[$] Power-efficient workqueues

Post Syndicated from corbet original https://lwn.net/Articles/731052/rss

Power-efficient workqueues were first introduced in the
3.11 kernel release; since then, fifty or so
subsystems and drivers have been updated to use them. These workqueues
can be especially useful on handheld devices (like tablets and
smartphones), where power is at a premium.
ARM platforms with power-efficient workqueues enabled on Ubuntu and
Android have shown significant improvements in energy consumption (up to
15% for some use cases).