Lines Matching +full:real +full:- +full:time

32 Kernel uses several types of time-related devices, such as: real time clocks,
33 time counters and event timers.
34 Real time clocks responsible for tracking real world time, mostly when system
36 Time counters are responsible for generation of monotonically increasing
38 Event timers are responsible for generating interrupts at specified time or
39 periodically, to run different time-based events.
42 Kernel uses time-based events for many different purposes: scheduling,
43 statistics, time keeping, profiling and many other things, based on
47 .Bl -tag -width ".Fn hardclock"
65 that hardware, and to use it, supplying kernel with all required time-based
72 .Bd -literal
89 .Bl -inset
93 .Bl -tag -offset indent -width indent -compact
97 one-shot mode supported,
99 timer is per-CPU,
103 timer supports only power-of-2 divisors.
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120 allows to choose periodic and one-shot operation mode.
122 only source of time for time events.
123 One-shot mode instead uses currently selected time counter to precisely
125 exactly in specified time.
126 Default value depends of chosen timer capabilities, but one-shot mode is
141 If chosen timer is per-CPU
142 and runs in periodic mode, this option has no effect - all interrupts are