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/*
* HardInfo - Displays System Information
* Copyright (C) 2017 Leandro A. F. Pereira <leandro@hardinfo.org>
*
* 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.
*
* 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 */
#define BENCH_DATA_SIZE 262144
#define CRUNCH_TIME 7
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);
free(compressed);
return NULL;
}
static gchar *get_test_data(gsize min_size) {
gchar *bdata_path, *data;
gsize data_size;
gchar *exp_data, *p;
gsize sz;
bdata_path = g_build_filename(params.path_data, "benchmark.data", NULL);
if (!g_file_get_contents(bdata_path, &data, &data_size, NULL)) {
g_free(bdata_path);
return NULL;
}
if (data_size < min_size) {
DEBUG("expanding %lu bytes of test data to %lu bytes", data_size, min_size);
exp_data = g_malloc(min_size + 1);
memcpy(exp_data, data, data_size);
p = exp_data + data_size;
sz = data_size;
while (sz < (min_size - data_size) ) {
memcpy(p, data, data_size);
p += data_size;
sz += data_size;
}
strncpy(p, data, min_size - sz);
g_free(data);
data = exp_data;
}
g_free(bdata_path);
return data;
}
void
benchmark_zlib(void)
{
bench_value r = EMPTY_BENCH_VALUE;
gchar *data = get_test_data(BENCH_DATA_SIZE);
if (!data)
return;
shell_view_set_enabled(FALSE);
shell_status_update("Running Zlib benchmark...");
r = benchmark_crunch_for(CRUNCH_TIME, 0, zlib_for, data);
r.result /= 100;
r.revision = 2;
snprintf(r.extra, 255, "zlib %s (built against: %s)", zlib_version, ZLIB_VERSION);
bench_results[BENCHMARK_ZLIB] = r;
g_free(data);
}
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