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With powerd_flags="-N", this makes powerd(8) exclude "nice" time when computing the CPU utilization. This makes it possible to prevent CPU-intensive "background" processes from spinning up the CPU. Note that only *userland* CPU usage belonging to "nice" processes is excluded; we do not track whether time spent in the kernel is on behalf of nice or non-nice processes, so kernel-intensive nice processes can still result in the CPU being sped up. MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D23868 |
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Makefile | ||
Makefile.depend | ||
powerd.8 | ||
powerd.c |