AJAX :: Application Getting Slower And Slower If Use More Time?
Jan 26, 2011
Our application is getting slower and slower if the user using more time... its start as regular website and works fine for some time..once the time is going on the speed getting slower..for one request it is taking more than 7 secs..
One of our Page (which is main one and user needs spent more time in this page) contains 3 formview and one grid view..all are inside 2 update panel and one main update panel.
CWe've internal application written in ASP.NET, AJAX, SQL 2005. The problem is that sometimes response time (post back) is raising up to 10-30 second for some reson. The only way to make it faster is to restart browser (IE). Then it works really fast.
I have no clue what is causing this. Maybe it's viewstate, browser cache, browser memory clogging - I DON'T KNOW. The only thing I know is when I shut and reopen browser it's working fine. If I leave it open and come back in an hour or two it's really slow.
We had a UAT and Production version of a .NET web application. UAT was taking around 5 seconds to run a particular operation while Prod was taking 35+ seconds.
This even happened when pointing both web applications at the same database and putting them both on the same machine.
The culprit was finally found to be the following entry, which was in the Prod but not UAT web.config
<trust level="High" originUrl="" />
why this would cause such a significant performance degradation??
I am taking some time to learn how to develop asp.net mvc2 websites, but I'm used to working directly off IIS instead of the built-in web server that uses the random ports when you hit F5.
but I've noticed that using the built-in webserver, requests fly and are immediate. I am using only the default project with the Home and About pages as it comes out of the New ASP.NET MVC 2 Project settings, no database connections, nothing beyond the base install...
but when I setup the IIS website and pointed it to the same directory, each request takes at least 3-5 seconds to complete, sometimes more. this isn't just the "load" on the first request. EVERY request takes this long on IIS. but if I F5 and test the project once again, everything zips and the responses are immediate.
Are you experienced with both ASP.NET and WPF coding? If so, I'll be grateful if you'll share your experience, We are estimating a 100-screen WPF project. Our estimation methodology involves characterizing the complexity of each screen. We then apply a standard number for the development time, based on the complexity and the technology. The standard number is based on the developer being good, not a super-star.
we are running a complex 64-bit ASP.NET 2.0 application on W2008 R2 Standard and stress tests done with VS2008 Team System have indicated that integrated pipeline mode is 30% slower than classic mode.
We have compared the application traces extensively and it appears that integrated mode is uniformly slower than classic. That is, there is no single point that causes delays in integrated mode.
This is quite the opposite to everything Microsoft says about the integrated pipeline, so it might be that there is something quite wrong with the configuration of the integrated mode or the server. But we have not found any settings that would have any effect on this. Some complaints that Sharepoint and reporting services are slower in integrated mode can be found, but our application does not use them so this is quite likely unrelated.
I've been using things like Firebug and YSlow, so I'm not really looking for advice on increasing page load speeds, but I'm wondering does extra imports or using, especially if your importing or using classes that aren't necessary, cause a page to load slower?
From time to time my application crashes and I start getting all sorts of weird errors like "object reference not set to an instance of an object", that then turns to "failed to enable constraints..", etc. Sometimes then the application starts to work again properly by itself, and sometimes not until I restart IIS, after which everything is ok again.
Could not load file or assembly 'System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' or one of its dependencies. The system cannot find the file specified.
Description:
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.IO.FileNotFoundException: Could not load file or assembly 'System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' or one of its dependencies. The system cannot find the file specified.
Source Error:
[Code]....
Source File:
c:ProductiveTeamsMedTegraPresentationMedTegraSLMedTegraSL.WebMainMaster.Master Line: 16 Assembly Load Trace: The following information can be to determine why the assembly 'System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' could not be loaded.
I have a series of collapsible panel extenders on my page and each time the page opens or postsback the panels open for a time and then close. Is there a way to prevent this?
I am using calendar extender and time picker control. When I click insert in my application, my date is going into my database but my time is not going from my time picker control into my database.
Do I need another column for my time picker control ?
I need to add a "real-time" element to my web application. Basically, I need to detect "changes" which are stored in a SQL Server table, and update various parts of the UI when a change has occured. I'm currently doing this by polling. I send an ajax request to the server every 3 seconds asking for any new changes - these are then returned and processed.
It works, but I don't like it - it means that for each browser I'll be issuing these requests frequently, and the server will always be busy processing them. In short, it doesn't scale well. Is there any clever alternative that avoids polling overhead?
I am creating a web application.. When a user want to register with that application Local time of that user must be registered in this application.. I tried to get the browser time to register ..It is working ..Now i want to improve this.. The user can have incorrect time in his system.
I have a requirement to calculate the Web application idle time. Say the user doesnt use the web application for 15 minutes, then a message needs to be displayed to the user.
I'm working on an application (a web application, asp.net and c#) which is datetime-dependent, so, based on the current date, it will launch forms for the logged user to fill in.
I've been thinking about how we're going to simulate real usage of the application, for debugging and testing purposes.
public class MyDateClass { private DateTime _currentDate; public DateTime GetCurrentDate() { // get the date, which may be different from DateTime.Now return _currentDate; } public void SetCurrentDate(DateTime newCurrentDate) { // set the date to the value chosen by the user _currentDate = newCurrentDate; } }
allowing me to set the current data, by invoking the SetCurrentDate method, for example, in the code-behind of a link button and a calendar input.
how should I exactly store the DateTime variable, throughout all the application? I can't work with the session in this class, right? Should I work with the Thread?
we have this problem but can't find a solution. We have an application that references something like 24 dlls. When you invoke the application the very first time (after the application is for any reason reset) it takes 25-40 seconds to start loading contents.
This is what we tried:
1. precompile and publish everything in release mode 2. removing pdbs from bin folder 3. put strong named assemblies into GAC 4. set application to debug = false
consider that the whole bin folder is composed by 24 dlls for a total size of 28MB. Just 4 of these dlls are strong named and they are more and less 25MB. Nothing seems changed. What happens EXACTLY when the application is started is something I couldn't find in any book nor forum/blog/post... What can we monitor more to find where the problem is?
I'm working on an asp.net mvc application. Each user have his own time zone.Right now, I'm using "TimeZoneInfo.GetSystemTimeZones" to generate a drop down list in order for the user to select a timezone and this is what I store in my db
They are like that: Morocco Standard Time (00:00:00) UTC (00:00:00) GMT Standard Time (00:00:00) ...
I know that php use a different timezone set, they are "region timezone", for example: Europe/Paris Europe/London ...
My question is: is there a way to play with the region timezone (like php) in an .NET application? The only way I can think of is to bind each php region timezone to the .net timezone.Also, the "TimeZoneInfo.GetSystemTimeZones" list all of the timezone on the machine. Is the list different between windows server, windows vista, windows xp?
i was wondering if i could capture transaction time automatically. e.g. if form has a grid submit button and user clicks submit button to submit changes on a grid to database, is there a way to capture start time when user clicked the button and reply user got back from page?
I have an asp.net application which uses session for user management. So if the application is restarted users will loose their works. I have some components used by this asp.net application and those components (class libraries in Bin folder) have configurations. I want to save configurations of those components somewhere and change them from back-end (administration panel) and the components use the updated configs but still application should not be restarted (changing web.config will result in application restart).
We deplyed an application to a host, my default asp.net page load 3 small catalogs, this delay to load about 15 secondsthe first time, Can I do something about it
