Windows operating system comes with both Kernel and User modes, but not everyone knows the difference between both. In fact, most users have no idea these modes exist, but yet they’ve used them before ...

Kernel Mode Linux (KML) is a technology that enables the execution of ordinary user-space programs inside kernel space. This article presents the background, an approach and an implementation of KML.

Editor's Note: This content is excerpted from Chapter 11 of Linux Debugging and Performance Tuning: Tips and Techniques, authored by Steve Best, ISBN 0-13-149247-0 ...

perfmon says that 'Kernel Current URIs Cached = 2 (average) and that 'Output Cache Current Items' = 3000-4000 (average) I think that this means that almost all of the objects are in the User Mode ...