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https://www.kernel.org/doc/html/v5.4-rc8/timers/hrtimers.html
hrtimers - testing and verification¶ We used the high-resolution clock subsystem ontop of hrtimers to verify the hrtimer implementation details in praxis, and we also ran the posix timer tests in order to ensure specification compliance. We also ran tests on low-resolution clocks.
https://www.kernel.org/doc/html/latest/timers/index.html
hrtimers - subsystem for high-resolution kernel timers; NO_HZ: Reducing Scheduling-Clock Ticks; Clock sources, Clock events, sched_clock() and delay timers; delays - Information on the various kernel delay / sleep mechanisms; Serial Peripheral Interface (SPI) 1-Wire Subsystem; Linux Watchdog Support; Linux Virtualization Support; The Linux ...
https://www.mjmwired.net/kernel/Documentation/timers/hrtimers.txt
This will return whatever real resolution 146 a given clock has - be it low-res, high-res, or artificially-low-res. 147 148 hrtimers - testing and verification 149----- 150 151 We used the high-resolution clock subsystem ontop of hrtimers to verify 152 the hrtimer implementation details in praxis, and we also ran the posix 153 timer tests in ...
https://everylwn.blogspot.com/2015/08/greedy-hrtimer-expiration.html
Oct 04, 2011 · Greedy hrtimer expiration. By Jonathan Corbet October 4, 2011. High-resolution timers (hrtimers) can be used to invoke kernel code after a precisely-specified time interval; unlike regular kernel timers, hrtimers can be reliably used with periods of microseconds or nanoseconds. ... When the hrtimer code was extended to support range timers ...
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.576.453
This paper pro-vides details on the hrtimers implementation and describes how the clock events component will complement and complete the hrtimers and timeofday components to create a solid foun-dation for architecture independent support of high-resolution timers and dynamic ticks. 1
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