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/*
* HardInfo - Displays System Information
* Copyright (C) 2017 L. A. F. Pereira <l@tia.mat.br>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2 or later.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <glib.h>
#include <stdlib.h>
#include <zlib.h>
#include "benchmark.h"
/* zip/unzip 256KB blocks for 7 seconds
* result is number of full completions / 100 */
/* if anything changes in this block, increment revision */
#define BENCH_REVISION 3
#define BENCH_DATA_SIZE 262144
#define BENCH_DATA_MD5 "3753b649c4fa9ea4576fc8f89a773de2"
#define CRUNCH_TIME 7
#define VERIFY_RESULT 1
static unsigned int zlib_errors = 0;
static gpointer zlib_for(void *in_data, gint thread_number) {
char *compressed;
uLong bound = compressBound(BENCH_DATA_SIZE);
unsigned int i;
compressed = malloc(bound);
if (!compressed)
return NULL;
char uncompressed[BENCH_DATA_SIZE];
uLong compressedBound = bound;
uLong destBound = sizeof(uncompressed);
compress(compressed, &compressedBound, in_data, BENCH_DATA_SIZE);
uncompress(uncompressed, &destBound, compressed, compressedBound);
if (VERIFY_RESULT) {
int cr = memcmp(in_data, uncompressed, BENCH_DATA_SIZE);
if (!!cr) {
zlib_errors++;
bench_msg("zlib error: uncompressed != original");
}
}
free(compressed);
return NULL;
}
void
benchmark_zlib(void)
{
bench_value r = EMPTY_BENCH_VALUE;
gchar *test_data = get_test_data(BENCH_DATA_SIZE);
if (!test_data)
return;
shell_view_set_enabled(FALSE);
shell_status_update("Running Zlib benchmark...");
gchar *d = md5_digest_str(test_data, BENCH_DATA_SIZE);
if (!SEQ(d, BENCH_DATA_MD5))
bench_msg("test data has different md5sum: expected %s, actual %s", BENCH_DATA_MD5, d);
r = benchmark_crunch_for(CRUNCH_TIME, 0, zlib_for, test_data);
r.result /= 100;
r.revision = BENCH_REVISION;
snprintf(r.extra, 255, "zlib %s (built against: %s), d:%s, e:%d", zlib_version, ZLIB_VERSION, d, zlib_errors);
bench_results[BENCHMARK_ZLIB] = r;
g_free(test_data);
g_free(d);
}
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