Search Results

Search found 20275 results on 811 pages for 'general performance'.

Page 577/811 | < Previous Page | 573 574 575 576 577 578 579 580 581 582 583 584  | Next Page >

• Graph visualization code in javascript?

  - by Chris Farmer

  Hi. I have a data structure that represents a directed graph, and I want to render that dynamically on an HTML page. Does anyone know of any javascript code that can do a reasonable job with graph layout? These graphs will usually be just a few nodes, maybe ten at the very upper end, so my guess is that performance isn't going to be a big deal. Ideally, I'd like to be able to hook it in with jQuery so that users can tweak the layout manually by dragging the nodes around. Edit: Google's Visualization API seems to be more "graphs as charts" oriented than "graphs as nodes" oriented. I didn't see any node-oriented visualizations already built there, anyway. Do you know that one exists?

  Read the article

• What is your opinion of the Telerik Extensions for MVC?

  - by Chad

  I've started digging around with using the Telerik Extensions for MVC. They don't integrate seemlessly into my current project, but I could reorganize things to fit it in. But, I'm wondering if it would be worth it in the end. I've been searching for reviews on the extensions, I haven't seen too many. So I'm asking here. On their website they claim: You can achieve unprecedented performance for your web application with the lightweight, semantically rendered Extensions that completely leverage the ASP.NET MVC model of no postbacks, no ViewState, and no page life cycle. So I'm curious, What is your opinion of the Telerik Extensions for MVC?

  Read the article

• How to generate pdf files _with_ utf-8 multibyte characters using Zend Framework

  - by Sejanus

  Hello, I've got a "little" problem with Zend Framework Zend_Pdf class. Multibyte characters are stripped from generated pdf files. E.g. when I write aabccdee it becomes abcd with lithuanian letters stripped. I'm not sure if it's particularly Zend_Pdf problem or php in general. Source text is encoded in utf-8, as well as the php source file which does the job. Thank you in advance for your help ;) P.S. I run Zend Framework v. 1.6 and I use FONT_TIMES_BOLD font. FONT_TIMES_ROMAN does work

  Read the article

• Advice needed: What tech expertise do I need to accomplish my goal?

  - by quaternion

  I have a business plan & money to hire a developer - the essentials involve simple online games for children (played via traditional computer over the internet) such that their scores are uploaded to a database that can be viewed via a nice portal. What I don't know is: what technologies I would want my developer to know (the only somewhat unusual requirement I have is that the games have relatively accurate timing of keypresses/mouse presses) how much I should expect to pay (in general, what is the appropriate range) how many hours a program of the complexity of a simple tower defense -type game should take to develop (to be clear, the idea is not to implement TD, but rather other games of similar complexity) whether I should go with capable acquaintances, some online kind of online web-dev bidding site, or just try to find a capable undergraduate at the local university who I can wow with his/her first big paycheck, how I should communicate the software's specifications to my hired developer... Is there a standard I should be using? whether I should hire a webdev consultant for a few hours to help me answer these questions, instead of asking stackoverflow Thanks for any advice!

  Read the article

• Partition of tables in MySQL

  - by Joel

  Hello, I have read that in a case where a table has many columns, but most of the time only one of them is used (say a title column in a forum post), a way to increase performance would be a partition to two tables, where one will contain only the title and the other one will contain the other columns (such as the forum post body). However, in case I use select ForumTitle from Forum; won't that be good enough to prevent the load of all columns (such as the forum post's body) to the memory, and eliminate the need of partition? Thanks, Joel

  Read the article

• Python: create a function to modify a list by reference not value

  - by Jonathan

  Hey all- I'm doing some performance-critical Python work and want to create a function that removes a few elements from a list if they meet certain criteria. I'd rather not create any copies of the list because it's filled with a lot of really large objects. Functionality I want to implement: def listCleanup(listOfElements): i = 0 for element in listOfElements: if(element.meetsCriteria()): del(listOfElements[i]) i += 1 return listOfElements myList = range(10000) myList = listCleanup(listOfElements) I'm not familiar with the low-level workings of Python. Is myList being passed by value or by reference? How can I make this faster? Is it possible to somehow extend the list class and implement listCleanup() within that? myList = range(10000) myList.listCleanup() Thanks- Jonathan

  Read the article

• Why dont Android applications provide an "Exit" option?

  - by Howiecamp

  Is there something in the Android developer guidelines that disuadea developers from providing the option to "exit" (stop running) an application from within the application itself? I love multitasking and all but it's not clear to me why: the vast majority of apps don't have their own Exit functions and hence just keep running forever don't give you a choice about running when you turn on the phone - they just do by default Both of these things lead to memory usage constantly increasing and your device running with this performance burden all of the time despite the fact that you may only want certain apps to run some of the time. Am I missing something?

  Read the article

• Is it possible to change where things are in Chrome's Developer Tools Script panel?

  - by T.J. Crowder

  When debugging browser-based apps using Google Chrome's Developer Tools, is there a way to change the locations of the various panes? Specifically in the Scripts panel (though I suppose it's a general question). E.g., the Watch Expressions, the Call Stack, the code pane, etc.? The defaults are okay (console at bottom, code pane upper left, a column of Watch Expressions, Call Stack, Scope Vars, etc. in the upper right), but I'd rather swap things around a bit if it's possible. There doesn't seem to be anything to grab (other than for sizing) and I haven't found a way in my searching so far, but there are (still) some things about Chrome's options that aren't ... well-advertised in the UI, shall we say :-), especially around developer tools.

  Read the article

• Lazy Tables app from iphone

  - by Warrior

  I am new to iphone development. I have parsed a youtube file and displaying its contents with the image in the table view. But the scrolling has become slower because of displaying image.So i want to display the image as the lazy tables program from apple docs.Since they have used navigation based application , their rootviewcontroller loads first and then the delegate class call the parsing ,and when they reload the table view, the contents are displayed. The data array count shows 25. I am using a view controller to display the tables on the present modal view, more over when i run my application, first delegate methods call the parsing. So when i click the youtube icon in my landing page it navigates to table view. So by this time data array count shows 0. I have created table view in interface builder and set the outlets to the file owner properly. Please help me out. I want to increasing the scrolling performance. Thanks.

  Read the article

• Does a .NET 4.0 website load faster for a reason?

  - by Clarence Klopfstein

  I have been using DotNetBlogEngine for many years, and today my host (JodoHost.com) officially turned on support for .NET 4.0. What I've noticed immediately is that the website loads tremendously faster on the first load, subsequent loads are only slightly faster. The website is compiled as a .NET 2.0 web application. Is there a known reason for this performance increase? Was there a change in the .NET 4.0 framework that improved the initial load time of websites into an application pool? This is hosted on a 2003 server. Here is the site for reference: http://www.ocdprogrammer.com

  Read the article

• Help needed with MySQL query to join data spanning multiple tables with data used as column names

  - by gurun8

  I need a little help putting together a SQL query that will give me the following resultsets: and The data model looks like this: The tricky part for me is that the columns to the right of the "Product" in the resultset aren't really columns in the database but rather key/value pairs spanned across the data model. Table data is as follows: My apologies in advance for the image heavy question and the image quality. This just seemed like the easiest way to convey the information. It'll probably take someone less time to write the query statement to achieve the results than it did for me to assemble this question. By the way, the "product_option" table image is truncated but it illustrated the general idea of the data structure. The MySQL server version is 5.1.45.

  Read the article

• Is there a way in PHP to check if a directory is a symlink?

  - by tixrus

  The title says it all. I have symlinks to certain directories because the directories' names have non English characters that I got fed up trying to get apache's rewrite rules to match. There's a bounty on that question http://stackoverflow.com/questions/2916194/trouble-with-utf-8-chars-apache2-rewrite-rulesif anyone wants to go for it, and from the looks of things a lot of people would like to see a general solution to this problem, but meanwhile I made a plain ascii symlink to each of these offending directories. Now the rewrite rules are back to just alpha and _ and - and my security concerns are less and it loads the resources I want. But I still need the actual target directory name for display purposes. I googled "PHP directory info, PHP symlink" but didn't find anything. I need to do something like this: if (is_symlink($myResDirName)) { $realDirName = follow_symlink($myResDirName); }

  Read the article

• How to find a programmer for my project?

  - by Al

  I'm building a web application to generate monthly subscription fees, but I've quickly realised I'm going to need some help with the project to finish it this century. I don't have any money upfront for a freelancer and every website I've found takes bids for project work. The tasks that need doing are flexible too because I can do whatever the other coder doesn't want to. I'm also happy to guide the developer and offer tips for performance/security/etc etc. My question is; how do I go about finding someone to work with on a profit-share basis? I'm sure there are a billion people like me with the "next killer app" but I genuinely believe in it. Can anyone offer some advice? Thanks in advance! EDIT: I guess the trick is to find someone passionate enough about the subject as I am. Where would I find someone? Are there websites that broker profit-share deals on programming work?

  Read the article

• Subversion for version control

  - by Gabriel Parenza

  Hi, I am working on an application whose primary purpose would be to provide source control management. My idea is to use to SVNKit for file check-out and check-in. However, while working with SVNKit, I realised it does not have the speed I was looking for. For instance, whenever developers create a ChangeRequest, which can encompass change in 3-40 files, I have to create a directory structure distributed across 32 folders. Doing so takes around 50 seconds, Another instance is that after creating change request developers can add files to the request. Copying even a single file from Trunk to branch takes around 6-7 secs. My question is has anyone had experience like this and what did you do to improve the performance? Moreover, is my approach correct? NOTE: I am using "http" protocol and can't use "svn" protocol.

  Read the article

• C++: set of C-strings

  - by Nicholas

  I want to create one so that I could check whether a certain word is in the set using set::find However, C-strings are pointers, so the set would compare them by the pointer values by default. To function correctly, it would have to dereference them and compare the strings. I could just pass the constructor a pointer to the strcmp() function as a comparator, but this is not exactly how I want it to work. The word I might want to check could be part of a longer string, and I don't want to create a new string due to performance concerns. If there weren't for the set, I would use strncmp(a1, a2, 3) to check the first 3 letters. In fact, 3 is probably the longest it could go, so I'm fine with having the third argument constant. Is there a way to construct a set that would compare its elements by calling strncmp()? Code samples would be greatly appreciated.

  Read the article

• Any exprience with Castle ActiveRecord?

  - by afsharm

  Hi all, I was searching for a light data access framework based on NHibernate. I needed simple CRUD and some simple HQL or LINQ-to-NHhibernate queries. Performance was not an important issue and applications which I'm working on have simple table structure but many tables. This data access framework is going to be used in a ASP.NET Webform application. Once a time I found S#harp architecture, but it was developed for ASP.NET MVC. Just today I found Castle ActiveRecord. But I'm wondering: If any one has any experience with it? Is it suitable for me? Should I consider any specific matter? What about its future? Is Castle ActiveRecord supposed to be developed and be active in coming years? Thanks in Advance

  Read the article

• MS Sql Full-text search vs. LIKE expression

  - by Marks

  Hi. I'm currently looking for a way to search a big database (500MB - 10GB or more on 10 tables) with a lot of different fields(nvarchars and bigints). Many of the fields, that should be searched are not in the same table. An example: A search for '5124 Peter' should return all items, that ... have an ID with 5124 in it, have 'Peter' in the title or description have item type id with 5124 in it created by a user named 'peter' or a user whose id has 5124 in it created by a user with '5124' or 'peter' in his street address. How should i do the search? I read that the full-text search of MS-Sql is a lot more performant than a query with the LIKE keyword and i think the syntax is more clear, but i think it cant search on bigint(id) values and i read it has performance problems with indexing and therefore slows down inserts to the DB. In my project there will be more inserting than reading, so this could be a matter. Thanks in advance, Marks

  Read the article

• How is it that the abstract class XmlWriter can be instantiated using XmlWriter.Create(... ?

  - by Cognize

  Hi, Just looking to clarify my understanding of the workings of the XmlWriter and abstract classes in general. My thinking is (was) that an abstract class can not be instantiated, although it can contain base methods that can be used by an inheriting class. So, while investigating XmlWriter, I find that to instantiate the XmlWriter, you call XmlWriter.Create(.... , which returns an instance of... XmlWriter, which can then be used: FileStream fs = new FileStream("XML.xml", FileMode.Create); XmlWriter w = XmlWriter.Create(fs); XmlSerializer xmlSlr = new XmlSerializer(typeof(TestClass)); xmlSlr.Serialize(fs, tsIn); This clearly works, as tested. Can anyone help me understand what is going on here. As far as I can see there is or should be no 'instance' to work with here??

  Read the article

• Guaranteed COM object release?

  - by Jurily

  I wrote the following code under the assumption that Excel will die with Monkey: class ExcelMonkey { private static Excel.Application xl = new Excel.Application(); public static bool parse(string filename) { if (filename.Contains("foo")) { var workbook = xl.Workbooks.Open(filename); var sheet = workbook.Worksheets.get_Item(1); // do stuff return true; } return false; } } How do I make sure it does? Do I need to release workbook and sheet separately? I want to have Excel around for the lifetime of the program, it's a huge performance improvement.

  Read the article

• IE 8 dialog windows not decompressing files

  - by Mike

  Hi, I've got a website where we have pre-compressed all of our HTML files. In general this works fine, but since IE 8 has come out some people are finding that they can not use some parts of the website. We've used the showModalDialog command to open a dialog window and pointing to one of our pre-compressed files but it displays it just show up as strange characters (ie not decompressed). Now it only happens in the dialog. I'm pretty sure our compression is all fine because the page they are viewing to open the dialog is also compressed. Has anyone else come across this or got any suggestions cuz i'm stumped??? Thanks, Mike

  Read the article

• render HTML (convert to bitmap)

  - by MK

  Can somebody recommend the best (and preferably portable) way to render HTML documents onto a bitmap? As far as I understand my main 2 options are WebKit and Gecko, but I wasn't able to find a good starting point on how to do it. When I last tried doing this 5 years ago, I ended up using Gecko to send the document to a printer, which is not really what I need. I need rendering to a in-memory bitmap. To clarify: server side, no Java, no .NET, batch processing, performance, not interactive, no Javascript.

  Read the article

• How to create a delayed queue in RabbitMQ?

  - by eandersson

  What is the easiest way to create a delay (or parking) queue with Python, Pika and RabbitMQ? I have seen an similar questions, but none for Python. I find this an useful idea when designing applications, as it allows us to throttle messages that needs to be re-queued again. There are always the possibility that you will receive more messages than you can handle, maybe the HTTP server is slow, or the database is under too much stress. I also found it very useful when something went wrong in scenarios where there is a zero tolerance to losing messages, and while re-queuing messages that could not be handled may solve that. It can also cause problems where the message will be queued over and over again. Potentially causing performance issues, and log spam.

  Read the article

• Has anyone ever encountered a Monad Transformer in the wild?

  - by martingw

  In my area of business - back office IT for a financial institution - it is very common for a software component to carry a global configuration around, to log it's progress, to have some kind of error handling / computation short circuit... Things that can be modelled nicely by Reader-, Writer-, Maybe-monads and the like in Haskell and composed together with monad transformers. But there seem to some drawbacks: The concept behind monad transformers is quite tricky and hard to understand, monad transformers lead to very complex type signatures, and they inflict some performance penalty. So I'm wondering: Are monad transformers best practice when dealing with those common tasks mentioned above?

  Read the article

• Can I use UIPerformance grails plugin and host my static resources in another domain?

  - by fabien7474

  The UIPerfomance plugin is an easy way to speed up your web pages by applying some of the best practices rules from Yahoo performance team (like minifying, setting a far-future expires header, versioned images...) Unfortunately I didn't find a way to store the static resources in a location outside of the webapplication which has his own advantages ( smaller WAR sizes, better optimize cookieless server, static resources served faster by a highly optimized native httpd, no need to redeploy WAR when updating static resources..). So my question is: is it possible to use this great plugin with static resoures stored outside the web application? And if yes, how?

  Read the article

• Unexpected generics behaviour

  - by pronicles

  I found strange generics behaviour. In two words - thing I realy want is to use ComplexObject1 in most general way, and the thing I realy missed is why defined generic type(... extends BuisnessObject) is lost. The discuss thread is also awailable in my blog http://pronicles.blogspot.com/2010/03/unexpected-generics-behaviour.html. public class Test { public interface EntityObject {} public interface SomeInterface {} public class BasicEntity implements EntityObject {} public interface BuisnessObject<E extends EntityObject> { E getEntity(); } public interface ComplexObject1<V extends SomeInterface> extends BusinessObject<BasicEntity> {} public interface ComplexObject2 extends BuisnessObject<BasicEntity> {} public void test(){ ComplexObject1 complexObject1 = null; ComplexObject2 complexObject2 = null; EntityObject entityObject1 = complexObject1.getEntity(); //BasicEntity entityObject1 = complexObject1.getEntity(); wtf incompatible types!!!! BasicEntity basicEntity = complexObject2.getEntity(); } }

  Read the article

< Previous Page | 573 574 575 576 577 578 579 580 581 582 583 584  | Next Page >