isa-l/crc/crc16_t10dif_op_perf.c

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

#define BLKSIZE (512)

//#define CACHED_TEST
#ifdef CACHED_TEST
// Cached test, loop many times over small dataset
# define NBLOCKS      100
# define TEST_TYPE_STR "_warm"
#else
// Uncached test.  Pull from large mem base.
#  define GT_L3_CACHE  32*1024*1024	/* some number > last level cache */
#  define TEST_LEN     (2 * GT_L3_CACHE)
#  define NBLOCKS      (TEST_LEN / BLKSIZE)
#  define TEST_TYPE_STR "_cold"
#endif

#ifndef TEST_SEED
# define TEST_SEED 0x1234
#endif

struct blk {
	uint8_t data[BLKSIZE];
};

struct blk_ext {
	uint8_t data[BLKSIZE];
	uint32_t tag;
	uint16_t meta;
	uint16_t crc;
};

static void crc16_t10dif_copy_perf(struct blk *blks, struct blk *blkp,
				   struct blk_ext *blks_ext, struct blk_ext *blkp_ext,
				   uint16_t * crc)
{
	int i;
	for (i = 0, blkp = blks, blkp_ext = blks_ext; i < NBLOCKS; i++) {
		*crc = crc16_t10dif_copy(TEST_SEED, blkp_ext->data, blkp->data,
					 sizeof(blks->data));
		blkp_ext->crc = *crc;
		blkp++;
		blkp_ext++;
	}
}

int main(int argc, char *argv[])
{
	uint16_t crc;
	struct blk *blks = NULL, *blkp = NULL;
	struct blk_ext *blks_ext = NULL, *blkp_ext = NULL;
	struct perf start;

	printf("crc16_t10dif_streaming_insert_perf:\n");

	if (posix_memalign((void *)&blks, 1024, NBLOCKS * sizeof(*blks))) {
		printf("alloc error: Fail");
		return -1;
	}
	if (posix_memalign((void *)&blks_ext, 1024, NBLOCKS * sizeof(*blks_ext))) {
		printf("alloc error: Fail");
		return -1;
	}

	printf(" size blk: %ld, blk_ext: %ld, blk data: %ld, stream: %ld\n",
	       sizeof(*blks), sizeof(*blks_ext), sizeof(blks->data),
	       NBLOCKS * sizeof(blks->data));
	memset(blks, 0xe5, NBLOCKS * sizeof(*blks));
	memset(blks_ext, 0xe5, NBLOCKS * sizeof(*blks_ext));

	printf("Start timed tests\n");
	fflush(0);

	// Copy and insert test
	BENCHMARK(&start, BENCHMARK_TIME,
		  crc16_t10dif_copy_perf(blks, blkp, blks_ext, blkp_ext, &crc));

	printf("crc16_t10pi_op_copy_insert" TEST_TYPE_STR ": ");
	perf_print(start, (long long)sizeof(blks->data) * NBLOCKS);

	printf("finish 0x%x\n", crc);
	return 0;
}