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Wednesday, October 20, 2010

Microsoft SQL Server 2008 Setup SQL Server 2008 Setup requires .NET Framework 3.5 to be installed.

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I get an error today, when I try to install sql server 2008 on one windows server 2008. The .net Framework 3.5  is there already. you can te...
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Monday, October 18, 2010

Install Squid cachemgr.cgi to IIS 7 (IIS comes with windows 7 or server 2008)

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Copy the cachemgr.cgi to the IIS working folder. 1. turn on the CGI features for IIS 7 (Turn windows features on or Off )  , run “Op...
Thursday, October 14, 2010

Windbg, Script to Extract All HttpRequest URLs of a memory dump

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Case, You get a Dump from a live proudction Server, (which has some performance problem for some real cusomters. ), at first you want to dum...
Wednesday, October 13, 2010

Windbg tips, Dump all Objects with the same type loop with .foreach

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Case, there are a lot Memory get used by some objects with the same type.  let’s say the type is String here, how can we dump all those stri...
Tuesday, October 12, 2010

.NET GC Large Objects, CPU intensive.

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you may get the following symbol, “CPU is high , around 40-50% percent, Memory usage is reasonable or very low” cause? could be the GC pro...
Monday, October 11, 2010

Identifying High CPU in GC caused By Json.NET Newtonsoft.Json.JsonReader.ParseString windbg

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just get a high CPU case, Here is the way I narrow down the issues. Problems: IIS get high CPU, even only small requests been forwarded to...
Thursday, October 7, 2010

Install Ruby on windows 7 tutorial

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Download the MSI file from ruby site. http://rubyinstaller.org/downloads/ , (there is no 64 bit version of ruby, so just chose the version w...