Advanced Linux System Statistics and Diagnostics with SystemTap

In one of the first posts of this blog I covered some basic SystemTap functionality from an email that I sent to members of my team, but I have always felt that I haven't given SystemTap as thorough of an article as this incredible tool deserves. Today I want to correct that. For today's article I will show how to compile SystemTap scripts on one server while running the compiled module on a production server without installing debug-info or devel packages in production....

 · 6 min · Benjamin Cane

Troubleshooting High I/O Wait in Linux

Linux has many tools available for troubleshooting some are easy to use, some are more advanced. I/O Wait is an issue that requires use of some of the more advanced tools as well as an advanced usage of some of the basic tools. The reason I/O Wait is difficult to troubleshoot is due to the fact that by default there are plenty of tools to tell you that your system is I/O bound, but not as many that can narrow the problem to a specific process or processes....

 · 8 min · Benjamin Cane