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How To Generate Unit Test Using WCF Load Test – Quick Steps

      This is quick summary of steps for creating WCF Unit Tests using WCF Load Test available for free on Codeplex. This quick summary created based on the Lab materials that ship with the tool . Quick Resource Box WCF Load Test Summary Read More...

Posted 29 June 09 09:13 by alikl | 2 Comments   
Filed under WCF, Test Phase

DebugView - Free Simple Tool To Quickly Identify Performance Problems

     DebugView is well known free tool from Systinternals (Microsoft) . Vast majority of developers is aware of its existence. Nevertheless, I've decided to write this post following my practice of journaling my technical accomplishments Read More...

Posted 11 November 08 05:12 by alikl | 4 Comments   
Filed under Test Phase, Development Phase, Performance

ASP.NET Performance: Dynamically Loaded Assemblies Cause Application Recycles (Problem and Solution)

      In my speak - dynamically loaded assemblies are those assemblies that were compiled during run time dynamically via CodeProvider like CSharpCodeProvider directly or by using types that use this class internally. Assemblies that Read More...

Posted 08 October 08 04:21 by alikl | 4 Comments   
Filed under Test Phase, Implementation, Performance

ASP.NET Data Binding Performance – Collection Is More Expensive Than Datatable

In my previous post - Best ASP.NET Performance Winner For Data Binding - Hands Up To Response.Write() – I’ve conducted several simple performance tests for data binding to GridView in ASP.NET page. What surprised me most is that eliminating massive loops Read More...

Posted 01 August 08 02:40 by alikl | 4 Comments   
Filed under Test Phase, Implementation, Performance, Planning Phase

Best ASP.NET Performance Winner For Data Binding - Hands Up To Response.Write()

     To achieve best performance you need to make decisions based on trade-off between coolness, coding productivity, and personal engineering values. I never thought I would be recommending my customer considering using old fashion Read More...

Posted 31 July 08 03:29 by alikl | 21 Comments   
Filed under Test Phase, Development Phase, Implementation, Performance, Planning Phase

Security Code Review – String Search Patterns For Authorization Vulnerabilities

These are the questions and the search criteria I use to identify authorization vulnerabilities in the code beyond web.config <authorization> node. How does the code protect access to page classes? Attributes Search for PrincipalPermission attributes. Read More...

Posted 24 July 08 10:53 by alikl | 1 Comments   
Filed under Test Phase, Security, Authorization

Security Code Review – String Search Patterns For Authentication Vulnerabilities

This post contains string search patterns that can help identifying authentication vulnerabilities during security code inspection for your ASP.NET application . Most common vulnerability is about insecurely manipulating credentials in the code. The question Read More...

Posted 21 July 08 03:39 by alikl | 0 Comments   
Filed under Test Phase, Security, Authentication

Use FREE Tools From IIS Resource Kit To Warm Up Your ASP.NET 1.1 Application By Batch Compilation

Have you noticed that when ASP.NET web application is accessed for the first time the response is slow? The reason for such behavior is batch compilation that occurs on the first hit. ASP.NET batch compilation is the process of compiling ASP.NET markup Read More...

Posted 20 July 08 06:24 by alikl | 5 Comments   
Filed under Test Phase, Implementation, Deployment Phase, Performance

Security Code Review – String Search Patterns For Finding Input Validation Vulnerabilities

Well defined set of search patterns helps significantly reduce time (cost) when performing security code inspections. This post focuses on input validation vulnerabilities commonly found in ASP.NET web applications. SQL Injection and Cross Site Scripting Read More...

Posted 11 July 08 02:24 by alikl | 2 Comments   
Filed under Input Validation, Test Phase, Security, Tools

ASP.NET Performance Sin - Serving Images Dynamically (Or Another Reason To Love Fiddler)

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) Read More...

Posted 02 May 08 02:12 by alikl | 7 Comments   
Filed under Test Phase, Tools, Development Phase, Implementation, Performance, Planning Phase

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

Chatty database access is the surefire way for slow performance caused by  resources starvation that might  even lead to denial of service. Following is a real world case. Customer Service Unavailable message is consistently observed when there Read More...

Posted 28 April 08 01:31 by alikl | 8 Comments   
Filed under Test Phase, Deployment Phase, Performance

Free Performance Tool - Analyze IIS Logs Like A Pro With Funnel Web Analyzer

These free performance tools will save you time and money identifying performance bottlenecks. Your customers will thank you for building fast and responsive applications. Funnel Web Analyzer 5.0 for Windows Download the tool here. Analyzer gives insight Read More...

Posted 21 April 08 11:16 by alikl | 10 Comments   
Filed under Test Phase, Tools, Development Phase, Performance

Quickly Find And Fix Cross Site Scripting (XSS) Vulnerabilities In Your ASP.NET Application.

Want to quickly check your ASP.NET Web application for Cross Site Scripting (XSS) vulnerability ? It is pretty easy with the knowledge and tools you already have. This post describes how to quickly find and fix most of XSS vulnerabilities in your code. Read More...

Posted 17 March 08 03:56 by alikl | 2 Comments   
Filed under Input Validation, Test Phase, Security, Tools

Stress Test ASP.NET Web Application With Free WCAT Tool

Building ASP.NET web applications? Plan to serve thousands of users? Would you like to see how your application would behave [misbehave] under stress? Use simple-to-use and freely available WCAT tool to generate the load and get detailed report for expected Read More...

Posted 09 March 08 08:59 by alikl | 12 Comments   
Filed under Test Phase, Tools, Performance

Performance Sin - Using Exceptions To Control Flow

Want to spot coding anti-patterns from performance perspective without actually looking in the code? One of the common performance coding anti-patterns I’ve noticed lately is using Exception Handling to control program flow. The anti-patterns Most Read More...

Posted 02 February 08 01:19 by alikl | 4 Comments   
Filed under Test Phase, Tools, Development Phase, Performance, Practices, Exception Handling

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