was read. We call them as 'Web Bugs'. But wait it is not a fool proof solution since spammers misuse this technique to confirm activeness of an email address and most of the email clients suppress inline images for security reasons. I just thought anyway would share this observation for the benefit of others.

    Read the article

  • How should I account for the GC when building games with Unity?

    - by Eonil
    *As far as I know, Unity3D for iOS is based on the Mono runtime and Mono has only generational mark & sweep GC. This GC system can't avoid GC time which stops game system. Instance pooling can reduce this but not completely, because we can't control instantiation happens in the CLR's base class library. Those hidden small and frequent instances will raise un-deterministic GC time eventually. Forcing complete GC periodically will degrade performance greatly (can Mono force complete GC, actually?) So, how can I avoid this GC time when using Unity3D without huge performance degrade?

    Read the article

  • A simple deployment example using Oracle Solaris 11

    - by Glynn Foster
    Last week I was over in Melbourne and Sydney to present at an Oracle Technology Network System Administration Day. During a set of morning sessions, I presented on some of the new things that we've done in Oracle Solaris 11 and our focus for the future. One of the sessions I presented was giving a quick technical overview of what a typical application deployment scenario would look like using technologies like the Image Packaging System (IPS), Service Management Facility (SMF), Oracle Solaris Zones, and network virtualization. While it's just a simple example, it provides the basic building blocks for a more advanced configuration that a data center would typically deploy. Given these would likely be of general interest, I thought I'd upload the slides for others to view - enjoy! You can download the original source PPTX without some of the formatting errors in the above.

    Read the article

  • exact point on a rotating sphere

    - by nkint
    I have a sphere that represents the Earth textured with real pictures. It's rotating around the x axis, and when user click down it has to show me the exact place he clicked on. For example if he clicked on Singapore the system should be able to: understand that user clicked on the sphere (OK, I'll do it with unProject) understand where user clicked on the sphere (ray-sphere collision?) and take into account the rotation transform sphere-coordinate to some coordinate system good for some web-api service ask to api (OK, this is the simpler thing for me ;-) some advice?

    Read the article

  • What Color is your Jetpack ?

    - by JoshReuben
    I’m a programmer, Im approaching 40, and I’m fairly decent at my job – I’ll keep doing what I’m doing for as long as they let me!   So what are your career options if you know how to code? A Programmer could be ..   An Algorithm developer Pros Interesting High barriers of entry, potential for startup competitive factor Cons Do you have the skill, qualifications? What are working conditions n this mystery niche ? micro-focus An Academic Pros Low pressure Job security – or is this an illusion ? Cons Low Pay Need a PhD A Software Architect Pros: strategic, rather than tactical Setting technology platform and high level vision You say how it should work, others have to figure out why its not working the way its supposed to ! broad view – you are paid to learn (how do you con people into paying for you to learn ??) Cons: Glorified developer – more often than not! competitive – everyone wants to do it ! loose touch with underlying tech in tough times, first guy to get the axe ! A Software Engineer Pros: interesting, always more to learn fun I can do it Fallback Cons: Nothing new under the sun – been there, done that Dealing with poor requirements, deadlines, other peoples code, overtime C#, XAML, Web - Low barriers of entry –> à race to the bottom A Team leader Pros: Setting code standards and proposing technology choices Cons: Glorified developer – more often than not! Inspecting other peoples code and debugging the problems they cannot fix Dealing with mugbies and prima donas Responsible for QA of others A Project Manager Pros No need for debugging other peoples code Cons Low barrier of entry High pressure Responsible for QA of others Loosing touch with technology A lot of bullshit meetings Have to be an asshole A Product Manager Pros No need for debugging other peoples code Learning new skillset of sales and marketing Cons Travel (I'm a family man) May need to know the bs details of an uninteresting product things I want to work with: AI, algorithms, Numerical Computing, Mathematica, C++ AMP – unfortunately, the work here is few & far between. VS & TFS Extensibility, DSLs (Workflow , Lightswitch), Code Generation – one day, code will write code ! Unity3D, WebGL – fun, fun, fun ! Modern Web – Knockout, SignalR, MVC, Node.Js ??? (tentative – I'll wait until things stabilize as this area is undergoing a pre-Cambrian explosion) Things I don’t want to work with: (but will if I'm asked to !) C# – same old, same old – not learning anything new here Old code – blech ! Environment with code & fix mentality , ad hoc requirements, excessive overtime Pc support, System administration – even after 20 years, people still ask you to do this sometimes ! debugging – my skills are just not there yet Oracle Old tech: VB 6, XSLT, WinForms, Net 3.51 or less Old style Web dev Information Systems: ASP.NET webforms, Reporting services / crystal reports, SQL Server CRUD with manual data layer, XAML MVVM – variations of the same concept, ad nauseaum. Low barriers of entry –> race to the bottom.  Metro – an elegant API coupled to a horrendous UX – I'll wait for market penetration viability before investing further in this.   Conclusion So if you are in a slump, take heart: Programming is a great career choice compared to every other job !

    Read the article

< Previous Page | 493 494 495 496 497 498 499 500 501 502 503 504  | Next Page >