[每天一个Linux小技巧]　查看时钟源精度

$ dmesg | grep clock

[0.000000] OMAP clocksource: GPTIMER1 at 24000000 Hz 
[0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms

这里的精度是41ns

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