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208 lines
13 KiB
C
208 lines
13 KiB
C
#ifndef COSMOPOLITAN_LIBC_TESTLIB_EZBENCH_H_
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#define COSMOPOLITAN_LIBC_TESTLIB_EZBENCH_H_
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#include "libc/nexgen32e/bench.h"
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#include "libc/nexgen32e/x86feature.h"
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#include "libc/testlib/bench.h"
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#include "libc/testlib/testlib.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#ifndef EZBENCH_COUNT
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#define EZBENCH_COUNT 128
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#endif
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#define EZBENCH_TRIES 10
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#define EZBENCH(INIT, EXPR) EZBENCH2(#EXPR, INIT, EXPR)
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#define EZBENCH2(NAME, INIT, EXPR) \
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do { \
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int Core, Tries, Interrupts; \
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int64_t Speculative, MemoryStrict; \
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Tries = 0; \
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do { \
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__testlib_yield(); \
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Core = __testlib_getcore(); \
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Interrupts = __testlib_getinterrupts(); \
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INIT; \
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EXPR; \
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Speculative = BENCHLOOP(__startbench, __endbench, EZBENCH_COUNT, ({ \
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INIT; \
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__polluteregisters(); \
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}), \
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(EXPR)); \
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} while (++Tries < EZBENCH_TRIES && \
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(__testlib_getcore() != Core && \
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__testlib_getinterrupts() > Interrupts)); \
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if (Tries == EZBENCH_TRIES) __testlib_ezbenchwarn(" speculative"); \
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Tries = 0; \
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do { \
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__testlib_yield(); \
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Core = __testlib_getcore(); \
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Interrupts = __testlib_getinterrupts(); \
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INIT; \
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EXPR; \
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MemoryStrict = BENCHLOOP(__startbench_m, __endbench_m, 32, ({ \
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INIT; \
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thrashcodecache(); \
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__polluteregisters(); \
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}), \
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(EXPR)); \
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} while (++Tries < EZBENCH_TRIES && \
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(__testlib_getcore() != Core && \
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__testlib_getinterrupts() > Interrupts)); \
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if (Tries == EZBENCH_TRIES) __testlib_ezbenchwarn(" memory strict"); \
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__testlib_ezbenchreport( \
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NAME, MAX(0, Speculative - __testlib_ezbenchcontrol()), \
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MAX(0, MemoryStrict - __testlib_ezbenchcontrol())); \
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} while (0)
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#define EZBENCH3(NAME, NUM, INIT, EXPR) \
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do { \
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int Core, Tries, Interrupts; \
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int64_t Speculative, MemoryStrict; \
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Tries = 0; \
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do { \
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__testlib_yield(); \
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Core = __testlib_getcore(); \
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Interrupts = __testlib_getinterrupts(); \
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INIT; \
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EXPR; \
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Speculative = BENCHLOOP(__startbench, __endbench, NUM, ({ \
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INIT; \
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__polluteregisters(); \
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}), \
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(EXPR)); \
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} while (++Tries < EZBENCH_TRIES && \
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(__testlib_getcore() != Core && \
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__testlib_getinterrupts() > Interrupts)); \
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if (Tries == EZBENCH_TRIES) __testlib_ezbenchwarn(" speculative"); \
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Tries = 0; \
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do { \
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__testlib_yield(); \
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Core = __testlib_getcore(); \
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Interrupts = __testlib_getinterrupts(); \
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INIT; \
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EXPR; \
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MemoryStrict = BENCHLOOP(__startbench_m, __endbench_m, NUM, ({ \
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INIT; \
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thrashcodecache(); \
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__polluteregisters(); \
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}), \
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(EXPR)); \
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} while (++Tries < EZBENCH_TRIES && \
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(__testlib_getcore() != Core && \
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__testlib_getinterrupts() > Interrupts)); \
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if (Tries == EZBENCH_TRIES) __testlib_ezbenchwarn(" memory strict"); \
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__testlib_ezbenchreport( \
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NAME, MAX(0, Speculative - __testlib_ezbenchcontrol()), \
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MAX(0, MemoryStrict - __testlib_ezbenchcontrol())); \
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} while (0)
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#define EZBENCH_C(NAME, CONTROL, EXPR) \
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do { \
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int Core, Tries, Interrupts; \
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int64_t Control, Speculative, MemoryStrict; \
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Tries = 0; \
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do { \
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__testlib_yield(); \
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Core = __testlib_getcore(); \
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Interrupts = __testlib_getinterrupts(); \
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Control = BENCHLOOP(__startbench_m, __endbench_m, EZBENCH_COUNT, ({ \
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thrashcodecache(); \
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__polluteregisters(); \
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}), \
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(CONTROL)); \
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} while (++Tries < EZBENCH_TRIES && \
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(__testlib_getcore() != Core && \
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__testlib_getinterrupts() > Interrupts)); \
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if (Tries == EZBENCH_TRIES) __testlib_ezbenchwarn(" control"); \
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Tries = 0; \
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do { \
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__testlib_yield(); \
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Core = __testlib_getcore(); \
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Interrupts = __testlib_getinterrupts(); \
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EXPR; \
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Speculative = BENCHLOOP(__startbench, __endbench, EZBENCH_COUNT, \
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__polluteregisters(), (EXPR)); \
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} while (++Tries < EZBENCH_TRIES && \
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(__testlib_getcore() != Core && \
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__testlib_getinterrupts() > Interrupts)); \
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if (Tries == EZBENCH_TRIES) __testlib_ezbenchwarn(" speculative"); \
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Tries = 0; \
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do { \
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__testlib_yield(); \
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Core = __testlib_getcore(); \
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Interrupts = __testlib_getinterrupts(); \
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EXPR; \
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MemoryStrict = BENCHLOOP(__startbench_m, __endbench_m, 8, ({ \
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thrashcodecache(); \
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__polluteregisters(); \
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}), \
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(EXPR)); \
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} while (++Tries < EZBENCH_TRIES && \
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(__testlib_getcore() != Core && \
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__testlib_getinterrupts() > Interrupts)); \
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if (Tries == EZBENCH_TRIES) __testlib_ezbenchwarn(" memory strict"); \
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__testlib_ezbenchreport(NAME, MAX(0, Speculative - Control), \
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MAX(0, MemoryStrict - Control)); \
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} while (0)
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#define EZBENCH_N(NAME, N, EXPR) \
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do { \
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int64_t Speculative, Toto; \
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int Core, Tries, Interrupts; \
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Tries = 0; \
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do { \
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__testlib_yield(); \
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Core = __testlib_getcore(); \
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Interrupts = __testlib_getinterrupts(); \
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EXPR; \
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Speculative = BENCHLOOP(__startbench, __endbench, 32, \
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__polluteregisters(), (EXPR)); \
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} while (++Tries < EZBENCH_TRIES && \
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(__testlib_getcore() != Core && \
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__testlib_getinterrupts() > Interrupts)); \
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if (Tries == EZBENCH_TRIES) __testlib_ezbenchwarn(""); \
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__testlib_ezbenchreport_n( \
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NAME, 'n', N, MAX(0, Speculative - __testlib_ezbenchcontrol())); \
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} while (0)
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#define EZBENCH_K(NAME, K, EXPR) \
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do { \
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int Core; \
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int64_t Speculative; \
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do { \
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__testlib_yield(); \
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Core = __testlib_getcore(); \
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EXPR; \
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Speculative = BENCHLOOP(__startbench, __endbench, EZBENCH_COUNT, \
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donothing, (EXPR)); \
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} while (Core != __testlib_getcore()); \
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__testlib_ezbenchreport_n( \
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NAME, 'k', K, MAX(0, Speculative - __testlib_ezbenchcontrol())); \
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} while (0)
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void __polluteregisters(void);
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void __testlib_yield(void);
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int __testlib_getcore(void);
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int64_t __testlib_getinterrupts(void);
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int64_t __testlib_ezbenchcontrol(void);
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void __testlib_ezbenchwarn(const char *);
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void __testlib_ezbenchreport(const char *, uint64_t, uint64_t);
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void __testlib_ezbenchreport_n(const char *, char, size_t, uint64_t);
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#ifdef __STRICT_ANSI__
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#undef EZBENCH2
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#undef EZBENCH3
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#undef EZBENCH_N
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#undef EZBENCH_K
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#define EZBENCH2(NAME, INIT, EXPR) (void)0
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#define EZBENCH3(NAME, NUM, INIT, EXPR) (void)0
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#define EZBENCH_N(NAME, N, EXPR) (void)0
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#define EZBENCH_K(NAME, K, EXPR) (void)0
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#endif
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_TESTLIB_EZBENCH_H_ */
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