cosmopolitan/libc/testlib/ezbench.h
Justine Tunney 7b26b42769 Pay off more technical debt
This makes breaking changes to add underscores to many non-standard
function names provided by the c library. MODE=tiny is now tinier and
we now use smaller locks that are better for tiny apps in this mode.
Some headers have been renamed to be in the same folder as the build
package, so it'll be easier to know which build dependency is needed.
Certain old misguided interfaces have been removed. Intel intrinsics
headers are now listed in libc/isystem (but not in the amalgamation)
to help further improve open source compatibility. Header complexity
has also been reduced. Lastly, more shell scripts are now available.

Compared to 6f7d0cb1c3, some tiny corrections were made in libc/intrin/g_fds.c and libc/zipos/open.c including double semi colons and incorrect indentation for existing vista changes that were manually pulled from this commit previously.
2023-03-20 21:07:01 -04:00

205 lines
13 KiB
C

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