Search Results

Search found 48586 results on 1944 pages for 'page performance'.

Page 236/1944 | < Previous Page | 232 233 234 235 236 237 238 239 240 241 242 243  | Next Page >

  • Hierarchical data in Linq - options and performance

    - by Anthony
    I have some hierarchical data - each entry has an id and a (nullable) parent entry id. I want to retrieve all entries in the tree under a given entry. This is in a SQL Server 2005 database. I am querying it with LINQ to SQL in C# 3.5. LINQ to SQL does not support Common Table Expressions directly. My choices are to assemble the data in code with several LINQ queries, or to make a view on the database that surfaces a CTE. Which option (or another option) do you think will perform better when data volumes get large? Is SQL Server 2008's HierarchyId type supported in Linq to SQL?

    Read the article

  • Calculating CPU frequency in C with RDTSC always returns 0

    - by Nazgulled
    Hi, The following piece of code was given to us from our instructor so we could measure some algorithms performance: #include <stdio.h> #include <unistd.h> static unsigned cyc_hi = 0, cyc_lo = 0; static void access_counter(unsigned *hi, unsigned *lo) { asm("rdtsc; movl %%edx,%0; movl %%eax,%1" : "=r" (*hi), "=r" (*lo) : /* No input */ : "%edx", "%eax"); } void start_counter() { access_counter(&cyc_hi, &cyc_lo); } double get_counter() { unsigned ncyc_hi, ncyc_lo, hi, lo, borrow; double result; access_counter(&ncyc_hi, &ncyc_lo); lo = ncyc_lo - cyc_lo; borrow = lo > ncyc_lo; hi = ncyc_hi - cyc_hi - borrow; result = (double) hi * (1 << 30) * 4 + lo; return result; } However, I need this code to be portable to machines with different CPU frequencies. For that, I'm trying to calculate the CPU frequency of the machine where the code is being run like this: int main(void) { double c1, c2; start_counter(); c1 = get_counter(); sleep(1); c2 = get_counter(); printf("CPU Frequency: %.1f MHz\n", (c2-c1)/1E6); printf("CPU Frequency: %.1f GHz\n", (c2-c1)/1E9); return 0; } The problem is that the result is always 0 and I can't understand why. I'm running Linux (Arch) as guest on VMware. On a friend's machine (MacBook) it is working to some extent; I mean, the result is bigger than 0 but it's variable because the CPU frequency is not fixed (we tried to fix it but for some reason we are not able to do it). He has a different machine which is running Linux (Ubuntu) as host and it also reports 0. This rules out the problem being on the virtual machine, which I thought it was the issue at first. Any ideas why this is happening and how can I fix it?

    Read the article

  • performance issue in a select query from a single table

    - by daedlus
    Hi , I have a table as below dbo.UserLogs ------------------------------------- Id | UserId |Date | Name| P1 | Dirty ------------------------------------- There can be several records per userId[even in millions] I have clustered index on Date column and query this table very frequently in time ranges. The column 'Dirty' is non-nullable and can take either 0 or 1 only so I have no indexes on 'Dirty' I have several millions of records in this table and in one particular case in my application i need to query this table to get all UserId that have at least one record that is marked dirty. I tried this query - select distinct(UserId) from UserLogs where Dirty=1 I have 10 million records in total and this takes like 10min to run and i want this to run much faster than this. [i am able to query this table on date column in less than a minute.] Any comments/suggestion are welcome. my env 64bit,sybase15.0.3,Linux

    Read the article

  • PHP page load seems to be requesting itself and misinterpreting the result

    - by Regis Frey
    I'm working on a messy PHP page by another developer and I was analyzing the resource view in the Webkit developer tools and noticed that the page (index.php) makes an HTTP requests for itself and then interprets the results as an image despite it being sent with the text/html header. Because of this it throws the warning: Resource interpreted as image but transferred with MIME type text/html. Looking at the time graph the call comes after the <head> because it has already requested images for the body. Sometimes there are even two 'bad' requests. Can anyone explain what might be happening and/or suggest how to fix this? Could these be related to PHP includes?

    Read the article

  • Javascript undefined behavior with string.replace

    - by epochwolf
    I've been messing around with string.replace and I noticed something very odd with Webkit and Firebug's javascript consoles. I can repeat this behavior in a blank browser window. (Look at the first and last lines) >>> "/literature?page=".replace(/page=/i, "page=2") "/literature?page=" >>> "/literature?page=".replace("page=", "page=2") "/literature?page=2" >>> "/literature?page=".replace(/page=/, "page=2") "/literature?page=2" >>> "/literature?page=".replace(/page=/i, "page=2") "/literature?page=2" Just so nobody thinks I mistyped something, here are screenshots. Firebug (3.0.14) Webkit (Latest nightly as of this post's creation.)

    Read the article

  • Javascript - how to change elements content inside a page when using iframes, using dom, not jquery

    - by Erez
    Hello all, I have this iframe and as u can see it call a js function with the onload trigger. <iframe name="top" id="top" width="99%" height="20%" src="top.htm" frameborder="0" scrolling="no" onload="log_in()"></iframe> What i need to do is to effect the element inside "top.htm" (change innerHTML and stuff like that) from that function. But the problem is that the funnction does not recognize the elements of the "top.htm" page, only the ones in index.htm (the page with the iframes). p.s. i have to use DOM and i have to use iframes. Any one knows how to do that? 10x :-)

    Read the article

  • Why Does Thread.CurrentThread.CurrentCulture Change between Page Rendering and HttpModule.PostReques

    - by Chad
    I'm creating an HttpModule that needs to know the value of Thread.CurrentThread.CurrentCulture as set in an MVC application. That value is currently being set by the BaseController, but when my HttpModule.PostRequestHandlerExecute() method fires, it reverts to what the Culture was prior to page rendering. I have duplicated this by creating a simple web app with these steps: Module.PreRequestHandlerExecute: Set culture to A Page_Load: Culture is currently A. Set culture to B Module.PostRequestHandlerExecute: Current thread culture is A. I expected it to be B but it was changed between page rendering and PostRequestHandlerExecute Any idea why .Net changes this value or how I could get around it? The thread is the same, so something in .Net must be explicitly reverting the culture.

    Read the article

  • Quickly check which part of the page lifecycle a control is in

    - by Khanzor
    Is there any way to check what events have fired during the asp.net webforms page/control lifecycle? I know that I can manually add handlers for each event, but that seems a bit ... inefficient. Is there a visualiser, or a property that I can check that will tell me whether these events have fired? EDIT The reason I want to know this is that I am overriding the ViewState property of a custom control, and the viewstate disappears at some point, and I'd like to know at which point in the page lifecycle it is being overriden.

    Read the article

  • 404 when page exists - IIS 5, ASP.NET 4.0

    - by tsilb
    I have a webserver running Server 2003 Datacenter and IIS 5 which is hosting a variety of ASP.NET 2.0 websites. I'm attempting to add an ASP.NET 4.0 website which I wrote via the VS2010 Beta, and I have .NET 4.0 Beta 1 installed on the server. The website appears to be configured correctly; anonymous access is on, it points to the right folder, and is set to asp.net 4.0. Why might it be giving me a 404 error when I browse to it, both locally and remotely?

    Read the article

  • Add Today's Date to SharePoint Master Page

    - by soniiic
    Surely there must be a simple way of putting a simple code block into a master page :( I've tried using the obvious <%= "Hello, World!" %> syntax but code blocks aren't allowed. Then tried a site column, but don't know how to use them. Then tried web zones but master pages can't use them. Tried putting a web part (which are super difficult to make and deploy btw) into the page layout, but it just doesn't render :/ All I want is something nice and simple at the top of my site which shows today's date and the format I want to use is DateTime.Today.ToString("ddd, d MMMM yyyy") (Otherwise I'm resorting to javascript document.write!) Thanks all,

    Read the article

  • Problem performance datawarehouse with lots of indexes

    - by Lieven Cardoen
    Our product takes tests of some 350 candidates at the same time. At the end of the test, results for each candidate are moved to a datawarehouse full of indexes on it. For each test there's some 400 records to be entered in datawarehouse. So 400 x 350 is a lot of records. If there are not much records in the datawarehouse, all goes well. But if there are already lots of records in the datawarehouse, then a lot of inserts fail... Is there a way to have indexes that are only rebuild at the end of the day or isn't that the real problem? Or how would you solve this?

    Read the article

  • Advice for printing a colored page

    - by eSKay
    If I need to print a colored document on a black and white printer, then which one of these options do you think is better: desaturating the document first and then sending it to printer giving the print command on the colored document only (trusting the printer for the job) I know most of us use the second option. I want to know if there is any possible advantage of using the first option?

    Read the article

  • Window Media Player issues two requests for the audio on web page

    - by Ron Harlev
    I'm using Windows Media Player in a web page. I have version 11 installed so that is the version I'm testing with right now. The player is embedded on the page with this HTML: <OBJECT id='MS_mediaPlayer' width="400" height="45" classid='CLSID:6BF52A52-394A-11D3-B153-00C04F79FAA6' codebase='http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,701' standby='Loading Microsoft Windows Media Player components...' type='application/x-oleobject'> <param name='autoStart' value="false"> <param name='uiMode' value="invisible"> <param name='loop' value="false"> </OBJECT> I'm calling in JavaScript: MS_mediaPlayer.URL = "SomeAudioFile.mp3" MS_mediaPlayer.controls.play(); When I look at Fiddler I can see that the player actually downloads "SomeAudioFile.mp3" twice. Is there some setting I have wrong? I was trying to set the "autoPlay" to true and avoid calling "play()". Got the same result - two downloads. UPDATE: The first request's user-agent is "Windows-Media-Player/11.0.5721.5268". The second has "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)". Looks like the browser is running the same request the second time. No Idea why Any ideas? UPDATE (4/1/10): Still no solution. I debugged the JS thoroughly and there is only one call to MediaPlayer.URL='.....' to set the audio file. Nothing else triggers the media player to load the file and there is no other place referencing the audio file on the page. One other interesting fact is that this doesn't happen (the double loading of the audio) when I run the browser locally on my development web server. But other remote requests to the same web server generate the double audio loading. I believe I eliminated any correlation with specific IE version or media player version. This happens with IE6-8 and WM9-12

    Read the article

  • Sending message to windows service by web page

    - by Enriquev
    Hello, How could I do this with no access denied problem? I have a windows service: protected override void OnCustomCommand(int command) { if (command == 1) { foreach (Process traceProcess in Process.GetProcessesByName("notepad.exe")) { traceProcess.Kill(); } } } when I do this: ServiceController sc = new ServiceController("ProjectManager"); if (sc != null) sc.ExecuteCommand(1); From a windows forms it works, but not from a web page, I get access denied on sc.ExecuteCommand. What's the best way for a web page to talk to a service?

    Read the article

  • Making footer image stick to bottom of web browser or page

    - by Slyphee
    Hello, I know this has been asked alot of times in the past but for the life of me I can't seem to get any of the other solutions to work. What I'm trying to do is to get the footer (which is an image that repeats across the width of the page) to stick to the bottom of the browser when there isn't enough content to naturally push it to the bottom of the page and when there IS enough content to push it to the bottom it does just that. An example is the one at http://www.themaninblue.com/experiment/footerStickAlt/good_example_short.htm which does exactly what I want but I can't get to work either. The code that I've currently got implemented makes the footer stick to a certain section of the page with text going under it. You can see it at sourcectrl.co.uk but its not much to look at. Heres the code for your viewing pleasure. html, body { font: 100% Arial, Helvetica, sans-serif; height: 100%; color: #597347; margin: 0; padding: 0; background: #573909; } header { display: block; position: relative; top: 0; left: 0; width: 100%; height: 66px; background: url(../images/FillerPage_01.gif) repeat-x left bottom; } section { width: 940px; margin: 0 auto; font-size: 1.4em; overflow: auto; min-height: 100%; height: auto !important; height: 100%; margin-bottom: 87px; position: relative; padding-bottom: 90px; } footer { display:block; position: absolute; bottom: 0; width: 100%; height: 87px; background: url(../images/FillerPage_08.gif) repeat-x left bottom; } Sorry if it seems messy! I'd just like to know if I'm heading in the right direction or theres something I'm just not getting? Oh yeah I'm trying to do all of this with the html 5 markup which is why there is no #footer and the like (could this be why none of the solutions work?). If anyone could give me any help or guidance I'd be soooooo grateful.

    Read the article

  • How to customize the Visual Studio 2010 RC StartPage recent projects

    - by devlife
    I'd like to play around with customizing the visual studio 2010 rc start page recent items. For what I have in mind I'd need to customize the datasource / databinding but I can't find where the information is coming from. <ScrollViewer Grid.Row="1" HorizontalAlignment="Stretch" Style="{DynamicResource StartPage.ScrollViewerStyle}" VerticalAlignment="Stretch" VerticalScrollBarVisibility="Auto"> <sp:MruListBox DataContext="{Binding Path=RecentProjects}" ItemsSource="{Binding Path=Items}" Background="Transparent" BorderThickness="0" AutomationProperties.AutomationId="MruList"/> </ScrollViewer> Can anyone point me in the right direction? I see that it is binding to RecentProjects but where is that coming from?

    Read the article

  • Entity Framework Performance Inconsistency Compared to Sql Management Studio

    - by AndyV
    I'm getting timeouts with a very basic EF statement. I'm simply doing a select from a single table with a Entity.Title.StartsWith("test") and a .Take(25). When I run this for a search that returns no results I get a timeout. If I profile and grab the sql statement it looks fine, and if I run that sql in Management Studio it runs in a fraction of a second! Why would the same query run sub-second in Management Studio and timeout when generated by EF and called from an Asp.Net app?

    Read the article

  • ASP.NET MVC ,Maintaining Model State between Ajax requests

    - by Podders
    problem: On first full page request, my controller invokes an applicationServices Layer (Web Service Proxy to my business tier) in order to populate a collection of current services that is stored in my own controller base class property. This is then to be displayed within a view. Everything within the context of that controller has access to this "Services Collection". Now when i make further calls to the same action method via an AJAX Call, i obviously hitt a different instance of that controller meaning my services collection is empty. So other than re-getting the whole collection again, where would i store this collection so it gets persisted between ajax requests? Should i persist it as a seperate DomainModel Object, Session object?....as ViewData is not working for me obv. Excuse my MVC ignorance :) Any help would be greatly appreciated :)

    Read the article

  • Performance implications of BeginInvoke

    - by AngryHacker
    I've inherited code where BeginInvoke is called from the main thread (not a background thread, which is usually the pattern). I am trying to understand what it actually does in this scenario. Does the method being called in the BeginInvoke get in line of messages that come down to the window? The docs say asynchronously, so that is my assumption. How does the framework prioritize when to kick off the method called by BeginInvoke?

    Read the article

  • Setting up web page width

    - by RPK
    I am new to web-design. I want to set the page-width so that it appears well in a 800x600 resolution screen. I normally use Tables but I read somewhere that excessive use of Tables slows the performance of the website. What other thing I can use and how to set the width?

    Read the article

< Previous Page | 232 233 234 235 236 237 238 239 240 241 242 243  | Next Page >