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Old 09-19-2010, 10:20 AM   #1
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How to convert TSC cpu cycles into seconds in C?

unsigned long long tsc_start, tsc_end;
tsc_start = get_tsc();
// execute some code

tsc_end = get_tsc();
printf("Total time for execution %llu cpu cycles", tsc_end - tsc_start);
printf("Total time in seconds "); // How to compute this ?

static unsigned long long get_tsc()
unsigned long long tsc;
asm volatile ("rdtsc" : "=A" (tsc));
return tsc;
Old 09-19-2010, 12:49 PM   #2
Wim Sturkenboom
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Registered: Jan 2005
Location: Roodepoort, South Africa
Distribution: Slackware 10.1/10.2/12, Ubuntu 12.04, Crunchbang Statler
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maybe this is of help :

And please use code tags [code]your code here[/code] when posting code


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