.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
david stephan
Gaurav Pal
Post New Web Links

Detect JIT Optimization when DebugOutput is set to 'none'

Posted By:      Posted Date: April 14, 2011    Points: 0   Category :WPF

Hi all,

I'm trying to analyze an assembly to discover if it has the /optimize switch (JIT Optimization) turned on.  I know that there is the DebuggableAttribute.IsJITOptimizerDisabled property which works perfectly except when DebugOutput is set to "none" in which case there are no DebuggableAttributes present in the assembly to analyze!  In other words, you can compile an assembly with optimizations enabled/disabled even if DebugOuput is set to "none".

Obviously, the JIT compiler has to be able to detect if it should perform optimizations on the assembly.  So, this info must be embedded in the PE image somehow.  Any assistance is greatly appreciated!

If this post is helpful, please mark it as such! Dave Black, MCPD, MCTS .NET Solution Architect Black Box Solutions, Inc.

View Complete Post

More Related Resource Links

How to detect and avoid memory and resources leaks in .NET application

Despite what a lot of people believe, it's easy to introduce memory and resources leaks in .NET applications. The Garbage Collector, or GC for close friends, is not a magician who would completely relieve you from taking care of your memory and resources consumption.

I'll explain in this article why memory leaks exist in .NET and how to avoid them. Don't worry, I won't focus here on the inner workings of the garbage collector and other advanced characteristics of memory and resources management in .NET.

SQL Server Optimization

This article describes different ways of improving the performance of SQL Server queries, with a focus on index optimization. The purpose of this document is to describe different ways of improving the performance of SQL Server queries. Most of this document will describe index optimization, with occasional references to particular code snippets. In other words, this document will describe how to achieve the best performance, given the tables and queries to run against.

VS2010 WDP Optimization


We have moved our projects from VS2008 to VS2010(Ulitmate) but staying with .Net 3.5. In VS2008 we had a web deployment project that would compile the web project to a single dll and emit full debug information, adding the new web deployment project in VS 2010 to do the same the dll is produced along with the pdb but when a dev attempts to debug the variable comes back with "Cannot evaluate expression because the code of the current method is optmized".

In VS2008 we had a targets fix file which had the setting for the optimization but these don't appear to work under 10 (plus the targets file has grown).



Detect Browser Screen Size??


Hi Everyone,  I need to detect the size of the user's screen for mobile devices (especially the BlackBerry). I've read a lot of pages that seem to refer me to the Request.Browser object, but I'm finding that this object doesn't have the correct values. For example, I have a BlackBerry and when I use the Request.Browser to get the screen size, it tells me it is 640x480. Well, I know it's not that big since an image of 300px wide just barely fits. Also, when I run on my desktop browser, it also says my screen is 640x480. I can assure you, it is not 640x480! ha!

  How does anyone reliably get the browser's screen size?? Do I have to revert to some kind of JavaScript? If so, where can I read more about it? Will it be any more reliable? Someone must have an idea about this. Thanks in advance!!

How to detect mobile phone name/model no from asp.net?


Hi experts,

Can I detect the Name/model no of the mobile phones ,which are browsing my asp.net website from C# code behind? I need to show welcome message, addressing their model numbers and redirect to appropriate pages.

Thanks in advance for your reply.


Create web site specific to mobile device, how to detect?



I have a website that is written in .Net 2.0 which uses all the nice rich functionality of the web (Ajax, javascript etc..).  However I have noticed that the site does not display very well on mobile devices. 

So therefore I would like to create a more streamlined version of my site that is better tailored to these devices.  However how do detect that the user has come to the site via a mobile device and how can i redirect them to my tailored page

Many thanks in advance

How to detect Mobile devices like Pocket PC??

Hi all,
Need help on this. As you know there is PDA-phone like Pocket PC-phone run on Window Mobile 2003 and above. It has Ms Internet Explorer of scale down version.

So, the question is this kind of device is under mobile device category but having IE browser. So, how to detect this kind of MObile device using MobileCapabilities class?  YOu see, SmartPhone also have Ms IE browser. How to tell them apart?? If I serve Pda-html website to SmartPhone, its screen size will be too small for it.

My objective is this : to detect the PDA device and Mobile Phone .

If it is PocketPC-phone, I will serve PDA-html website or Mobile web base on customer selection.
If it is smartphone or WAP 2.0 -base mobile phone, I will serve  Mobile Web.

please help.

Extreme ASP.NET: Search Engine Optimization with ASP.NET 4.0, Visual Studio 2010 and IIS7


In this article, the author takes a look at SEO practices that the reader can apply when using the latest Microsoft Web technologies.

Scott Allen

MSDN Magazine September 2009

No More Hangs: Advanced Techniques To Avoid And Detect Deadlocks In .NET Apps


You can combat deadlock using a combination of disciplined locking practices which Joe Duffy aptly explains in this article.

Joe Duffy

MSDN Magazine April 2006

Memory Lane: Rediscover the Lost Art of Memory Optimization in Your Managed Code


Managed applications rely on the garbage collector in the .NET Framework to allocate and clean up memory. The little CPU time spent performing garbage collection (GC) is usually a fair trade-off for not having to worry about memory management. But for applications in which CPU time and memory are precious resources, minimizing the time spent garbage collecting can greatly improve application performance and robustness. Find out how to manage memory all over again.

Erik Brown

MSDN Magazine January 2005

Debug: Detect and Plug GDI Leaks in Your Code with Two Powerful Tools for Windows XP


In a previous article, the author devised a simple method to detect Graphical Device Interface (GDI) objects that are not properly released by Win32-based applications on Windows 9x platforms. Because some newer versions of Windows require a slightly different approach to GDI leaks, the author has updated his techniques for those operating systems. He builds and explains two tools designed to detect and eradicate GDI leaks in applications running on Windows XP, Windows 2000, and Windows NT.

Christophe Nasarre

MSDN Magazine January 2003

Tamper-Resistant Apps: Cryptographic Hash Algorithms Let You Detect Malicious Code in ASP.NET


Cryptographic hash algorithms produce fixed-length sequences based on input of arbitrary length. A given input always produces the same output, called a hash code. Using these algorithms, you can compute and validate hash codes to ensure that code running on your machine has not been tampered with or otherwise changed. ASP.NET provides a software mechanism for validating hash code fingerprints for every page requested by a client. In this article, the author shows how to use hash codes with ASP.NET applications to detect tampering and prevent malicious code from running when tampering is detected.

Jason Coombs

MSDN Magazine September 2002

Autoplay in Windows XP: Automatically Detect and React to New Devices on a System


The last few years have seen dramatic growth in digital multimedia content and an increasing number of devices generating such content. Accordingly, the Autoplay feature of Microsoft Windows has been enhanced to handle these scenarios. This article presents samples that use the new features and provides advice on how to take advantage of these additions. The topics covered include Autoplay support for audio CDs and for DVD movies, the Autoplay registration process, event handlers, and how your software can cancel Autoplay when you don't want certain files interrupted. The download includes tools for diagnosing problems and to help the reader understand the shell hardware detection service processing of hardware events.

Stephane St-Michel and Brian Aust

MSDN Magazine November 2001

Adding Accelerometer to Detect Shake Gesture




How to detect and prevent new browser instance


Hi Folks,

I have a problem w/ a web app which is probably fairly common, but I cannot find any solutions anywhere. Hopefully someone will have an idea.

The web app in question provides a UI for editing a client (in the business sense, not the browser sense), identified by a ClientID.  I store the ClientID in Session, which gets passed from page to page, along with a number of other pieces of data in Session.  Works great.

The problem is that if the user opens a new browser window using Ctrl N or File->New Window (in IE), the new window comes up with the same page as the current page, with the same session info. Then if the user navigates to a different client in the 2nd window, the ClientID in session refers to the new client. If they go back to the original browser window and save, the original client gets saved using the 2nd ClientID, and all hell breaks loose, because now the data from the two jobs are intertwined.

I have enabled trace and verified that the new browser window uses the same SessionID as the original.  If an entirely new instance of IE is opened, it has a different SessionID, so is not a problem.  I have not yet investigated other browsers, such as Chrome or Firefox.

Is there any way to determine if a browser instance is opened for a web app which is already open in

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend