Dear friends,
i am using the following function to obtain the CPU timestamp:
typedef unsigned long long xadk64_t;
void
apx_rdtsc(xadk64_t * const t)
{
__asm__ __volatile__ (".byte 0xf;.byte 0x31": "=A"(*t));
}
I am using a single processor system. My i was thinking on using
OpenBSD on a dual processor and notebook.
I wonder if my previous approach could fail on a SMP system? More
over, in a notebook whose CPU performance varies, should be afraid of
using that function?
If yes for any of those questions, which approach should i take in
order to obtain the same results?
Thanks in advance.
Best regards.
