How do you determine the minimum timer resolution for a timerfd+EPOLL timer solution?

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I am using timerfd_create/timerfd_settime/EPOLL to create timers in my application. According to the EPOLL documentation if a timer is set fire at a point lower than the minimum resolution, it will instead fire at the next tick.



What I cannot find is how the minimum timer resolution is determined. What system settings and/or timerfd/EPOLL options control this?










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  • clock_getres()?

    – 炸鱼薯条德里克
    Mar 8 at 14:10

















1















I am using timerfd_create/timerfd_settime/EPOLL to create timers in my application. According to the EPOLL documentation if a timer is set fire at a point lower than the minimum resolution, it will instead fire at the next tick.



What I cannot find is how the minimum timer resolution is determined. What system settings and/or timerfd/EPOLL options control this?










share|improve this question






















  • clock_getres()?

    – 炸鱼薯条德里克
    Mar 8 at 14:10













1












1








1








I am using timerfd_create/timerfd_settime/EPOLL to create timers in my application. According to the EPOLL documentation if a timer is set fire at a point lower than the minimum resolution, it will instead fire at the next tick.



What I cannot find is how the minimum timer resolution is determined. What system settings and/or timerfd/EPOLL options control this?










share|improve this question














I am using timerfd_create/timerfd_settime/EPOLL to create timers in my application. According to the EPOLL documentation if a timer is set fire at a point lower than the minimum resolution, it will instead fire at the next tick.



What I cannot find is how the minimum timer resolution is determined. What system settings and/or timerfd/EPOLL options control this?







system-programming






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asked Mar 8 at 14:00









ChuuChuu

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  • clock_getres()?

    – 炸鱼薯条德里克
    Mar 8 at 14:10

















  • clock_getres()?

    – 炸鱼薯条德里克
    Mar 8 at 14:10
















clock_getres()?

– 炸鱼薯条德里克
Mar 8 at 14:10





clock_getres()?

– 炸鱼薯条德里克
Mar 8 at 14:10










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