rdtsc() will give you cycle counts since system boot. It reads a Pentium internal register which is incremented at every CPU internal clock cycle.
Deepankar Andrei Cojocaru wrote: > I was asking around in #freebsdhelp on EFNet what the equivalent of > GetTickCount() in the Win32 API is in FreeBSD. > > I need a way to properly determine passage of time that is not affected if I > change the system clock for example. The only way I'm aware that you can do > that is by counting the number of clock cycles since system startup. What > function does that in FreeBSD? I'd also like a Linux way if possible. (that > is a way that will work across all UNIX clones). Thanks and please include > my email in the reply directly since I'm not signed up to this mailing list. > Thanks once again. > ---- > Andrei Cojocaru > [EMAIL PROTECTED] > > > To Unsubscribe: send mail to [EMAIL PROTECTED] > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
