wael showair wrote: > Hi All, > i have board that contains MPC8555 processor with linux 2.6.27 ported to it. > i want to use an accurate function to measure the time. i searched the > kernel code & i found several functions but i read that the do_gettimeofday > is the most accurate one since it has a timer resolution of usec.
You might also look at clock_gettime(), which has a theoretical accuracy of nanoseconds. Both this and gettimeofday are NTP-corrected if you are synced to an NTP clock. > my question is how this function give this accuracy while the kernel timer > is 4msec? The accuracy of the timestamp is not related to the tick interval. Chris _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
