isa-l/igzip/igzip_file_perf.c

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  Copyright(c) 2011-2016 Intel Corporation All rights reserved.

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  modification, are permitted provided that the following conditions
  are met:
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      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
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#define _FILE_OFFSET_BITS 64
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <getopt.h>
#include "igzip_lib.h"
#include "test.h"

#define BUF_SIZE 1024
#define MIN_TEST_LOOPS   10
#ifndef RUN_MEM_SIZE
# define RUN_MEM_SIZE 500000000
#endif

struct isal_zstream stream;

int usage(void)
{
	fprintf(stderr,
		"Usage: igzip_file_perf [options] <infile>\n"
		"  -h        help\n"
		"  -X        use compression level X with 0 <= X <= 1\n"
		"  -b <size> input buffer size, 0 buffers all the input\n"
		"  -i <iter> number of iterations (at least 1)\n"
		"  -o <file> output file for compresed data\n"
		"  -d <file> dictionary file used by compression\n");

	exit(0);
}

int main(int argc, char *argv[])
{
	FILE *in = NULL, *out = NULL, *dict = NULL;
	unsigned char *inbuf, *outbuf, *level_buf = NULL, *dictbuf = NULL;
	int i, c, iterations = 0, inbuf_size = 0;
	uint64_t infile_size, outbuf_size, dictfile_size;
	struct isal_huff_histogram histogram;
	struct isal_hufftables hufftables_custom;
	int level = 0, level_size = 0, avail_in;
	char *in_file_name = NULL, *out_file_name = NULL, *dict_file_name = NULL;

	while ((c = getopt(argc, argv, "h01i:b:o:d:")) != -1) {
		switch (c) {
		case 'o':
			out_file_name = optarg;
			break;
		case 'd':
			dict_file_name = optarg;
			break;
		case 'i':
			iterations = atoi(optarg);
			if (iterations < 1)
				usage();
			break;
		case 'b':
			inbuf_size = atoi(optarg);
			break;
		case '1':
			level = 1;
			level_size = ISAL_DEF_LVL1_LARGE;
			break;
		case '0':
			break;
		case 'h':
		default:
			usage();
			break;
		}
	}

	if (optind < argc) {
		in_file_name = argv[optind];
		in = fopen(in_file_name, "rb");
	} else
		usage();

	if (!in) {
		fprintf(stderr, "Can't open %s for reading\n", in_file_name);
		exit(0);
	}
	if (out_file_name != NULL) {
		out = fopen(out_file_name, "wb");
		if (!out) {
			fprintf(stderr, "Can't open %s for writing\n", out_file_name);
			exit(0);
		}
		printf("outfile=%s\n", out_file_name);
	}

	if (dict_file_name != NULL) {
		dict = fopen(dict_file_name, "rb");
		if (!dict) {
			fprintf(stderr, "Can't open %s for reading\n", dict_file_name);
			exit(0);
		}
		printf("outfile=%s\n", dict_file_name);
	}

	printf("Window Size: %d K\n", IGZIP_HIST_SIZE / 1024);
	printf("igzip_file_perf: \n");
	fflush(0);

	/* Allocate space for entire input file and output
	 * (assuming some possible expansion on output size)
	 */
	infile_size = get_filesize(in);

	outbuf_size = 2 * infile_size + BUF_SIZE;

	dictfile_size = (dict_file_name != NULL) ? get_filesize(dict) : 0;

	if (iterations == 0) {
		iterations = infile_size ? RUN_MEM_SIZE / infile_size : MIN_TEST_LOOPS;
		if (iterations < MIN_TEST_LOOPS)
			iterations = MIN_TEST_LOOPS;
	}

	inbuf = malloc(infile_size);
	if (inbuf == NULL) {
		fprintf(stderr, "Can't allocate input buffer memory\n");
		exit(0);
	}
	outbuf = malloc(outbuf_size);
	if (outbuf == NULL) {
		fprintf(stderr, "Can't allocate output buffer memory\n");
		exit(0);
	}

	if (dictfile_size != 0) {
		dictbuf = malloc(dictfile_size);
		if (dictbuf == NULL) {
			fprintf(stderr, "Can't allocate dictionary buffer memory\n");
			exit(0);
		}
	}

	if (level_size != 0) {
		level_buf = malloc(level_size);
		if (level_buf == NULL) {
			fprintf(stderr, "Can't allocate level buffer memory\n");
			exit(0);
		}
	}

	inbuf_size = inbuf_size ? inbuf_size : infile_size;

	printf("igzip_file_perf: %s %d iterations\n", in_file_name, iterations);

	/* Read complete input file into buffer */
	stream.avail_in = (uint32_t) fread(inbuf, 1, infile_size, in);
	if (stream.avail_in != infile_size) {
		fprintf(stderr, "Couldn't fit all of input file into buffer\n");
		exit(0);
	}

	/* Read complete dictionary into buffer */
	if ((dictfile_size != 0) && (dictfile_size != fread(dictbuf, 1, dictfile_size, dict))) {
		fprintf(stderr, "Couldn't fit all of dictionary file into buffer\n");
		exit(0);
	}

	struct perf start, stop;
	perf_start(&start);

	for (i = 0; i < iterations; i++) {
		isal_deflate_init(&stream);
		if (dict_file_name != NULL)
			isal_deflate_set_dict(&stream, dictbuf, dictfile_size);
		stream.end_of_stream = 0;
		stream.flush = NO_FLUSH;
		stream.level = level;
		stream.level_buf = level_buf;
		stream.level_buf_size = level_size;
		stream.next_out = outbuf;
		stream.avail_out = outbuf_size;
		stream.next_in = inbuf;
		avail_in = infile_size;

		while (avail_in > 0) {
			stream.avail_in = avail_in >= inbuf_size ? inbuf_size : avail_in;
			avail_in -= inbuf_size;

			if (avail_in <= 0)
				stream.end_of_stream = 1;

			isal_deflate(&stream);

			if (stream.avail_in != 0)
				break;
		}
	}

	perf_stop(&stop);

	if (stream.avail_in != 0) {
		fprintf(stderr, "Could not compress all of inbuf\n");
		exit(0);
	}

	printf("  file %s - in_size=%lu out_size=%d iter=%d ratio=%3.1f%%",
	       in_file_name, infile_size, stream.total_out, i,
	       100.0 * stream.total_out / infile_size);

	if (level == 0) {
		memset(&histogram, 0, sizeof(histogram));

		isal_update_histogram(inbuf, infile_size, &histogram);
		isal_create_hufftables(&hufftables_custom, &histogram);

		isal_deflate_init(&stream);
		stream.end_of_stream = 0;
		stream.flush = NO_FLUSH;
		stream.level = level;
		stream.level_buf = level_buf;
		stream.level_buf_size = level_size;
		stream.next_out = outbuf;
		stream.avail_out = outbuf_size;
		stream.next_in = inbuf;
		stream.hufftables = &hufftables_custom;
		avail_in = infile_size;

		while (avail_in > 0) {
			stream.avail_in = avail_in >= inbuf_size ? inbuf_size : avail_in;
			avail_in -= inbuf_size;

			if (avail_in <= 0)
				stream.end_of_stream = 1;

			isal_deflate(&stream);

			if (stream.avail_in != 0)
				break;
		}

		printf(" ratio_custom=%3.1f%%", 100.0 * stream.total_out / infile_size);
	}
	printf("\n");

	if (stream.avail_in != 0) {
		fprintf(stderr, "Could not compress all of inbuf\n");
		exit(0);
	}

	printf("igzip_file: ");
	perf_print(stop, start, (long long)infile_size * i);

	if (argc > 2 && out) {
		printf("writing %s\n", out_file_name);
		fwrite(outbuf, 1, stream.total_out, out);
		fclose(out);
	}

	fclose(in);
	printf("End of igzip_file_perf\n\n");
	fflush(0);
	return 0;
}