hi ... On Mon, Sep 27, 2010 at 12:28, MK <[email protected]> wrote: > Hi list, > > I am getting tsc timestamps from some 3rd party code. I need to > convert it into elapsed time. So if get two timestamps, I want to know > how much time in seconds has elapsed between the two. So I need to > first compute the frequency at which the tsc gets incremented.
Intel documents should be able to tell you about that. However, (and I think you should already know), TSC, as the processor frequency itself is now adjustable. Since the day of Intel Speed Step, it's not fixed anymore. So, I am afraid, unless you apply the calculation to pre Pentium M processor or lock the frequency on certain number using certain governor setting, you will hardly derive a correct time interval. -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [email protected] Please read the FAQ at http://kernelnewbies.org/FAQ
