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/*
* HardInfo - Displays System Information
* Copyright (C) 2003-2007 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
*/
static gpointer
parallel_zlib(unsigned int start, unsigned int end, void *data, GTimer *timer)
{
GModule *libz;
gint i;
glong srclen = 65536;
static gulong (*compressBound) (glong srclen) = NULL;
static gint (*compress) (gchar *dst, glong *dstlen,
const gchar *src, glong srclen) = NULL;
if (!(compress && compressBound)) {
libz = g_module_open("libz", G_MODULE_BIND_LAZY);
if (!libz) {
libz = g_module_open("/usr/lib/libz.so", G_MODULE_BIND_LAZY);
if (!libz) {
g_warning("Cannot load ZLib: %s", g_module_error());
return NULL;
}
}
if (!g_module_symbol(libz, "compress", (gpointer) & compress)
|| !g_module_symbol(libz, "compressBound", (gpointer) & compressBound)) {
g_module_close(libz);
return NULL;
}
}
for (i = start; i <= end; i++) {
gchar *dst;
glong dstlen = compressBound(srclen);
dst = g_new0(gchar, dstlen);
compress(dst, &dstlen, data, srclen);
g_free(dst);
}
return NULL;
}
static void
benchmark_zlib(void)
{
gdouble elapsed = 0;
gchar *tmpsrc;
gchar *bdata_path;
shell_view_set_enabled(FALSE);
bdata_path = g_build_filename(params.path_data, "benchmark.data", NULL);
if (!g_file_get_contents(bdata_path, &tmpsrc, NULL, NULL)) {
g_free(bdata_path);
return;
}
shell_status_update("Compressing 64MB with default options...");
elapsed = benchmark_parallel_for(0, 1000, parallel_zlib, tmpsrc);
g_free(bdata_path);
g_free(tmpsrc);
bench_results[BENCHMARK_ZLIB] = 65536.0 / elapsed;
}
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