isa-l/raid/xor_gen_perf.c

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#include<stdio.h>
#include<stdint.h>
#include<string.h>
#include<stdlib.h>
#include "raid.h"
#include "test.h"

#ifndef GT_L3_CACHE
# define GT_L3_CACHE  32*1024*1024	/* some number > last level cache */
#endif

#if !defined(COLD_TEST) && !defined(TEST_CUSTOM)
// Cached test, loop many times over small dataset
# define TEST_SOURCES 10
# define TEST_LEN     8*1024
# define TEST_TYPE_STR "_warm"
#elif defined (COLD_TEST)
// Uncached test.  Pull from large mem base.
# define TEST_SOURCES 10
# define TEST_LEN     GT_L3_CACHE / TEST_SOURCES
# define TEST_TYPE_STR "_cold"
#endif

#define TEST_MEM ((TEST_SOURCES + 1)*(TEST_LEN))

int main(int argc, char *argv[])
{
	int i, ret, fail = 0;
	void **buffs;
	void *buff;
	struct perf start;

	printf("Test xor_gen_perf\n");

	ret = posix_memalign((void **)&buff, 8, sizeof(int *) * (TEST_SOURCES + 6));
	if (ret) {
		printf("alloc error: Fail");
		return 1;
	}
	buffs = buff;

	// Allocate the arrays
	for (i = 0; i < TEST_SOURCES + 1; i++) {
		void *buf;
		ret = posix_memalign(&buf, 64, TEST_LEN);
		if (ret) {
			printf("alloc error: Fail");
			return 1;
		}
		buffs[i] = buf;
	}

	// Setup data
	for (i = 0; i < TEST_SOURCES + 1; i++)
		memset(buffs[i], 0, TEST_LEN);

	BENCHMARK(&start, BENCHMARK_TIME, xor_gen(TEST_SOURCES + 1, TEST_LEN, buffs));
	printf("xor_gen" TEST_TYPE_STR ": ");
	perf_print(start, (long long)TEST_MEM);

	return fail;
}