mirror of
https://github.com/jart/cosmopolitan.git
synced 2024-05-18 03:22:40 +00:00
fa20edc44d
- Remove most __ASSEMBLER__ __LINKER__ ifdefs - Rename libc/intrin/bits.h to libc/serialize.h - Block pthread cancelation in fchmodat() polyfill - Remove `clang-format off` statements in third_party
48 lines
2 KiB
C
48 lines
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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COSMOPOLITAN_C_START_
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/**
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* @fileoverview Microbenchmarking Toolz.
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*/
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#define BENCHLOOPER(START, STOP, N, EXPR) \
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({ \
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long Iter = 1; \
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long Toto = (N); \
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uint64_t Time1 = START(); \
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asm volatile("" ::: "memory"); \
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for (; Iter < Toto; ++Iter) { \
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asm volatile("" ::: "memory"); \
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EXPR; \
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asm volatile("" ::: "memory"); \
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} \
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asm volatile("" ::: "memory"); \
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uint64_t Time2 = STOP(); \
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(double)(long)(Time2 - Time1) / Iter; \
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})
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#ifndef BENCHLOOP
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/* TODO(jart): DELETE */
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#define BENCHLOOP(START, STOP, N, INIT, EXPR) \
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({ \
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double Average; \
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uint64_t Time1, Time2; \
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unsigned long Iter, Count; \
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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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asm volatile("" ::: "memory"); \
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EXPR; \
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asm volatile("" ::: "memory"); \
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Time2 = STOP(); \
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Average += 1. / Iter * ((int)(Time2 - Time1) - Average); \
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} \
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Average; \
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})
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#endif /* BENCHLOOP */
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COSMOPOLITAN_C_END_
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#endif /* COSMOPOLITAN_LIBC_BENCH_H_ */
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