The Whys and Wherefores of the Ubuntu Kernel Config
This page is intended to list factors which have led to specific options being selected where those reasons may not be obvious. More recent releases the complete configuration has been reviewed and the current status with proposed changes recorded.
Release Configurations
Ubuntu Maverick Meerkat 10.10
https://blueprints.launchpad.net/ubuntu/+spec/kernel-maverick-config-review https://wiki.ubuntu.com/KernelTeam/Specs/KernelMaverickConfigReview
Ubuntu Lucid Lynx 10.04 LTS
https://blueprints.launchpad.net/ubuntu/+spec/kernel-lucid-kernel-config-review https://wiki.ubuntu.com/specs/KernelLucidKernelConfigReview
Ubuntu Karmic Koala 9.10
https://blueprints.launchpad.net/ubuntu/+spec/kernel-karmic-kernel-config-review https://wiki.ubuntu.com/specs/KernelKarmicKernelConfig
Ubuntu Jaunty Jackalope 9.04
Jaunty: https://wiki.ubuntu.com/KernelTeam/2.6.28-2-generic-config
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE
Somewhat counter intuitively the kernel default performance governer us Performance. This is that boot time is measurably faster with this governer. Although this is the default, early userspace switches us to the users chosen governer defaulting to OnDemand.