On 15/07/10 18:42, Radhesh Kamath wrote: > I have a kernel module that sends me an RDTSC value to userspace, and > I need to get a UTC timestamp based on this. > As far as I understand, RDTSC gives me the clock ticks that have > elapsed since the processor was switched on (this is a 64-bit machine, > so my guess is that wraparound is not an issue). > > How can I use this info to obtain a UTC timestamp? Radhesh, I suggest that you look into the NTP daemon (ntpd, http://www.ntp.org/). This daemon already does its best to obtain timing information from as many sources as you configure, in order to discipline the local clock to observe UTC as closely as possible. Jan -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
