ETag and IIS demystified

by rahul 3/17/2011 6:17:29 PM
Let me quote from Wikipedia straight away… <snip> An ETag, or entity tag, is part of HTTP, the protocol for the World Wide Web. It is one of several mechanisms that HTTP provides for cache validation, and which allows a client to make conditional requests. This allows caches to be more efficient, and saves bandwidth, as a web server does not need to send a full response if the content has not changed….. An ETag is an opaque identifier assigned by a web server to a specific version of a... [More]


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IIS 7 | IIS | Tips and Tricks | Performance

PowerShell Script to disable or enable services that consume resource on Windows 7 with SharePoint 2010 installed

by rahul 9/15/2010 9:14:58 PM
This is small follow-up post for SharePoint 2010 - Setup your development environment for Windows 7. The reason was Pedro's reply to the post who pointed that if you are indeed using your Windows 7 desktop for SharePoint 2010 development, the performance will not be up to the mark for general day to day purposes. I totally agree to this point, and I just hate when I see a service like IIS or SQL Server consuming my RAM for no reason [while I am not doing any SharePoint development]. Here is wh... [More]


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Download | Performance | SharePoint 2010

Missing Process counter from Available Counters in Perfmon

by rahul 2/18/2010 10:19:10 PM
Do you notice anything special in the list below? If you have been working with Perfmon enough, you will notice that the Process Counters are missing in the list below. Download a utility called Extensible Counter List from this link…. and run it. Select PerfProc and ensure that Performance Counters Enabled is checked. If it is not checked, check it. If you are not getting this checkbox at all, run this tool as an Administrator and you should be able to see it. Restart Perfmon after clo... [More]


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Troubleshooting | Tips and Tricks | Performance

Performance Monitor (Perfmon) counters for IIS - 4

by rahul 2/17/2010 8:35:15 PM
In part 1 of this series, I provided the BaseLine counter set for Windows 2k3. To close this loop for Win 2008, I am providing one more set of baseline counters for IIS. Download the following template and extract the XML file - IIS-BaseLine-Win-2k8.zip.     Start –> Run –> Perfmon     Right click on Data Collector Sets –> User Defined –> Select New –> Data Collector Set     Give a name, and ensure Create from a te... [More]


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Performance | Troubleshooting | IIS 7

Performance Monitor (Perfmon) Counters for IIS - 3

by rahul 1/26/2010 12:10:40 PM
In the last couple of posts you’ve seen collection and manual analysis of Performance data. In this post let’s automate the analysis using one of the really fantastic tools called PAL – Performance Analysis of Logs. Download it from CodePlex. Ensure that you have installed all the pre-requisites… 1. Log Parser 2.2 Log parser is a powerful, versatile tool that provides universal query access to text-based data such as log files, XML files and CSV files, as well as key data sources on the Win... [More]


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Performance | Troubleshooting | IIS

Performance Monitor (Perfmon) Counters for IIS - 2

by rahul 1/21/2010 11:37:40 AM
In my previous post, I have shown the configuration of perfmon counters. Let’s talk about how to analyze it now. Before you do anything else, read the following articles… IIS 6 Performance Counters Suggested Performance Counters to Watch (IIS 6.0) ASP.NET Performance Counters I know it is a lot of stuff to go through, but then to master drawing, you must learn about the brushes! To manually monitor some counters, you must add the .blg file that got created earlier when you stopped... [More]


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Performance | Troubleshooting | IIS

Performance Monitor (Perfmon) counters for IIS - 1

by rahul 1/21/2010 11:00:47 AM
If you consider troubleshooting as an art, Perfmon will be one of the brushes – almost like sable. If you master it well, you can not only tell a lot about your server’s performance, you will also be able to take a lot of actions pro-actively even before anything breaks down. In this post, let me quickly show how you can create various counters and set it up on your IIS/SharePoint Servers.     Click Start –> Run –> Perfmon (Click Ok)     Right click... [More]


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Performance | Troubleshooting

How to troubleshoot slow Page Rendering in ASP.NET?

by rahul 11/20/2009 2:49:44 PM
Before I answer this question, let us have a quick refresher. Answer this question diligently… Is Page_Render in ASP.NET really an EVENT? A BIG ZERO if you have said YES! The answer is No, It is not. Here is an excerpt from MSDN… <snip> This is not an event; instead, at this stage of processing, the Page object calls this method on each control. All ASP.NET Web server controls have a Render method that writes out the control's markup that is sent to the browser. If you create a custom... [More]


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ASP.NET | Tips and Tricks | Troubleshooting | Performance

Microsoft Visual Round Trip Analyzer

by rahul 11/13/2009 5:03:05 PM
If you are a web developer, and haven’t heard of VRTA yet, you should try downloading it from here. It is free and it depends on Microsoft Network Monitor. To have the real knowledge about this VRTA, read the following article - 12 Steps To Faster Web Pages With Visual Round Trip Analyzer. Using this tool is a fairly simple task. Start VRTA.     Select your network.  Since I am using a Laptop, I chose Wireless…     Click the green play button . Th... [More]


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Performance | Troubleshooting

LINQ Performance - Part 1 - LINQ to Collection

by rahul 1/27/2009 2:30:23 PM
There are multiple benchmarking results already out there for LINQ. The reason why I am doing this again is the because I have heard multiple times that the latest version of LINQ contains a lot of improvements. My current configuration is... Windows Server 2008 Enterprise SP 1Visual Studio 2008 SP14GB RAM System.Core version 3.5.30729.1 In this post, I will take a look at the results ONLY from LINQ to Collection (An array of strings). You can play around with the code and post other findings (... [More]


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.NET | LINQ | Performance

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