Reduce Linux power consumption, Part 2: General and governor-spe...

Reduce Linux power consumption, Part 3: Tuning results
IBM Developerworks: "In Part 3, the author compares the performance of the five in-kernel governors in both tuned and untuned states to show you how to optimize a Linux-based System x server."

Manage resources on overcommitted KVM hosts
IBM Developerworks: "A key benefit of virtualization is the ability to consolidate multiple workloads onto a single computer system. This consolidation yields savings in power consumption,...

Linux introspection and SystemTap: An interface and...
IBM Developerworks: "Summary: Modern operating system kernels provide the means for introspection, the ability to peer dynamically within the kernel to understand its behaviors. These...