Messages in this thread | | | Date | Tue, 27 Oct 2015 14:49:14 -0700 | From | Leonid Yegoshin <> | Subject | Re: [v3, 3/3] MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime() |
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> For example, On OCTEON single-chip systems we synchronize the the > counters and they don't drift. So, we can use CPO.Count. However, on > two-chip NUMA configurations there may be clock drift between the two > chips, so CPO.Count cannot be used as a clocksource. We have a single > kernel image that runs on both types of systems, so we have to be able > to enable/disable the gettimeofday() acceleration. > Much more interesting the situation then there are a different clock frequency in different CPUs.
It seems for me that per-thread memory idea may be required soon.
- Leonid
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