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In this article we will be looking at the impact of
CONFIG_NO_HZ/Dynamic Ticks, which will be found in the Linux 2.6.21
kernel.
The option has been available as a patch for quite a while, but not until
Linux 2.6.21-rc1 had it been merged into the upstream kernel. When
enabled, there will only be timer ticks when they are needed. The end-user
benefit is cooler-running processors and increased power savings. We have
investigated this change with a notebook and desktop computer.
Link: phoronix
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