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Microsoft Windows Dynamic Cache Service

Excessive cached read I/O is a growing problem. For over one year we have been working on this problem with several companies. You can read more about it in the original blog post: http://blogs.msdn.com/ntdebugging/archive/2007/11/27/too-much-cache.aspx Read More...
Posted Friday, February 06, 2009 2:20 PM by ntdebug | 8 Comments
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Understanding NTFS Compression

As our group’s file systems expert, I see most of the common problems associated with the use/misuse of NTFS compression. Before you check the “Compress contents to save disk space” checkbox, it might be good to understand how this affects the happy little Read More...
Posted Tuesday, May 20, 2008 8:04 PM by ntdebug | 3 Comments
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Work Queues and Dispatcher Headers

Introduction Hi everyone, Bob here again with a description of Work Queues and Dispatcher Headers. For those of you that look at dumps, you may have noticed that there are always threads waiting at KeRemoveQueue . You may have wondered what this function Read More...
Posted Wednesday, May 07, 2008 10:55 PM by ntdebug | 1 Comments
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The default interactive desktop heap size has been increased on 32-bit Vista SP1

This is going to be a short blog post, but considering the amount of feedback we’ve received on the our two previous desktop heap posts , I think this is worth blogging about. 32-bit Vista SP1 and 32-bit Windows Server 2008 both have a new value for the Read More...
Posted Thursday, March 20, 2008 5:23 PM by ntdebug | 5 Comments
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How to find the owner of a Named Pipe

This is a follow-up on the LPC hang blog . The same hang troubleshooting techniques apply to this, but when a named pipe is involved you’ll have to use a slightly different method to following the chain from a client application to the server application. Read More...
Posted Tuesday, March 18, 2008 2:09 PM by ntdebug | 1 Comments
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Too Much Cache?

Cache is used to reduce the performance impact when accessing data that resides on slower storage media. Without it your PC would crawl along and become nearly unusable. If data or code pages for a file reside on the hard disk, it can take the system Read More...
Posted Tuesday, November 27, 2007 3:46 PM by ntdebug | 19 Comments
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The Memory Shell Game

Hello, this is Somak. Today I’d like to drop some Memory Manager info on the blog that I’ve used to communicate in brief (believe it or not) how the system deals with memory. If you are ever faced with checking how much Available Memory you have(or don’t Read More...
Posted Wednesday, October 10, 2007 6:14 PM by ntdebug | 11 Comments
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LPC CASE2 – When things are not rosy

Hello, this is Roy again. In this case we will discuss a scenario where tracing a hung client thread is not possible through LPC data structures and extensions. We would rather use hints from the LPC message sent about the operation that was taking place Read More...
Posted Friday, September 14, 2007 8:38 PM by ntdebug | 1 Comments
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Talkback video: Desktop Heap

Hello, Matthew here again. Starting today, my team will be bringing you content in the form of videos, as well blog posts. We’ll be hosting these videos on Channel 9 , and we’ll link them from the ntdebugging blog. One way that we’ll be using video is Read More...
Posted Thursday, September 13, 2007 2:29 PM by ntdebug | 3 Comments

LPC (Local procedure calls) Part 1 architecture

Hello, my name is Roy. I’m an Escalation Engineer in the CPR platforms team. I’ll be doing a four part series on LPC over the coming month. You’re sure to find this interesting. That being said let’s get started. Disclaimer: The purpose of this blog is Read More...
Posted Thursday, July 26, 2007 12:56 PM by ntdebug | 3 Comments
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Desktop Heap, part 2

Matthew here again – I want to provide some follow-up information on desktop heap . In the first post I didn’t discuss the size of desktop heap related memory ranges on 64-bit Windows, 3GB, or Vista. So without further ado, here are the relevant sizes Read More...
Posted Thursday, July 05, 2007 4:04 PM by ntdebug | 20 Comments

How Windows Starts Up (Part the second)

Howdy folks, David here again with part two of How Windows Starts Up. Today we’ll be covering the Boot Loader Phase . Let’s take a moment to recap where we are at this point. So far, the computer has completed POST, executed the MBR code, located the Read More...
Posted Thursday, June 28, 2007 5:13 PM by ntdebug | 6 Comments
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Desktop Heap Overview

Desktop heap is probably not something that you spend a lot of time thinking about, which is a good thing. However, from time to time you may run into an issue that is caused by desktop heap exhaustion, and then it helps to know about this resource. Let Read More...
Posted Thursday, January 04, 2007 5:40 PM by ntdebug | 92 Comments
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