29 lines
1.2 KiB
C
29 lines
1.2 KiB
C
#ifndef COSMOPOLITAN_LIBC_BENCH_H_
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#define COSMOPOLITAN_LIBC_BENCH_H_
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#include "libc/nexgen32e/bench.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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/**
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* @fileoverview Microbenchmarking tools.
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*/
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#define BENCHLOOP(START, STOP, N, INIT, EXPR) \
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({ \
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unsigned long Iter, Count; \
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double Average, Sample, Time1, Time2; \
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for (Average = 1, Iter = 1, Count = (N); Iter < Count; ++Iter) { \
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INIT; \
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Time1 = START(); \
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EXPR; \
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Time2 = STOP(); \
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Sample = Time2 - Time1; \
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Average += 1. / Iter * (Sample - Average); \
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} \
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Average; \
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})
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_BENCH_H_ */
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