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time i nmicrosecond in itanium

karimfath
Beginner
111 Views

hello

i want mesure the time elapsed in segment of code but in itanium rdstc is not supported then the question .how can i evaluate time of execution of segment of code in itanium processor

thanks for help

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TimP
Black Belt
111 Views
Quoting - karimfath

i want mesure the time elapsed in segment of code but in itanium rdstc is not supported then the question .how can i evaluate time of execution of segment of code in itanium processor

unsigned long result;
/* gcc-IA64 version */
__asm__ __volatile__("mov %0=ar.itc" : "=r"(result) :: "memory");
while (__builtin_expect ((int) result == -1, 0))
__asm__ __volatile__("mov %0=ar.itc" : "=r"(result) :: "memory");

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