Joakim Tjernlund wrote:
Trying to understand what is needed to make nanosleep() and friends to have better resolution than HZ on my 83xx CPU. Is this possible and what CONFIG options do I need to enable? Kernel is 2.6.25
Should be possible with CONFIG_HIGH_RES_TIMERS=y.
What about NO_HZ? Does that setting change anything?
It is independent from HRT and selects the mode where the idle process stops timer HZ interrupts from occuring until it's scheduled off CPU.
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