DotNetKicks.com - Stories tagged with Performance

ASP.NET Performance: High CPU Utilization Case Studies And Solutions

Tue, 12 Aug 2008 11:55:23 GMT

This post shares case studies of high CPU utilization of ASP.NET web sites. High CPU utilization was caused by lack of batch compilation, multiple folders, and use of XmlSerializer. In all cases the result was high CPU and poor performance; the symptom was .NET CLR Loading\Current Assemblies counter showing "unusual" number of loaded assemblies.

Detailed code metrics with NDepend

Fri, 30 May 2008 08:01:12 GMT

A while ago, I blogged about code performance analysis in Visual Studio 2008. Using profiling and hot path tracking, I measured code performance and was able to react to that. Last week, Patrick Smacchia contacted me asking if I wanted to test his project NDepend. He promised me NDepend would provide more insight in my applications. Let's test that!

How to check if a string is empty

Fri, 16 May 2008 22:26:27 GMT

Interesting article that shows different ways of checking if a string is empty and explains the pros and cons.

Fast web page loading by defering and combining multiple javascripts

Mon, 12 May 2008 14:01:12 GMT

A web page can load a lot faster and feel faster if the Javascripts files referenced on the page can be loaded after the visible content has been loaded and multiple Javascripts files can be batched into one download. This handy technique combines external javascripts references into one script tag and serves multiple javascripts using a Http Handler.

Setting StringBuilder's Initial Capacity for Extreme Performance

Thu, 08 May 2008 13:28:42 GMT

You must have come across plenty of articles on the internet which talk about using the StringBuilder class when computing large strings for performance gains. Nothing wrong with that. However I have not seen many coders using the Initial Capacity constructor of the StringBuilder class which can further result in EXTREME PERFORMANCE.

ASP.NET Performance Engineering - Stress Test Your Architecture, Desig

Mon, 05 May 2008 10:42:11 GMT

Field experience proves - the earlier performance is tackled in development lifecycle the better results achieved. Below are most frequent practices that were most helpful in my engagement with the customers.

How the Garbage Collector works - Part 2

Sat, 03 May 2008 14:46:56 GMT

Now let's go deeper to understand how the Garbage Collector (GC) is actually collecting the dead objects and how this may affect the performance.

How the Garbage Collector works - Part 1

Sat, 03 May 2008 11:37:35 GMT

The Garbage Collector (GC) can be considered the heart of the .NET Framework. It manages the allocation and release of memory for any .NET application. In order to create good .NET applications, we must know how the Garbage Collector (GC) works.

ASP.NET Performance Sin - Serving Images Dynamically (Or Another Reaso

Fri, 02 May 2008 13:20:28 GMT

Serving images dynamically may cause performance hit. Dynamically served images require more HTTP requests which violates Steve Souders' performance rule #1 - Make Fewer HTTP Requests. The latency is also caused by parallelism (or parallel downloading) limitations as described in detail here Performance Research, Part 4: Maximizing Parallel Downloads in the Carpool Lane

10 Tips to improve your LINQ TO SQL Application Performance

Fri, 02 May 2008 14:46:03 GMT

Sidar gives performance tips on developing linq 2 sql

Spring.AOP, Castle.DynamicProxy2 - first glance from an outsider

Wed, 30 Apr 2008 21:58:16 GMT

A first look at the two "aspect oriented" frameworks and a rough indicator what it means performance-wise to use them.

WPF performance profiling tools

Wed, 30 Apr 2008 20:46:10 GMT

The WPF Performance Suite is a set of performance profiling tools that allow you to analyze the runtime behavior of your WPF application.

Performance Sin - Chatty Database Access And Loops (Plus Another Free

Mon, 28 Apr 2008 18:18:26 GMT

Chatty database access is the surefire way for slow performance caused by resources starvation that might even lead to denial of service.

Build Scalable ASP.NET Websites using Asyncronous Programming Models

Fri, 25 Apr 2008 16:10:35 GMT

Excellent MSDN Webcast on how to use Asynchronous Programming model in your ASP.NET 2.0 pages to avoid using up all your threads from threadpool for some lengthy operation (remote web service call, remote sql server query etc).. A must-watch!

IIS7 Admin Pack Offers Built In Performance Analysis Reports

Tue, 22 Apr 2008 10:56:37 GMT

You need an ad-hoc simple-to-use tool to analyze your web site behavior under load during development, testing, and maintenance phases.

Improve .Net Applications Performance Effectively And Efficiently

Tue, 22 Apr 2008 10:55:33 GMT

How to anticipate or better off avoid performance related "surprises" during load and stress testing? Apply performance engineering practices throughout SDLC (Software Development LifeCycle). Here are major talking points, tools, resources, and further reading.

Why do ASP.NET AJAX page methods have to be static?

Wed, 16 Apr 2008 13:16:03 GMT

A thorough explanation of why ASP.NET AJAX page methods must be static methods, including information about the Page class, ViewState serialization, and what a static method actually is.

IoC Container Benchmark

Tue, 15 Apr 2008 11:46:02 GMT

Performance benchmark of Unity, Windsor, StructureMap and Spring.NET. Interesting.

IE8 vs Firefox 3.0b5 : Javascript Part1

Thu, 17 Apr 2008 17:46:02 GMT

First Javascript Speed tests of IE8 vs Firefox 3.0b5 using Dromaeo.

Fast page loading by moving ASP.NET AJAX scripts after visible content

Wed, 09 Apr 2008 20:54:23 GMT

Learn how to move all scripts on a page at the end of the body content so that page content is displayed much faster and the scripts download behind the scene without blocking browser rendering. Get a fast loading website with this simple ASP.NET Response Filter.

Reduce website download time by heavily compressing PNG and JPEG

Wed, 09 Apr 2008 20:14:22 GMT

Use some advance compression tools like OptiPNG, AdvPNG and jpegtran to compress PNG and JPEG on your site and save 30% to 50% download time. See some handy powershell scripts than can run these tools on all your png and jpeg files and compress them all at once.

Employee Info ASP.NET Starter Kit

Wed, 09 Apr 2008 09:42:46 GMT

This is a starter kit, which includes very simple user requirements, where we can create, read, update ad delete (crud) the employee info of a company. The primary purpose of this starter kit is, to provide a solid guideline with respect to building enterprise level projects, by utilizing new asp.net 2.0 and sql server 2005 features, as well as latest best coding practices. The starter kit includes several cases where we can perform multi-table joining and/or write operations. Combining high performance and security features this starter kit shows how we can solve in real world problems and challenges, from a wide range of view point.

So, how expensive is it to let Castle Windsor / Spring.NET make my obj

Fri, 04 Apr 2008 17:46:07 GMT

I was getting increasingly curious about the overhead of using a Dependency Injection-container to provide me with instances of my objects. With overhead I mean if and how much longer it takes for the DI container to provide me with the desired instance.

How to remove duplicate Whitespace Characters from a string?

Thu, 03 Apr 2008 15:03:05 GMT

Luckily for us developers .NET has some very slick string handling routines we can use for this task. Also we have an alternative approach: Regular Expressions. We will cover here both implementations and compare them regarding their efficiency.

Boosting performance on aspx pages

Mon, 31 Mar 2008 15:00:34 GMT

Most of internet tutorials tells you to use Page Load event to bind your data to controls. What's happening when you have to rebind controls again because your data source is changed due to some event where you have to re bind controls.