diff options
Diffstat (limited to 'string/bench/memset.c')
| -rw-r--r-- | string/bench/memset.c | 141 |
1 files changed, 44 insertions, 97 deletions
diff --git a/string/bench/memset.c b/string/bench/memset.c index 990e23ba9a36..07474e469146 100644 --- a/string/bench/memset.c +++ b/string/bench/memset.c @@ -20,25 +20,16 @@ #define MIN_SIZE 32768 #define MAX_SIZE (1024 * 1024) -static uint8_t a[MAX_SIZE + 4096] __attribute__((__aligned__(64))); +static uint8_t a[MAX_SIZE + 4096] __attribute__((__aligned__(4096))); -#define F(x) {#x, x}, - -static const struct fun -{ - const char *name; - void *(*fun)(void *, int, size_t); -} funtab[] = -{ -#if __aarch64__ - F(__memset_aarch64) -#elif __arm__ - F(__memset_arm) -#endif - F(memset) -#undef F - {0, 0} -}; +#define DOTEST(STR,TESTFN) \ + printf (STR); \ + RUN (TESTFN, memset); \ + RUNA64 (TESTFN, __memset_aarch64); \ + RUNSVE (TESTFN, __memset_aarch64_sve); \ + RUNMOPS (TESTFN, __memset_mops); \ + RUNA32 (TESTFN, __memset_arm); \ + printf ("\n"); typedef struct { uint32_t offset : 20, len : 12; } memset_test_t; static memset_test_t test_arr[NUM_TESTS]; @@ -127,117 +118,73 @@ init_memset (size_t max_size) return total; } - -int main (void) +static void inline __attribute ((always_inline)) +memset_random (const char *name, void *(*set)(void *, int, size_t)) { - init_memset_distribution (); - - memset (a, 1, sizeof (a)); - - printf("Random memset (bytes/ns):\n"); - for (int f = 0; funtab[f].name != 0; f++) - { - size_t total_size = 0; - uint64_t tsum = 0; - printf ("%22s ", funtab[f].name); - rand32 (0x12345678); - - for (int size = MIN_SIZE; size <= MAX_SIZE; size *= 2) - { - size_t memset_size = init_memset (size) * ITERS; - - for (int c = 0; c < NUM_TESTS; c++) - funtab[f].fun (a + test_arr[c].offset, 0, test_arr[c].len); - - uint64_t t = clock_get_ns (); - for (int i = 0; i < ITERS; i++) - for (int c = 0; c < NUM_TESTS; c++) - funtab[f].fun (a + test_arr[c].offset, 0, test_arr[c].len); - t = clock_get_ns () - t; - total_size += memset_size; - tsum += t; - printf ("%dK: %.2f ", size / 1024, (double)memset_size / t); - } - printf( "avg %.2f\n", (double)total_size / tsum); - } - - size_t total_size = 0; + uint64_t total_size = 0; uint64_t tsum = 0; - printf ("%22s ", "memset_call"); + printf ("%22s ", name); rand32 (0x12345678); for (int size = MIN_SIZE; size <= MAX_SIZE; size *= 2) { - size_t memset_size = init_memset (size) * ITERS; + uint64_t memset_size = init_memset (size) * ITERS; for (int c = 0; c < NUM_TESTS; c++) - memset (a + test_arr[c].offset, 0, test_arr[c].len); + set (a + test_arr[c].offset, 0, test_arr[c].len); uint64_t t = clock_get_ns (); for (int i = 0; i < ITERS; i++) for (int c = 0; c < NUM_TESTS; c++) - memset (a + test_arr[c].offset, 0, test_arr[c].len); + set (a + test_arr[c].offset, 0, test_arr[c].len); t = clock_get_ns () - t; total_size += memset_size; tsum += t; - printf ("%dK: %.2f ", size / 1024, (double)memset_size / t); + printf ("%dK: %5.2f ", size / 1024, (double)memset_size / t); } - printf( "avg %.2f\n", (double)total_size / tsum); - + printf( "avg %5.2f\n", (double)total_size / tsum); +} - printf ("\nMedium memset (bytes/ns):\n"); - for (int f = 0; funtab[f].name != 0; f++) - { - printf ("%22s ", funtab[f].name); - - for (int size = 8; size <= 512; size *= 2) - { - uint64_t t = clock_get_ns (); - for (int i = 0; i < ITERS2; i++) - funtab[f].fun (a, 0, size); - t = clock_get_ns () - t; - printf ("%dB: %.2f ", size, (double)size * ITERS2 / t); - } - printf ("\n"); - } +static void inline __attribute ((always_inline)) +memset_medium (const char *name, void *(*set)(void *, int, size_t)) +{ + printf ("%22s ", name); - printf ("%22s ", "memset_call"); for (int size = 8; size <= 512; size *= 2) { uint64_t t = clock_get_ns (); for (int i = 0; i < ITERS2; i++) - memset (a, 0, size); + set (a, 0, size); t = clock_get_ns () - t; - printf ("%dB: %.2f ", size, (double)size * ITERS2 / t); + printf ("%dB: %5.2f ", size, (double)size * ITERS2 / t); } + printf ("\n"); +} +static void inline __attribute ((always_inline)) +memset_large (const char *name, void *(*set)(void *, int, size_t)) +{ + printf ("%22s ", name); - printf ("\nLarge memset (bytes/ns):\n"); - for (int f = 0; funtab[f].name != 0; f++) - { - printf ("%22s ", funtab[f].name); - - for (int size = 1024; size <= 65536; size *= 2) - { - uint64_t t = clock_get_ns (); - for (int i = 0; i < ITERS3; i++) - funtab[f].fun (a, 0, size); - t = clock_get_ns () - t; - printf ("%dK: %.2f ", size / 1024, (double)size * ITERS3 / t); - } - printf ("\n"); - } - - printf ("%22s ", "memset_call"); for (int size = 1024; size <= 65536; size *= 2) { uint64_t t = clock_get_ns (); for (int i = 0; i < ITERS3; i++) - memset (a, 0, size); + set (a, 0, size); t = clock_get_ns () - t; - printf ("%dK: %.2f ", size / 1024, (double)size * ITERS3 / t); + printf ("%dKB: %6.2f ", size / 1024, (double)size * ITERS3 / t); } - printf ("\n\n"); + printf ("\n"); +} + +int main (void) +{ + init_memset_distribution (); + + memset (a, 1, sizeof (a)); + DOTEST ("Random memset (bytes/ns):\n", memset_random); + DOTEST ("Medium memset (bytes/ns):\n", memset_medium); + DOTEST ("Large memset (bytes/ns):\n", memset_large); return 0; } |