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What is the resolution of the xnu kernel function clock_get_time for CALENDAR_CLOCK?
据我所知，OS X在 x86 上使用TSC 。这使得精确粒度处理器特定，但几乎可以肯定“足够好”用于几乎所有目的。要获得明确的答案，请查看源代码...</p>