isa-l/igzip/igzip_semi_dyn_file_perf.c

/**********************************************************************
  Copyright(c) 2011-2016 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.
**********************************************************************/

#define _FILE_OFFSET_BITS 64
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include "igzip_lib.h"
#include "test.h"

#define MIN_BUF_SIZE    (4 * 1024)
#define MIN_TEST_LOOPS   10
#ifndef RUN_MEM_SIZE
# define RUN_MEM_SIZE 500000000
#endif

#define DEFAULT_SEG_SIZE    (512 * 1024)
#define DEFAULT_SAMPLE_SIZE (32 * 1024)

int usage(void)
{
	fprintf(stderr,
		"Usage: igzip_semi_dynamic [options] <infile>\n"
		"  -h        help\n"
		"  -v        (don't) validate output by inflate and compare\n"
		"  -i <iter> iterations\n"
		"  -t <type> 1:stateless 0:(default)stateful\n"
		"  -c <size> chunk size default=%d\n"
		"  -s <size> sample size default=%d\n"
		"  -o <file> output file\n", DEFAULT_SEG_SIZE, DEFAULT_SAMPLE_SIZE);
	exit(0);
}

int str_to_i(char *s)
{
#define ARG_MAX 32

	int i = atoi(s);
	int len = strnlen(s, ARG_MAX);
	if (len < 2 || len == ARG_MAX)
		return i;

	switch (s[len - 1]) {
	case 'k':
		i *= 1024;
		break;
	case 'K':
		i *= 1000;
		break;
	case 'm':
		i *= (1024 * 1024);
		break;
	case 'M':
		i *= (1000 * 1000);
		break;
	case 'g':
		i *= (1024 * 1024 * 1024);
		break;
	case 'G':
		i *= (1000 * 1000 * 1000);
		break;
	}
	return i;
}

int main(int argc, char *argv[])
{
	FILE *in = stdin, *out = NULL;
	unsigned char *inbuf, *outbuf;
	int i = 0, c;
	uint64_t infile_size, outbuf_size;
	int segment_size = DEFAULT_SEG_SIZE;
	int sample_size = DEFAULT_SAMPLE_SIZE;
	int check_output = 1;
	int iterations = 0, do_stateless = 0, do_stateful = 1;
	int ret = 0;
	char *out_file_name = NULL;
	struct isal_zstream stream;
	struct isal_huff_histogram histogram;
	struct isal_hufftables hufftable;

	while ((c = getopt(argc, argv, "vht:c:s:o:i:")) != -1) {
		switch (c) {
		case 'v':
			check_output ^= 1;
			break;
		case 't':
			if (atoi(optarg) == 1) {
				do_stateful = 0;
				do_stateless = 1;
			}
			break;
		case 'c':
			segment_size = str_to_i(optarg);
			break;
		case 's':
			sample_size = str_to_i(optarg);
			break;
		case 'o':
			out_file_name = optarg;
			break;
		case 'i':
			iterations = str_to_i(optarg);
			break;
		case 'h':
		default:
			usage();
			break;
		}
	}

	// Open input file
	if (optind < argc) {
		if (!(in = fopen(argv[optind], "rb"))) {
			fprintf(stderr, "Can't open %s for reading\n", argv[optind]);
			exit(1);
		}
	} else
		usage();

	// Optionally open output file
	if (out_file_name != NULL) {
		if (!(out = fopen(out_file_name, "wb"))) {
			fprintf(stderr, "Can't open %s for writing\n", out_file_name);
			exit(1);
		}
	}

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

	/*
	 * Allocate space for entire input file and output
	 * (assuming some possible expansion on output size)
	 */
	infile_size = get_filesize(in);
	if (infile_size == 0) {
		printf("Input file has zero length\n");
		usage();
	}

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

	outbuf_size = infile_size * 1.30 > MIN_BUF_SIZE ? infile_size * 1.30 : MIN_BUF_SIZE;

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

	int hist_size = sample_size > segment_size ? segment_size : sample_size;

	printf("semi-dynamic sample=%d segment=%d %s\n", hist_size, segment_size,
	       do_stateful ? "stateful" : "stateless");
	printf("igzip_file_perf: %s %d iterations\n", argv[optind], 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);
	}

	struct perf start, stop;

	if (do_stateful) {
		perf_start(&start);

		for (i = 0; i < iterations; i++) {
			isal_deflate_init(&stream);
			stream.end_of_stream = 0;
			stream.flush = SYNC_FLUSH;
			stream.next_in = inbuf;
			stream.next_out = outbuf;
			stream.avail_out = outbuf_size;
			int remaining = infile_size;
			int chunk_size = segment_size;

			while (remaining > 0) {
				// Generate custom hufftables on sample
				memset(&histogram, 0, sizeof(struct isal_huff_histogram));
				if (remaining < segment_size * 2) {
					chunk_size = remaining;
					stream.end_of_stream = 1;
				}
				int hist_rem =
				    (hist_size > chunk_size) ? chunk_size : hist_size;
				isal_update_histogram(stream.next_in, hist_rem, &histogram);

				if (hist_rem == chunk_size)
					isal_create_hufftables_subset(&hufftable, &histogram);
				else
					isal_create_hufftables(&hufftable, &histogram);

				// Compress with custom table
				stream.avail_in = chunk_size;
				stream.hufftables = &hufftable;
				remaining -= chunk_size;
				isal_deflate(&stream);
				if (stream.internal_state.state != ZSTATE_NEW_HDR)
					break;
			}
		}
		perf_stop(&stop);
	}

	if (do_stateless) {
		perf_start(&start);

		for (i = 0; i < iterations; i++) {
			isal_deflate_stateless_init(&stream);
			stream.end_of_stream = 0;
			stream.flush = FULL_FLUSH;
			stream.next_in = inbuf;
			stream.next_out = outbuf;
			int remaining = infile_size;
			int chunk_size = segment_size;

			while (remaining > 0) {
				// Generate custom hufftables on sample
				memset(&histogram, 0, sizeof(struct isal_huff_histogram));
				if (remaining < segment_size * 2) {
					chunk_size = remaining;
					stream.end_of_stream = 1;
				}
				int hist_rem =
				    (hist_size > chunk_size) ? chunk_size : hist_size;
				isal_update_histogram(stream.next_in, hist_rem, &histogram);

				if (hist_rem == chunk_size)
					isal_create_hufftables_subset(&hufftable, &histogram);
				else
					isal_create_hufftables(&hufftable, &histogram);

				// Compress with custom table
				stream.avail_in = chunk_size;
				stream.avail_out = chunk_size + 8 * (1 + (chunk_size >> 16));
				stream.hufftables = &hufftable;
				remaining -= chunk_size;
				isal_deflate_stateless(&stream);
				if (stream.avail_in != 0)
					break;
			}
		}
		perf_stop(&stop);
	}

	if (stream.avail_in != 0) {
		printf("Could not compress all of inbuf\n");
		ret = 1;
	}

	printf("  file %s - in_size=%lu out_size=%d iter=%d ratio=%3.1f%%\n", argv[optind],
	       infile_size, stream.total_out, i, 100.0 * stream.total_out / infile_size);

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

	if (out != NULL) {
		printf("writing %s\n", out_file_name);
		fwrite(outbuf, 1, stream.total_out, out);
		fclose(out);
	}

	fclose(in);

	if (check_output) {
		unsigned char *inflate_buf;
		struct inflate_state istate;

		if (NULL == (inflate_buf = malloc(infile_size))) {
			fprintf(stderr, "Can't allocate reconstruct buffer memory\n");
			exit(0);
		}
		isal_inflate_init(&istate);
		istate.next_in = outbuf;
		istate.avail_in = stream.total_out;
		istate.next_out = inflate_buf;
		istate.avail_out = infile_size;
		int check = isal_inflate(&istate);

		if (memcmp(inflate_buf, inbuf, infile_size)) {
			printf("inflate check Fail\n");
			printf(" ret %d total_inflate=%d\n", check, istate.total_out);
			for (i = 0; i < infile_size; i++) {
				if (inbuf[i] != inflate_buf[i]) {
					printf("  first diff at offset=%d\n", i);
					break;
				}
			}
			ret = 1;
		} else
			printf("inflate check Pass\n");
		free(inflate_buf);
	}

	printf("End of igzip_semi_dyn_file_perf\n\n");
	return ret;
}