Search Results

Search found 17097 results on 684 pages for 'entry level'.

Page 486/684 | < Previous Page | 482 483 484 485 486 487 488 489 490 491 492 493  | Next Page >

• Overhead of serving pages - JSPs vs. PHP vs. ASPXs vs. C

  - by John Shedletsky

  I am interested in writing my own internet ad server. I want to serve billions of impressions with as little hardware possible. Which server-side technologies are best suited for this task? I am asking about the relative overhead of serving my ad pages as either pages rendered by PHP, or Java, or .net, or coding Http responses directly in C and writing some multi-socket IO monster to serve requests (I assume this one wins, but if my assumption is wrong, that would actually be most interesting). Obviously all the most efficient optimizations are done at the algorithm level, but I figure there has got to be some speed differences at the end of the day that makes one method of serving ads better than another. How much overhead does something like apache or IIS introduce? There's got to be a ton of extra junk in there I don't need. At some point I guess this is more a question of which platform/language combo is best suited - please excuse the in-adroitly posed question, hopefully you understand what I am trying to get at.

  Read the article

• Delete/move a UITableView row that's attached to a web service.

  - by Kevin L.

  Deleting or moving rows for a UITableView that is backed with local data (e.g., NSArray) is easy and instantaneous: Remove the value from the array. Call deleteRowsAtIndexPaths:withRowAnimation:. Profit! But my table view communicates with a web service, which means once the "Delete" button on that row gets tapped, I have to forward a request on to the server (via ASIHTTPRequest, of course), get the response, and then tell the table view to run its little delete-row animation, all with a few seconds of latency in between. From a high-level, what's the best way to do that? Throw some callback selector into ASIHTTPRequest's userInfo dictionary? KVO? Bonus points for some nice UI touch, like some kind of spinner on the soon-to-be-deleted cell.

  Read the article

• Library for Dataflow in C

  - by msutherl

  How can I do dataflow (pipes and filters, stream processing, flow based) in C? And not with UNIX pipes. I recently came across stream.py. Streams are iterables with a pipelining mechanism to enable data-flow programming and easy parallelization. The idea is to take the output of a function that turns an iterable into another iterable and plug that as the input of another such function. While you can already do this using function composition, this package provides an elegant notation for it by overloading the operator. I would like to duplicate a simple version of this kind of functionality in C. I particularly like the overloading of the operator to avoid function composition mess. Wikipedia points to this hint from a Usenet post in 1990. Why C? Because I would like to be able to do this on microcontrollers and in C extensions for other high level languages (Max, Pd*, Python). * (ironic given that Max and Pd were written, in C, specifically for this purpose – I'm looking for something barebones)

  Read the article

• Database suggestion

  - by superartsy

  I am working on an enterprise level product that is designed around SQL Express Database ( views,concurrent users,stored procedures,case,IF).Though we dont use any SQL Server advanced features, if the database size of 4Gb in express ends up being a limitation customers can move to advanced versions of SQL Server. However my problem is, SQL Express deployment is not easy and the installer size is huge. This is a major drawback for someone looking to try our product.You dont want end users to not buy a product becos the download is huge. Does anyone have any recommendations of a database that has a smaller footprint but all the features of Express and which can be migrated to express?

  Read the article

• How to detect time on a playing Flash video

  - by 6bytes

  Hi I have a video playing on my page. I want to show and hide some div's when the video reaches a certain point. Lets say hide something on 10th second and show it again on 20th second. I can easily do it in HTML5 with video tag and currentTime attribute but for IE I have to create the same functionality and I think with flash based videos (from YouTube or something like that). Is there a way to detect the current time of a video playing on my website, embeded from YouTube, Metacafe or any other video sharing site? I know I could detect it in flash and make it run some JavaScript function but I don't have flash nor have the skills to do it in AS3. Is it possible to do it from JavaScript level or does any video sharing website out there provides this kind of functionality for their videos?

  Read the article

• Manually Building a Tree in CakePHP

  - by mabwi

  I'm currently working on building an application in CakePHP. There's a quite extensive existing data set that's conceptually a tree, but wasn't previously stored as one. What I mean by that, is there's no real relationship defined in the data. The problem I'm having is getting it to work correctly with the CakePHP tree behaviour. Because I have to set all the values on existing data - as opposed to Cake setting up the structure as elements are inserted - I need to understand how the lft/rght values work. So, I guess the question is: How does the structure data work, specifically the lft/rght values? How do I set it up so that the data comes out rationally, without inserting them one at a time? It's a 2 level tree, with Sections and sub-sections. Thanks for the help

  Read the article

• gzinflate erroring

  - by Rob

  Well, I'm trying to gzdeflate my code to perform some very low level encryption for distribution, to use with eval(gzinflate('deflated_code')); However whenever I try to inflate the deflated string, it outputs an error. For example: echo(gzdeflate('test')); outputs +I-.? But when I try to echo(gzinflate('+I-.?')); it only outputs Warning: gzinflate() [function.gzinflate]: data error Is there something I'm missing? Why is it outputting this error rather than test?

  Read the article

• Is there a faster way to draw text?

  - by mystify

  Shark complains about a big performance hit with this line, which takes like 80% of CPU time. I have a counter that is updated very frequently and performance seriously sucks. It's an custom UILabel subclass with -drawRect: implemented. Every time the counter value changes, this is used to draw the new text: [self.text drawInRect:textRect withFont:correctedFont lineBreakMode:self.lineBreakMode alignment:self.textAlignment]; When I comment this line out, performance rocks. Its smooth and fast. So Shark isn't wrong about this. But what could I do to improve this? Maybe go a level deeper? Does that make any sense? Probably drawing text is really so incredible heavy...?

  Read the article

• Bandwidth Monitoring in asp.net

  - by asifch

  HI, We are developing a multi-tenant application in Asp.Net with separate DB for each tenant, in which one of the requirement is to monitor the bandwidth usage for each tenant, i have tried to search but not found much help on the topic,we want to monitor exactly how much bandwidth is being used for each tenant while each tenant can have its own top level domain or a sub domain or a combination of both. so what are the available options, the ones which i can think of can be 1. IIS Log Monitoring means a separate application which will calculate the bandwidth for each tenant. 2. Log Each Request and Response for a tenant from within the application and then calculate the total bandwidth usage based on that. 3. Use some third part components if available So what do you think will be the best approach, also if there is any other way to do this.

  Read the article

• Best way to update UI from other classes?

  - by Jack

  I've got several nested classes, with the following structure: BackupLocation contains list of BackupClients BackupClients contains a list of BackupVersions BackupVersions contains a list of BackupFiles In my UI - Im populating a combo box with BackupLocations - and have several listboxes for the clients, versions, and files. When processing the BackupLocations - I can update my status bar easily because thats the top level class that the UI creates. But how can I update the status bar and progress bar on each file being processed? Since the BackupFiles are 3 levels deep, I cant see any way to update the UI. The actual processing of the files are within the BackupVersion class - which loads its files. I think it probably has something to do with events and delegates - but am unsure exactly how to proceed with this, any help would be appreciated.

  Read the article

• Problem with deployment of windows application using setup wizard.

  - by Mike

  I have some xml files, which are used in my application. They are stored in the same folder with application , in subfolder DATA: "C:\MyProject\DATA\". To get the DATA folder path i use this code : static public string GetDataFolderPath() { string s = System.IO.Directory.GetCurrentDirectory().Replace(@"\bin\Debug", ""); int i = s.LastIndexOf(@"\"); s = s.Substring(0, i); i = s.LastIndexOf(@"\"); s= s.Substring(0, i); return s + @"\Data\"; } So when i want to deploy my application, i create a setup project, and add the DATA folder to Application folder. But after i install the program f.e. "C:\Project"(DATA folder- "C:\Project\DATA" i got the error: "folder C:\DATA is not found". What i need to change to make things working after deployment. Why it looks for the DATA folder on 1 level higher?

  Read the article

• Python: Best practice for including a version number in an app?

  - by Ben

  I have a PyQt application that reads and writes data files. I am including a 'version number' in each file written. This is a simple number similar to: 1.2 or something (major and minor versions). I am doing this so that I can change the format of these data files in future versions and then still correctly parse them simply by checking to see what the version is inside the file. My question is what is the best practice for keeping this number stored inside the app itself. I.e. do I just hard-code the app version number into the class that is responsible for reading and writing files? Or should I have some sort of object/variable stored at the top-level of the app and somehow access it from the class responsible for reading and writing these files. If the latter, how do I store it and how do I access it? Thanks.

  Read the article

• custom form with Drupal - CCK and simple module - what next?

  - by bert

  I have mastered creating custom data types and adding fields with CCK. Then I created and deployed a custom module with _form and _validate and _submit hooks. I am not happy with the amount of massaging required with css and permissions to make the form usable, but this is not my question. Now I would like to create a more sophisticated form with jquery to submit form and add content to page. I am at a bit of loss as how to get to this next level. I have been looking at tpl.php files, but this looks very rigid and more complicated as well. Can any provide a model or tutorial or point me in right direction.

  Read the article

• latex and bibtex problem

  - by Hellnar

  Hello, I am trying to compile an academical paper with chicago style citations. For this I am using a file named chicago.sty, Document compiles however I do not see any reference or citation.Instead I somehow get error when reading the paper.blg file: This is BibTeX, Version 0.99cThe top-level auxiliary file: paper.aux I couldn't open style file chicago.bst ---line 62 of file paper.aux : \bibstyle{chicago} What is a blg file, and how can I generate it from the .sty file so that my citations and references display properly. I do a such include: .... \usepackage{chicago} \addto\captionsenglish{\def\refname{Reference-List}} .... .... %at the bottom of the source file: \bibliographystyle{chicago} \singlespacing \bibliography{paper}%name of the bib file Regards.

  Read the article

• Getting the last element of a Postgres array, declaratively

  - by Wojciech Kaczmarek

  How to obtain the last element of the array in Postgres? I need to do it declaratively as I want to use it as a ORDER BY criteria. I wouldn't want to create a special PGSQL function for it, the less changes to the database the better in this case. In fact, what I want to do is to sort by the last word of a specific column containing multiple words. Changing the model is not an option here. In other words, I want to push Ruby's sort_by {|x| x.split[-1]} into the database level. I can split a value into array of words with Postgres string_to_array or regexp_split_to_array functions, then how to get its last element?

  Read the article

• viewing data using php and mysql

  - by circle

  hello, i'm circle.very new in php and mysql.i need to develop a website include with database.but i have a problem with this. i'm using php and sql to develop it.my task is: i have two table, investor and commission. investor have three level which is coordinator, consultant and participant.what should i do is, only coordinator can add consultant and participant in their profile.and only coordinator can add participant in their profile. so here, when investor was login, and they go to view commission, they only can see their owned coordinator and participant. but i'm stuck when they want to view the commission.maybe it only a simple thing, but i cannot solved it. help me..:(

  Read the article

• create tree/XML structure from SQL query c#

  - by Tim Bassett

  Here is my current issue. I need to display a tree like structure displaying a recall roster. Our DBA created a stored procedure that returns [level],[name],[contact_info]. Example looks like: [1] [test name1] [contact info] [2] [sub to1] [contact info] [3] [sub to2] [contact info] [4] [sub to3] [contact info] [3] [sub to2] [contact info] [2] [sub to1] [contact info] etc... It's sorted in the order of the hierarchy I haven't really worked with XML much but is that the way to go in loading/presenting this data. Currently when I retrieving the data I'm returning it in a datatable. There may also be a need to export this data to Excel. Can anyone point me a good direction to go with this?

  Read the article

• Spring server start-up event

  - by jia

  i am facing a problem. I am using tomcat server for my spring maven project and i want to subscribe my application to facebook once when server starts up. I have tried ApplicationListener ContextRefreshedEvent. It gets invoked on application context initialization, but the issue is at that time my server has not completely started and hence my application is not publically accessible which is required in my case as facebook subscription requires verification using application public URL. So i want to do subscription when my server gets started completey and not on application context initialization. Any idea how can i do it? Do i have nay application level event listener that can tell me that server has started completely? Regards jia

  Read the article

• How should i draw text and shapes in wpf and C#?

  - by peterhu

  I want to do basic WPF graphics, i.e. rectangles, lines, circles and text. When should I use Drawing and when should I use a DrawingVisual? I have some code that uses Drawing and I render those to a DrawingImage and display that in an image control. Is this the right way? I could not see how to add text to a drawing. I had trouble positioning it too. Should I be rendering to a Canvas? I have some code that uses DrawingVisual and writes to a DrawingContext. That is like WinForms. Is this the recommended way? Do you have any high level advice on which APIs to use for basic graphics and labels? Will they options work on Silver Light and Desktop?

  Read the article

• Stored Procedure - forcing execution order

  - by meepmeep

  I have a stored procedure that itself calls a list of other stored procedures in order: CREATE PROCEDURE [dbo].[prSuperProc] AS BEGIN EXEC [dbo].[prProc1] EXEC [dbo].[prProc2] EXEC [dbo].[prProc3] --etc END However, I sometimes have some strange results in my tables, generated by prProc2, which is dependent on the results generated by prProc1. If I manually execute prProc1, prProc2, prProc3 in order then everything is fine. It appears that when I run the top-level procedure, that Proc2 is being executed before Proc1 has completed and committed its results to the db. It doesn't always go wrong, but it seems to go wrong when Proc1 has a long execution time (in this case ~10s). How do I alter prSuperProc such that each procedure only executes once the preceding procedure has completed and committed? Transactions?

  Read the article

• Running Firefox in the Windows service mode

  - by Leonid

  I'm writing a server running as a Windows service that by request invokes Firefox to generate a pdf snapshot of a webpage. I know it is a bad idea to run a GUI program in service mode, but the server nature of my program restricts from running it in the user mode. Running a user-level 'proxy' also is not an option, since there might be no interactive user logged-in on the machine with the server running. In my experiments Firefox successfully produced pdf when the service was running under a user account that was already logged-in. Obviously it didn't work in other cases: for Local System and user accounts that weren't logged-in. Under LocalSystem with 'Allow service to interact with desktop' option enabled I could see the Firefox started that reports that it's unable to find a printer. Since it wouldn't be practical to require an opened user session for the pdf server to run, is there any workaround for this except running the whole thing from a virtual machine?

  Read the article

• how to represent negative number to array of integers ?

  - by stdnoit

  I must convert string of 1324312321 to array of integers in java this is fine. I could use integer parseint and string substring method but how do I repesent -12312312 to my original array of integer.. the fact that - is a char / string and convert to array of integer would alter the value ( even though I convert - to integer-equivalent , it would change the rest of 12312312) it must be an array of integers and how should I convert negative numbers and still keeep the same value somehow reminding me of two complements trick but i dont think i need to go down to binary level in my program.. any other trick for doing this? thanks!

  Read the article

• [XSLT] How to add a space when a certain pattern is found?

  - by user349470

  Anyone has any ideas how to add a space between "a" and "boy" when </b><i> pattern is found? <aaa> I am <b>a</b><i>boy</i>. </aaa> Currently I apply template at "aaa" level and then handle <b> and <i> templates separately. However, I have no ways to tell that the </b><i> pattern is found.

  Read the article

• Error becuase Virtual directory not being configured as an application in IIS

  - by Cipher

  Hi, I was trying to install a CMS in a folder in my website. After the installation on trying to run, it shows this error: Error 14 It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS. E:\Users\Sarin\Documents\Visual Studio 2010\WebSites\WebAssist\blog\web.config 61 I added the webiste as a Virtual Directory and also converted that to application. On trying to browse this application, the following error occurs as shown in the screenshot: http://i.imgur.com/jcRJe.jpg How to make this work?

  Read the article

• Persistent SQL Table lock from C#

  - by Chris

  I'm trying to create a persistent SQL (SQL Server 2005) lock on a table level. I'm not updating/querying the specified table, but I need to prevent a third party application from updating the locked table as a means to prevent transactions from being posted (the table I wish to lock is the key on their transaction that interferes with my processing). From my experience the table is only locked for the time a specific transaction is taking place. Any ideas? The 3rd party developer has logged this feature as an enhancement, but since they are in the middle of rolling out a major release I can expect to wait at least 6 months for this. I know that this isn't a great solution, since their software will fall over but it is of a critical enough nature that we're willing to live with the consequences.

  Read the article

< Previous Page | 482 483 484 485 486 487 488 489 490 491 492 493  | Next Page >