OpenSolaris

1. Community: DTrace
   1. Blogs
   2. Discussions
   3. Announcements
   4. DTraceToolkit
   5. DTrace Test Suite
   6. DExplorer
   7. Events
   8. Leaders
   9. Observers
   10. Files
   11. DTrace Network Provider
       1. CEC 2006 Demo
       2. Prototype #1
       3. Prototype #2
   12. Change Log
   13. Providers for various shells
   14. DTrace Mozilla/JavaScript

OpenSolaris Community: DTrace

View the leaders for this community
Community Observers

• Chime Visualization Tool for DTrace
  
• DTrace Provider for NFSv4
  
• Mozilla DTrace
  

An Overview of DTrace DTrace is a comprehensive dynamic tracing framework for the Solaris™ Operating Environment. DTrace provides a powerful infrastructure to permit administrators, developers, and service personnel to concisely answer arbitrary questions about the behavior of the operating system and user programs. The Solaris™ Dynamic Tracing Guide describes how to use DTrace to observe, debug and tune system behavior. The Solaris™ Dynamic Tracing (DTrace) Guide (here), also includes a complete reference for bundled DTrace observability tools and the D programming language. For Users: dynamically enable and manage thousands of probes dynamically associate predicates and actions with probes dynamically manage trace buffers and probe overhead examine trace data from a live system or from a system crash dump For Solaris™ Developers: implement new trace data providers that plug into DTrace implement trace data consumers that provide data display implement tools that configure DTrace probes For more information check out the out scripts and documentation. Getting Started See Chapter 1 of the DTrace Guide Bryan Cantrill's original Newsgroup Posting Read the DTrace Intro Many links are on BigAdmin DTrace Site How to get started Guide James Dickens What is DTrace Discussions Join the OpenSolaris DTrace Discussion For Reference Only, see the BigAdmin Forum Find Q&As in the XPerts Session Scripts Download the DTraceToolkit Brendan Gregg's DTrace Tools Visit DTrace Scripts on OpenSolaris Richard McDougall's DTrace Scripts Documentation DTrace Guide from docs.sun.com DTrace Topics from SolarisInternals.com The Solaris Performance and Tools book Technical Papers USENIX DTrace Paper Examples A few worked DTrace Examples Jay Danielsen's DTrace Case Study Dragan Cvetkovic's Example of USDT in SAX Related Projects DTrace Provider for NFSv4 DTrace Providers for various shells

Blogs

bmc - Catching disk latency in the act

Dec 31, 4:57 PM

Today, Brendan made a very interesting discovery about the potential sources of disk latency in the datacenter. Here's a video we made of Brendan explaining (and demonstrating) his discovery: This ...

brendan - Unusual disk latency

Dec 31, 4:30 PM

The following screenshot shows two spikes of unusually high disk I/O latency, which has seriously hurt throughput performance: This screenshot is from Analytics on the 7410 . The issue is not with ...

brendan - JBOD Analytics example

Dec 31, 12:19 AM

The Analytics feature of the Sun Storage 7000 series provides a fantastic new insight into system performance. Some screenshots have appeared in various blog posts posts , but there is a lot more of ...

tpenta - Christmas All Year Through

Dec 21, 4:13 PM

Merry Christmas! During the last month I've participated in an amazing collaboration. The result of which is the release of a song involving 22 Second Life Artists from all over the world. Below is a ...

brendan - Up to 2 Gbytes/sec NFS

Dec 15, 7:55 PM

In a previous post , I showed how many NFS read ops/sec I could drive from a Sun Storage 7410, as a way of investigating its IOPS limits. In this post I'll use a similar approach to investigate ...