• State Not Answered
  • Locked Locked
  • Replies 7 replies
  • Subscribers 349 subscribers
  • Views 6065 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Arm11 clock

korner korner
Note: This was originally posted on 13th October 2008 at http://forums.arm.com

Hello,

Does anyone know if there is a timestamp clock in Arm? Something like the RDTSC in intel?
Or some other high frequency clock?
I need a clock to mesure performance of my linux kernel (and I use the RTC for something else).

Thanks everyone!
Parents
  • 0
    Note: This was originally posted on 13th October 2008 at http://forums.arm.com

    I will look more deeply in the CP15 documentation, maybe this will be my answer.
    Thank you.

    About the note: I need to test the linux kernel for a hard real time system. The RTC will cause an interrupt every 1 sec, but I need to see the biggest latecy that occur, and this how I could know how fast an interrupt will handle on the system .
    I need to know exacty how many microseconds it takes.
Reply
  • 0
    Note: This was originally posted on 13th October 2008 at http://forums.arm.com

    I will look more deeply in the CP15 documentation, maybe this will be my answer.
    Thank you.

    About the note: I need to test the linux kernel for a hard real time system. The RTC will cause an interrupt every 1 sec, but I need to see the biggest latecy that occur, and this how I could know how fast an interrupt will handle on the system .
    I need to know exacty how many microseconds it takes.
Children
No data