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Tickless kernel

Summary

Make the default x86_64 kernel tickless.

Owner

Names: DaveJones, IngoMolnar

Current status

Last modified: [[DateTime(2007-08-20 T19:00:03Z)]
Targeted release: Fedora 8
Percentage of completion: 100%

x86_64 tickless is now in rawhide.

Detailed Description

Benefit to Fedora

Improves power management by not waking up 100 (or 1000, or whatever) times a second.

Scope

Kernel changes

Test Plan

Examine built kernel config, make sure CONFIG_NO_HZ is set.
Boot kernel ; use powertop or similar software to determine that it is running in a tickless manner.

User Experience

Should not affect user's experience in a noticeable way, aside from increasing battery life.

Dependencies

Depends on upstream kernel work.

Contingency Plan

Back out the tickless patch, or build without CONFIG_NO_HZ

Documentation

Should not be needed.

Release Notes