Is there a way to check the memory usage (consumption) of individual controls on a web form shown in a browser. Like Repeater Control, Multiline Text box etc. The reason is I am putting the repeater control in session and checking the status of controls, based on which I am doing further actions.
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Some while ago I found a web page explaining the default size of a session was 2048 kb, the minimum was 1 kb.How can this be adjusted? And if some one has links regarding the subject I would be a happy camper :)
View 2 RepliesI am trying to develop a chess application in asp.net (C#). I am very confused about overall structure of the application. I am just unable to figure out the complete model (or prototype) of my project. As chess programming should be very efficient in memory consumption and speed, can someone provide me a good idea , how should I develop my application. Currently, I am taking a class named 'Chessboard' for my project and its objects are chesspieces ( pawn,king,queeen). I am initialising each object with some properties (type, value, color etc). But its quite complex. I am having 32 objects in this approach.
View 1 RepliesI have this big project running VWD2010 and it eats a lot of resources about 340mb+. This does not happen before, last time I check this one project runs less than 150mb. Sometimes, I even run two instances of VWD2010, one project has lesser files about 130mb and combining the two, about less than 340mb. But on a single project that doesn't run more than 300mb before, is this normal? Is VWD2010 updates something?
I only use Task Manager to check the memory consumption.
Is there a way to get load information on Application Server? How much memory or CPU is being used at a given point? I want to either 1. Limit users to use specific functionality of ASP.NET 3.5 application or 2. Deny users from accessing the application saying "Server is busy at the moment"
View 4 RepliesWe got "out of memory" issue on production servers. What API can we use to get live memory (physical and managed) usage of the ASP.NET application?
PS: we're forbidden to profile memory with tools.
I have really tried to Google it but only articles about how to troubleshoot memory issues come up. Before I start to troubleshoot, I would like to know if my web site's memory usage is really abnormal or not.
So it is an asp.net mvc 2 website that runs on IIS 7.5 in production. I guess normal memory usage depends upon traffic, so here are the numbers of an average day:
300 unique visitor
400 visits
3000 page views
I would be really happy to get some idea how much is the normal memory usage for this traffic. Also I would be curious to know how memory usage normally increases with traffic growth.
I have an ASP.NET app that scrapes data from a handful of external pages, parses the relevant bits and displays them in a table. Total data retrieved is 3-4MB and the resulting page is about 1MB. I am using synchronous WebRequest GetResponse for the retrieval, but the same problem existed using an asynchronous BeginGetResponse/EndGetResponse process.There is no database access, no session storage, no caching, but an in-memory list of about 100 objects (total 1MB of data), plus a good amount of AJAX (AjaxControlToolkit). This issue appears on the very first run of the app, even if I have restarted IIS.
The issue:
When I run the app on my dev computer, the maximum commit charge is about 1.5GB. The biggest user, measured by Task Manager's VM Size, is WebDev.WebServer.exe (600MB). The app runs perfectly.
When I run it on my rent-a-server (IIS 7.5, 1GB RAM), the maximum commit charge is over 3.8GB. The biggest user is w3wp.exe at 2.7GB. IIS grinds to a halt and spits out a timed-out error page.
Given my limited server budget and the hope of having multiple simultaneous users, I'm kind of in a panic.
Is this normal? If I bump the server RAM up to 4GB, will that be enough?
I have an ASP.NET 3.5 app that collects data from a handful of external pages, parses the relevant bits and displays them in a table. Total data retrieved is 3-4MB and the resulting page is about 1MB. I am using synchronous WebRequest GetResponse for the retrieval, but the same problem existed using an asynchronous BeginGetResponse/EndGetResponse process.
There is no database access, no session storage, but an in-memory list of about 100 objects/1MB of data, plus a good amount of AJAX (AjaxControlToolkit). This issue appears on the very first run of the app, even if I have restarted IIS.
The issue:
When I run the app on my dev computer, the maximum commit charge is about 1.5GB. The biggest user, measured by Task Manager's VM Size, is WebDev.WebServer.exe (600MB). The app runs perfectly.
When I run it on my rent-a-server (IIS 7.5, 1GB RAM), the maximum commit charge is over 3.8GB. The biggest user is w3wp.exe at 2.7GB. IIS grinds to a halt and spits out a timed-out error page.
Given my limited server budget and the hope of having multiple simultaneous users, I'm kind of in a panic.
On an ASP.net site at my place of work, the following chunk of code is responsible for handling file downloads (NOTE: Response.TransmitFile is not used here because the contents of the download are being streamed from a zip file):
[code]....
I've just read about the 'buffer' property of the Response object. If I set that to false, will that prevent the Response.BinaryWrite() calls from buffering the data in memory? In general, what is a good way to limit memory usage in this situation? Perhaps I should stream from the zip to a temporary file, then call Response.TransmitFile()?
EDIT: In addition to possible solutions, I'm very interested in explanations of the memory usage issue present in the code above. Why would this consume far more than 1MB, even though Response.Flush is called on every loop iteration? Is it just the unnecessary heap allocation that occurs on every loop iteration (and doesn't get GC'd right away), or is there something else at work?
I want to find all the controls in the Formview. I have written the below code
If frm.HasControls Then
For Each childCtrl In frm.Controls
'DisableEnableControls(childCtrl, EnabledFlag)
[code]...
I have a update panel combined with gridview with sorting and paging.
I go into task manager to monitor the memory usage of the worker process (w3wp)
What I do is just click on the sort buttons rapidly.
With each click the memory of the process increases with about 2 mb
So I go from 30 mb memory usage to about 90. Then it stops at remains there, no memory is freed up. I am not using caching or session/application state.
What can be causing this, is there a setting in IIS to reduce the mem usage?
I also used .net profiler to examine my app memory usage: 4 mb, so what is the other 86 used for??? Even though it repots 4mb, in task manager it says 90 mb, so this leads me to believe that the rest is namanaged memory which must be used by IIS in some way.
I am hosting a solution with an outside company so getting them to troubleshoot or send me log files is not working.
Is there a way from code or Global.asax file that I can trap Memory usage from my web application when it reaches a certain amount? Then figure out what is using all the memory
I would like to use output caching with WCF Data Services and although there's nothing specifically built in to support caching, there is an OnStartProcessingRequest method that allows me to hook in and set the cacheability of the request using normal ASP.NET mechanisms.
But I am worried about the worker process getting recycled due to excessive memory consumption if large responses are cached. Is there a way to specify an upper limit for the ASP.NET output cache so that if this limit is exceeded, items in the cache will be discarded?
I've seen the caching configuration settings but I get the impression from the documentation that this is for explicit caching via the Cache object since there is a separate outputCacheSettings which has no memory-related attributes.
Here's a code snippet from Scott Hanselman's post that shows how I'm setting the cacheability of the request.
[code]....
I'm using asp.net and chrome and the page becomes unresponsive after a while. When I look at the chrome debug, I see that memory usage increases to about 80MB and chrome popups a request to kill the page. The error counter spins and generates about 30,000 errors when the popup comes. What triggers the error is the call of an updatepanel. The error as displayed in chrome is "Failed to load resource".
The update panel: the user clicks on a button and the panel is refreshed. There's only one update panel on the page.
This is what I have:
function HistoryUIActions() {
$('.SelectDay, .SelectDay1Digit').click(function () { GetNewDate(this); });
};
function GetNewDate(thedateitem) {
var TheDay = $.trim($(thedateitem).html());
TheYear = 2011;
ThisMonth = 2;
DateString = ThisMonth + '/' + TheDay + '/' + TheYear;
__doPostBack('<%= TheUpdatePanel.ClientID %>', DateString);
};
function EndRequestHandler(sender, args) {
HistoryUIActions();
};
The errors compound on every postback: 1,4, 11, 26, 57, 120, 247.... eventually chrome kills the page. When I put a breakpoint in the function, it stops the code just after I press the button; then after it hits the __doPostBack line, it starts the GetNewDate function again several times by going back to the line of the click event, apparently executing it the number of times shown above.
Environment.WorkingSet incorrectly reports the memory usage for a web site that runs on Windows 2003 Server.(OS Vers: Microsoft Windows NT 5.2.3790 Service Pack 2, .NET Vers: 2.0.50727.3607)
It reports memory as Working Set(Physical Mem.): 1952 MB (2047468061).
Same web site runs locally on Windows Vista with a Working Set(Physical Mem.): 49 MB (51924992).
I have limited access to the server and support is so limited.
so i have computed the total memory by traversing with VirtualQuery.
Total of pages with state: MEM_FREE is 1300 MB.
(I guess server have 4 GBs of RAM and PAE is not enabled, max user mode virtual address is 0x7fff0000.)
So, i know working set is not only about virtual memory. But, is it normal to have such a high working set while its very low on another machine?
I have created login page in which if user credential are incorrect it will show the message through jquery notification bar.But, what is happening when page is being postback it will show complete blank page after that it will load the controls of that page and then the error message will be shown if it is there. So, its taking quite a long time .So, how can we access or load the page in faster way?? or should i make any changes while postback?
View 2 RepliesCurrently I have something like this, but when I click "update" the record doesn't get updated (but no error is returned).
[Code]....
we're facing a weird and seemingly randomly appearing problem where the browser renders the complete, raw HTTP response (to a GET request) including all headers and the compressed content as text instead of just using the contents and rendering it. This happens for whole page loads as well as postbacks as well as page loads inside an iframe; for sure in Firefox 3.6.*, not sure about IE right now.
Our service is an ASP.NET 2.0 web app running on IIS 7.5, on our test machines we regularly have Fiddler running in the background (wondering if this might be part of the problem).
This behaviour occurs very rarely but we have started seeing this problem lately during our tests.
Has anybody encountered this problem before and knows what causes it and maybe even knows what to do about it?
I have a web site. if I have a syntax error (i.e. intx i = 1;) on a .cs file in the app code folder, I can see the compilation errror with a line number on the IE browser as usual. But if I have that syntax error on a aspx.cs file, I only see a blank screen.
Note: for other reasons, I could not use Visual Studio to do compliation.
I have been working on a .NET/C# form that contains two time fields that are built out of dropdowns. Time A is made up of two dropdowns for Hours and Minutes and Time B is made up of two drop downs for hours and minutes too. I need to compare the two in order to ensure that Time A is always greater than B. I could just use a CompareValidator to check the hours, that works BUT doesn't take into account the minutes. So lets assume the following scenarios:
A = 11:00 B = 12:15 is fine my validation accepts this as it should do
A = 11:15 B = 11:00 is accepted because the hours are equal but otherwise shouldn't pass as the minutes aren't validated
How would you ensure B is always equal to or greater than A where dropdowns are used? I would if I could change this but not permitted to do so.
I have placed the code below on a page. The strange thing is that the "SOME TEXT" string doesnt show up in the page! I do see "upanel" and "pnl":
upanel
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<ContentTemplate>
pnl
<cc1:TabContainer OnActiveTabChanged="TabChanged" ID="tabContainer" runat="server"
ActiveTabIndex="0" OnClientActiveTabChanged="ActiveTabChanged" Width="100%">
<cc1:TabPanel ID="tp1" runat="server" HeaderText="A tab">
<ContentTemplate>
<asp:UpdatePanel ID="UpdatePanel3" runat="server" UpdateMode="Always">
<ContentTemplate>
SOME TEXT
</ContentTemplate>
</asp:UpdatePanel>
</ContentTemplate>
</cc1:TabPanel>
</cc1:TabContainer>
</ContentTemplate>
</asp:UpdatePanel>
HOWEVER, when I view the pagesource, I see this, so the text IS rendered to the browser! What can be happening here?
upanel
<div id="ctl00_CPHCenter_UpdatePanel2">
pnl
<div id="ctl00_CPHCenter_tabContainer" style="width:100%;visibility:hidden;">
<div id="ctl00_CPHCenter_tabContainer_header">
<span id="ctl00_CPHCenter_tabContainer_tp1_tab"><span><span><span id="__tab_ctl00_CPHCenter_tabContainer_tp1">A tab</span></span></span></span>
</div><div id="ctl00_CPHCenter_tabContainer_body">
<div id="ctl00_CPHCenter_tabContainer_tp1">
<div id="ctl00_CPHCenter_tabContainer_tp1_UpdatePanel3">
SOME TEXT
<div>
</div>
source of gridview details in page source.i am disabling and enabling in a server side and also i am using updatepanel too in the page.
View 4 RepliesI have a memory leak somewhere that I cant find. Every few days my server will crash, and just before that I log a ton of SQL errors stating that it is "out of memory".
I cant find it anywhere, all of my connections are being disposed like so:
[Code]....
Then I call the connection from my pages like so:[Code]....
That is all pretty straight forward. The connection is disposed because it is implementing the USING clause. I am opening the connection in my connection manager class, and not where it is being utilized?Or, could the problem be in the below method I am using to populate a SqlDataReader:[Code]....
Now, at first it appears as though this could be the problem because the Connection isn't part of a USING clause, however doesn't the 'Data.CommandBehavior.CloseConnection' pretty much do the same thing. This makes sure that the connection is closed when the reader is closed, right? Here is how I call that above reader from my login page code behind:[Code]....
So the DataReader will get closed even without the .Close() because it is in the USING, and the connection should get closed because I specified it in the ExecuteReader paramters right?
I am developing a web based application for a Motorolla Mc 9090, it is a wireless barcode scanner running windows mobile 5.0.
The idea is to centralize the inventory in one database, by scanning items, serials, bins etc.
I have a set of pages each containg forms, where the user will have to scan an item, and automaticall the scanner has a carriege return (ENTER key) the idea was to have the user simply scan, and the page would automatically click the button posting to server for processing and then the server would reply.
For some reason i cannot get the focus() to work as well as the defaultbutton propperty of the form. There is also 1 more problem, the readOnly textboxes look the same as the non readOnly textboxes, even with the backcolor property changed.(guessing this is just MS)
