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How does system clock increase its tick counter


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From what I currently understand, that system clock increase its tick counter separately from RTC (hardware clock) when linux is up. I think it is maintained internally by kernel by reading timer interrupt.



So how exactly the mechanism works? Does it require hardware such as timer chip as well?










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    From what I currently understand, that system clock increase its tick counter separately from RTC (hardware clock) when linux is up. I think it is maintained internally by kernel by reading timer interrupt.



    So how exactly the mechanism works? Does it require hardware such as timer chip as well?










    share|improve this question







    New contributor



    Andri J is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      0












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      0








      From what I currently understand, that system clock increase its tick counter separately from RTC (hardware clock) when linux is up. I think it is maintained internally by kernel by reading timer interrupt.



      So how exactly the mechanism works? Does it require hardware such as timer chip as well?










      share|improve this question







      New contributor



      Andri J is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      From what I currently understand, that system clock increase its tick counter separately from RTC (hardware clock) when linux is up. I think it is maintained internally by kernel by reading timer interrupt.



      So how exactly the mechanism works? Does it require hardware such as timer chip as well?







      linux-kernel






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      Andri J is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      asked 19 mins ago









      Andri JAndri J

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