DTrace is one of the most powerful features in Solaris 10. In a nutshell, DTrace allows you to troubleshoot systemic problems in real time. There is an online documentation for DTrace, but sometimes all you need is a simple example of how DTrace works in the real world.
Paul van den Bogaard at Sun Microsystems has recently published a step-by-step guide which explains how DTrace can be used to resolve the pauses you might experience when trying to log onto a system through SSH. After a short introduction to DTrace and a presentation of the problem, Paul takes through you the process of investigating and resolving the issue with DTrace. He goes through the scripting process and the subsequently generated output in great detail.
This 20-odd page article is very well written and very interesting to read -- you won't fall asleep. If you do, drop me a line/comment :)
» Download "DTrace by Example: Solving a Real-World Problem" (PDF)
Other DTrace resources:
DTrace by Example: Why is it taking so long when I log onto the system through SSH?
Posted by : Dr. Root | 07 February, 2007 | Published in
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