14 lines
415 B
C
14 lines
415 B
C
#include "perf.h"
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int main() {
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for(int i=0; i<100; ++i) {
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uint64_t cycles = rdcycle();
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uint64_t instret = rdinstret();
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printf("i=%d cycles=%d instret=%d\n", i, (int)cycles, (int)instret);
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}
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uint64_t instret = rdinstret();
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uint64_t cycles = rdcycle();
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printf("cycles=%d instret=%d 100CPI=%d\n", (int)cycles, (int)instret, (int)(100*cycles/instret));
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}
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