On Thu, Apr 27, 2006 at 09:49:39PM +0000, Mauricio Lin wrote: > Hi all, > > Since sched_clock() function is implemented differently for each arch, > how can I figure out the maximum value sched_clock can return? > > As sched_clock() has its return value reset to zero when the maximum > value is reached, how can i get the maximum value supported by a > certain arch? > > BR, > > Mauricio Lin. Hi, have a look at the definition of the function. The i386 one can be found here : http://sosdg.org/~coywolf/lxr/source/arch/i386/kernel/timers/timer_tsc.c#L150 The prototype of the function is : unsigned long long sched_clock(void); This means that the maximum number returned by the sched_clock function is 2^64 - 1 -- tyler tyler@xxxxxxxx ___________________________________________________________________________ Faites de Yahoo! votre page d'accueil sur le web pour retrouver directement vos services préférés : vérifiez vos nouveaux mails, lancez vos recherches et suivez l'actualité en temps réel. Rendez-vous sur http://fr.yahoo.com/set -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
