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• how to avoid or minimise use of check/conditional statement?

  - by Muneeb Nasir

  I have scenario, where i got stream and i need to check for some value. if i got my any new value i have to store it in any of data structure. well it seems very easy, i can place conditional statement if-else or can use contain method of set/map to check either received is new or not. but the problem is checking will effect my application performance, in stream i'll receive hundreds for value in second, if i start checking each and every value i received than for sure it effect performance. Any body can suggest me any mechanism or algorithm that solve my issue. either by bypassing checks or atleast minimize them?

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• Moving OVD from Test to Production

  - by mark.wilcox

  Customer asked support "How to move a test OVD server to production". There is a couple of ways to do this. One way is to clone the environment: http://download.oracle.com/docs/cd/E15523_01/core.1111/e10105/testprod.htm#CH... Another way - which is particularly useful if you want to push configuration from a parent OVD server to children in a cluster: http://download.oracle.com/docs/cd/E14571_01/oid.1111/e10046/basic_server_set... Note if you use the second option and you have any data in a Local Store Adapter - you may also need to use the oidcmprec tool to synchronize that data: http://download.oracle.com/docs/cd/E14571_01/oid.1111/e10029/replic_mng_mon.h... Posted via email from Virtual Identity Dialogue

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• Les premières puces Sandy Bridge corrigées ont été livrées, la rapidité d'Intel rassure les constructeurs de cartes mère

  Les premières puces Sandy Bridge corrigées ont été livrées, la rapidité d'Intel rassure les constructeurs de cartes mère Mise à jour du 21.02.2011 par Katleen Intel semble avoir tenu ses engagements, à savoir livrer ses nouveau chipset (en remplacement des défectueux) à la fin février. Le second mois de l'année touche à sa fin et les premières puces de ce type viendraient d'être livrées. Le constructeur MSI a en effet déclaré en avoir reçu la première fournée, et s'atteler dès à présente à la réparation et au remplacement des cartes mères défectueuses concernées par le rappel. Les composants ainsi mis à jour porteront une étiquette indiquant "MSI B3 Stepping Ready...

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• Reusing elements in StandardStyles.xaml

  - by nmarun

  In one of my previous blogs (second point) , I mentioned not to modify the StandardStyles.xaml, but instead to create your own resource dictionary. I also mentioned how to declare your custom styles dictionary in the App.xaml file. If you want to reference or build upon from an existing style in the StandardStyles.xaml file, do the following: 1. Remove the entry for StandardStyles.xaml in the App.xaml file 2. Add your custom resource dictionary in the App.xaml file 1: <!-- App.xaml --> 2: <...(read more)

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• 24 Hours of PASS

  - by andyleonard

  I am honored to participate in 24 Hours of PASS starting at 8:00 AM 19 May 2010! My presentation is titled Database Development Patterns and is the second session - starting at 9:00 AM EDT 19 May 2010. It's free, but you have to register to attend - register today! :{> Andy Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!...(read more)

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• Why fgetc too slow?

  - by user14284

  I've written a program that reads an whole file via fgetc: while ((c = fgetc(f)) != EOF) { ... } But the program is too slow. When I changed fgetc to fread, static unsigned char buf[4096]; while ((n = fread(buf, 1, sizeof(buf), f)) > 0) { ... } the program works about 10 times faster. Why? As I know, fgetc is a buffered function, so it should work as fast as the second version with explicit buffer, isn't it?

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• Good Compression for Slow-mo Video

  - by marienbad

  What's the best way to deliver super slow-motion video to the browser? This seems to me to be a special case, because with super slow-mo video (such as 10,000 frames per second) the visual difference from frame to frame is minimal. As such, it's easy to compress highly. Please suggest codecs, as well as encoding software, backend software, software configuration tips, and services like youtube. My goal is to get about 100 frames of QVGA video to the browser in 500KB. By the way, remember that Radiohead In Rainbows site?

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• Why doesn't the installer see all of my hard drives?

  - by atodd

  I'm trying to setup a dual boot system with Windows Vista 64 (already installed) and Ubuntu 10.10. I added a new drive which is identical to the one Vista is installed on. When I boot into the LiveCD I can see and mount the second drive and edit it in Gparted. However, when I use the installer it will only bring up the drive that already has Vista installed. I've tried everything I know. I'm not sure if its a BIOS setting or something else I've missed. I've also tried both the desktop and alternate amd64 installs with the same result.

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• SQL Server 2008 R2: StreamInsight changes at RTM: Event Flow Debugger and Management Interface Secur

  - by Greg Low

  In CTP3, I found setting up the StreamInsight Event Flow Debugger fairly easy. For RTM, a number of security changes were made. First config: To be able to connect to the management interface, your user must be added to the Performance Log Users group. After you make this change, you must log off and log back on as the token is only added to your login token when you log on. I forgot this and spent ages trying to work out why I couldn't connect. Second config: You need to reserve the URL that the...(read more)

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• Resuming from hibernation shows a fuzzy "static" screen

  - by Ross

  When I resume from hibernation in Ubuntu 10.10 the screen shows static, very similar to what you see on an analogue TV that hasn't been tuned properly. This also occurs on boot from shut down, but only for a moment after the Plymouth boot screen. The static lasts for at least 5 minutes. An odd thing that happens is that the mouse pointer, as a lighter square of static, becomes visible and you can move it around. Attempting to change into a terminal (i.e. Ctrl+Alt+F1) doesn't seem to work (and I'm not sure if that can be done from the login screen). Resuming from suspend has different issues - vertical lines appearing for a second before appearing to be in terminal mode (blinking cursor) and then going to the lock screen. I'm running Ubuntu 10.10 on a Dell Studio 15 with ATI graphics, however I'm not using the proprietary drivers as I had issues with dual-screen support, so it's the generic X.org drivers being used.

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• Error after updating from Ubuntu 10.04 to Ubuntu 10.10

  - by Emerson Hsieh

  Note: This was posted 6 months ago. Please read my answer below. I updated to 10.10 from 10.04 last week. After rebooting it shows "error "prefix" not found" for half a second and then it's stuck at a flashing line forever!! I installed 10.04 again and I didn't upgrade to 10.10 directly because the flashing line looks creepy and I don't want to see it again. What should I do now?? PS: I want to upgrade to 10.10 I am using wubi I hate that flashing line

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• Education path advice

  - by Miroslav Zadravec

  I'm thinking of continuing my education and going for masters degree. I must decide between two programs. One is CS/IT and focuses on algorithms, math, multimedia, web technologies with optional interesting courses like AI and robotics. Second is about business process management, software architecture and project management. I have some experience in business software and I must say, I never though I need deeper understating of algorithms or program language but I always felt that I'm lacking in project planing or management knowledge. On the other side, CS/IT looks more interesting but what are the chances to find a job that require such skills?

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• ubuntu installtion problem

  - by yogi

  I have one machine in which Windows8 is already installed and having 3 partitions(one for windows OS). Now i wanted to install Ubuntu12.04, i have tried many times but ubuntu 12.04 installer not able to fine those partitions, even it is not recognise windows partition. please refer the images and please help me to solve this issue. Somehow i am not able to update images so i am just explain here. "Installation type " window - this window only shows two options 1)Erase disk and install ubuntu" 2) Something else * here there is no option for "Along with windows 8" option and in second window of "Installation type" it shows Device : /dev/sda freespace 500107 MB *there is nothing else. but i reality there is three partitions and i wanted to install Ubuntu in other partitions. I don't formate windows8. I am new with Ubuntu so please help me to install Ubuntu. Thanks.

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• How do I know if my firewall is on?

  - by paercebal

  I installed Firestarter, and configured my firewall. But I'm in doubt : On boot, I sometimes see a [FAIL] marker, and to the left, I guess it was something like "start firewall". I can't be sure because the message is seen for less than a second, so I wanted to know if there is a way, without starting the whole firestarter software, to know if the firewall is on and working, or not. Either a gadget, or better, some console instruction, the exact name of the firewall process/daemon, or bash script, will do. Edit: I already tested my computer with the "Shield's Up" http://www.grc.com feature, which marks my computer as "Stealth", but as I am behind a router, I'm not surprised. Still, apparently, my computer answers to pings... Strange...

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• Retrieve data from an ASP.Net application using Ado.Net 2.0 disconnected model

  - by nikolaosk

  This is the second post in a series of posts regarding to ADO.Net 2.0. Have a look at the first post if you like. In this post I am going to investigate the "Disconnected" model. When I say "Disconnected" I mean Datasets . Datasets are in memory representations of tables in a particular database. A Dataset contains a Table collection and each Table collection contains a Row collection and each Row collection contains a Columns collection. So initially you connect to the database, get the data to...(read more)

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• Another Update to SQL Server Configuration Scripting Utility

  - by Bill Graziano

  I’ve been gradually adding features to my utility that scripts the configuration of a SQL Server.  Since my last post I’ve added the following features: Skip any encrypted object in a database Script alerts, alert notifications and operators Script audits Always script model, master and msdb to capture any user-defined objects in those databases Logins are now scripted so that everything for a login is grouped together. There’s a second section in the logins that handles default databases.  In many cases a login’s default database is a mirror target and can’t be set.  This is now handled gracefully.  It also includes a separate section for all default databases so those can be quickly set in the event of a disaster. Script credentials Script proxy accounts Script database mail My goal is still to get everything outside a database scripted.  This release is enough that I can keep my mirror target servers in sync with their principals.

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• What`s Coming Up for ASP.NET

  In case you really did miss it, aspConf 2012 is a free, virtual conference dedicated to ASP.NET and organized by and for the community. It was held July 17 and 18. You can check out past conference videos and training sessions here. This year's conference featured more than 60 presentations from speakers both inside and outside of Microsoft. Scott Hanselman, the organizer, gave the second day's keynote speech. The Principle Community Architect for the Azure Web Team, Hanselman started by talking about where ASP.NET is now and some of the aspects that make its users unhappy. He then moved on t...

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• Repeater vs. ListView

  - by MoezMousavi

  I do really hate repeater. I was more a GridView lover but after 3.5 be born, I prefer ListView.  The first problem with Repeater is paging. You will need to write code to handle paging. Second common problem is empty data template. Have a look at this:             if (rptMyRepeater.Items.Count < 1)             {                 if (e.Item.ItemType == ListItemType.Footer)                 {                     Label lblFooter = (Label)e.Item.FindControl("lblEmpty");                     lblFooter.Visible = true;                 }             }   I found the above code is usefull if you need to show something like "There is no record" is your data source has no records. Although the ListView has a template.   If you combine ListView with a DataPager, you will be in heaven as it is sorting the paging for you without writing code. (http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.datapager.aspx)     Note: You have got to bind ListView in PreRender, it doesn't work properly in PageLoad   More: http://www.4guysfromrolla.com/articles/061009-1.aspx

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• Oracle Endeca Training UK - April 10th, 11th

  - by Grant Schofield

  By popular demand we have decided to hold a second Oracle Endeca Information Discovery Training event in the UK to accommodate those who were unable to get into the first. Training is currently being planned for early May in Switzerland, end of May in Germany and mid-June in Istanbul at the EMEA BI annual event. Date: 10th - 11th April Venue: Oracle Reading, UK A registration link will be sent out shortly, but to avoid disappointment please bookmark this article and block these two days in your diary. You can also register interest by emailing me directly and I will operate a first come, first serve policy - [email protected]

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• Making video from 3D gaphics in OpenGL

  - by MVTC

  What are some of the preferred methods or libraries for creating video from an OpenGL graphics simulation? For example, I want to create a visualization(video) of an N-Body gravity simulation by rendering non-real-time OpenGL frames. The simulation is already coded, I just don't know how to convert it to video. EDIT: I am also interested in providing the described functionality: The user can adjust parameters including the time step between captured frames and then initiate the simulation. The user waits for the simulation to complete, and then can watch the results. The user is able to increase or decrease the playback speed of the simulation whereas in slow motion, more frames are used i.e., you see higher resolution time steps, and when the speed is increased, you see lower resolution time steps at a higher rate, but the frames per second flashing on the screen is constant.

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• How to hide keyboard layout shortcut from Unity top panel?

  - by user67715

  I'm using Ubuntu 12.04 together with X Neural Switcher, which is a program for the automatic switching of the keyboard layout. The switcher goes with a GUI called gXNeur. The GUI places an applet icon to the Unity top panel (the gXNeur had to be whitelisted for the icon to become visible) that help a lot to configure and make urgent changes in the rules that the program uses. But after the icon is whitelisted I'm having two keyboard layout indicators in the panel (one - native, the second one - gXNeur). The native is the one I'd like to hide while gxNeur is more intuitive. Is there a way to do that? Thanks a lot for your help!

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• process monitoring in c under linux

  - by poly

  I'm trying to write a multi threaded/processes application and it need to know how to monitor a process from another process all the time. So here is what I have, I have a 2 processes, each with multiple threads that handle the network part, then another 2 process also with multiple threads that interact with DB and with the network processes, what I need to do is that if for example one of the network processes goes down the DB process start sending to the live network process until the second one is up again. I'm using fifo between the DB and the network process. I was thinking of sending messages with message passing all the time but not sure whether this is a good idea or I need to use some other IPC for this issue, or probably neither is good and I need to use entirely something else? Thanks,

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• Must all new features go through betatest?

  - by LTR

  Obviously, small usability fixes and bugfixes go directly into the stable product. What about small new features? Can you afford to just release them after internal testing, or do they have to be betatested by customers first? Situation: This is a young commercial project, produced by a one-person company. It has an existing userbase and is at it's second major version. Previous betatests have produced some results, however most feedback came from the stable product and not from beta versions.

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• How to structure my java packages

  - by MightyPork

  I have a Java library, quite a huge one. I'm asking regarding Best Practices of structuring the source. For example, the logging sybsystem: Option 1: All in one package, named to sort nicely Log - static accessor LogMonitor - interface for log minotor LogMonitorBase - abstract class LogMonitorStdout - print log to console LogWriter - interface for file logger LogWriterSimple - log writer with just one log file LogWriterArchiving - log writer that handles old log files Option 2: Subpackages for Monitors and Writers, with better names Log monitors/LogMonitor monitors/BaseMonitor monitors/StdoutMonitor writers/LogWriter writers/SimpleLog writers/ArchivingLog The second maybe looks better, but perhaps it's not so practical from the java point of view (two extra packages). What do you suggest as the best practice here? A lot in one package, grouped by naming prefixes, or a lot of subpackages with better names?

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• How to determine if someone is accessing our database remotely?

  - by Vednor

  I own a content publishing website developed using CakePHP(tm) v 2.1.2 and 5.1.63 MySQL. It was developed by a freelance developer who kept remote access to the database which I wasn’t aware of. One day he accessed to the site and overwrote all the data. After the attack, my hosting provider disabled the remote access to our database and changed the password. But somehow he accessed the site database again and overwrote some information. We’ve managed to stop the attack second time by taking the site down immediately. But now we’re suspecting that he’ll attack again. What we could identified that he’s running a query and changing every information from the database in matter of a sec. Is there any possible way to detect the way he’s accessing our database without remote access or knowing our Cpanel password? Or to identify whether he has left something inside the site that granting him access to our database?

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