diff options
Diffstat (limited to '')
| -rw-r--r-- | src/isa-l/erasure_code/gf_vect_dot_prod_perf.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/src/isa-l/erasure_code/gf_vect_dot_prod_perf.c b/src/isa-l/erasure_code/gf_vect_dot_prod_perf.c new file mode 100644 index 000000000..bd2b555b0 --- /dev/null +++ b/src/isa-l/erasure_code/gf_vect_dot_prod_perf.c @@ -0,0 +1,174 @@ +/********************************************************************** + Copyright(c) 2011-2015 Intel Corporation All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + * Neither the name of Intel Corporation nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +**********************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> // for memset, memcmp +#include "erasure_code.h" +#include "test.h" + +#ifndef FUNCTION_UNDER_TEST +# define FUNCTION_UNDER_TEST gf_vect_dot_prod +#endif + +#define str(s) #s +#define xstr(s) str(s) + +//#define CACHED_TEST +#ifdef CACHED_TEST +// Cached test, loop many times over small dataset +# define TEST_SOURCES 10 +# define TEST_LEN 8*1024 +# define TEST_TYPE_STR "_warm" +#else +# ifndef TEST_CUSTOM +// Uncached test. Pull from large mem base. +# define TEST_SOURCES 10 +# define GT_L3_CACHE 32*1024*1024 /* some number > last level cache */ +# define TEST_LEN ((GT_L3_CACHE / TEST_SOURCES) & ~(64-1)) +# define TEST_TYPE_STR "_cold" +# else +# define TEST_TYPE_STR "_cus" +# endif +#endif + +typedef unsigned char u8; + +void dump(unsigned char *buf, int len) +{ + int i; + for (i = 0; i < len;) { + printf(" %2x", 0xff & buf[i++]); + if (i % 32 == 0) + printf("\n"); + } + printf("\n"); +} + +void dump_matrix(unsigned char **s, int k, int m) +{ + int i, j; + for (i = 0; i < k; i++) { + for (j = 0; j < m; j++) { + printf(" %2x", s[i][j]); + } + printf("\n"); + } + printf("\n"); +} + +void vect_dot_prod_perf(void (*fun_ptr) + (int, int, unsigned char *, unsigned char **, unsigned char *), + u8 * g, u8 * g_tbls, u8 ** buffs, u8 * dest_ref) +{ + int j; + for (j = 0; j < TEST_SOURCES; j++) + gf_vect_mul_init(g[j], &g_tbls[j * 32]); + + (*fun_ptr) (TEST_LEN, TEST_SOURCES, &g_tbls[0], buffs, dest_ref); +} + +int main(int argc, char *argv[]) +{ + int i, j; + void *buf; + u8 g[TEST_SOURCES], g_tbls[TEST_SOURCES * 32], *dest, *dest_ref; + u8 *temp_buff, *buffs[TEST_SOURCES]; + struct perf start; + + printf(xstr(FUNCTION_UNDER_TEST) ": %dx%d\n", TEST_SOURCES, TEST_LEN); + + // Allocate the arrays + for (i = 0; i < TEST_SOURCES; i++) { + if (posix_memalign(&buf, 64, TEST_LEN)) { + printf("alloc error: Fail"); + return -1; + } + buffs[i] = buf; + } + + if (posix_memalign(&buf, 64, TEST_LEN)) { + printf("alloc error: Fail"); + return -1; + } + dest = buf; + + if (posix_memalign(&buf, 64, TEST_LEN)) { + printf("alloc error: Fail"); + return -1; + } + dest_ref = buf; + + if (posix_memalign(&buf, 64, TEST_LEN)) { + printf("alloc error: Fail"); + return -1; + } + temp_buff = buf; + + // Performance test + for (i = 0; i < TEST_SOURCES; i++) + for (j = 0; j < TEST_LEN; j++) + buffs[i][j] = rand(); + + memset(dest, 0, TEST_LEN); + memset(temp_buff, 0, TEST_LEN); + memset(dest_ref, 0, TEST_LEN); + memset(g, 0, TEST_SOURCES); + + for (i = 0; i < TEST_SOURCES; i++) + g[i] = rand(); + +#ifdef DO_REF_PERF + BENCHMARK(&start, BENCHMARK_TIME, + vect_dot_prod_perf(&gf_vect_dot_prod_base, g, g_tbls, buffs, dest_ref) + ); + printf("gf_vect_dot_prod_base" TEST_TYPE_STR ": "); + perf_print(start, (long long)TEST_LEN * (TEST_SOURCES + 1)); +#else + vect_dot_prod_perf(&gf_vect_dot_prod_base, g, g_tbls, buffs, dest_ref); +#endif + + BENCHMARK(&start, BENCHMARK_TIME, + vect_dot_prod_perf(&FUNCTION_UNDER_TEST, g, g_tbls, buffs, dest)); + printf(xstr(FUNCTION_UNDER_TEST) TEST_TYPE_STR ": "); + perf_print(start, (long long)TEST_LEN * (TEST_SOURCES + 1)); + + if (0 != memcmp(dest_ref, dest, TEST_LEN)) { + printf("Fail zero " xstr(FUNCTION_UNDER_TEST) " test\n"); + dump_matrix(buffs, 5, TEST_SOURCES); + printf("dprod_base:"); + dump(dest_ref, 25); + printf("dprod:"); + dump(dest, 25); + return -1; + } + + printf("pass perf check\n"); + return 0; +} |