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/*
This file is part of GNUnet.
(C) 2003, 2004, 2005, 2006, 2009 Christian Grothoff (and other contributing authors)
GNUnet 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; either version 2, or (at your
option) any later version.
GNUnet 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 GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file util/test_os_load.c
* @brief testcase for util/os_load.c
*/
#include "platform.h"
#include "gnunet_common.h"
#include "gnunet_configuration_lib.h"
#include "gnunet_crypto_lib.h"
#include "gnunet_disk_lib.h"
#include "gnunet_os_lib.h"
#include "gnunet_time_lib.h"
#define VERBOSE 0
static int
testcpu ()
{
static long k;
int ret;
struct GNUNET_TIME_Absolute start;
struct GNUNET_CONFIGURATION_Handle *cfg;
fprintf (stderr, "CPU load test, this may take a while.");
cfg = GNUNET_CONFIGURATION_create ();
GNUNET_assert (cfg != NULL);
/* need to run each phase for more than 10s since
statuscalls only refreshes that often... */
GNUNET_CONFIGURATION_set_value_number (cfg, "LOAD", "MAXCPULOAD", 100);
GNUNET_OS_load_cpu_get (cfg);
start = GNUNET_TIME_absolute_get ();
while ((GNUNET_TIME_absolute_get_duration (start).value < 120 * 1000) &&
(0 != GNUNET_OS_load_cpu_get (cfg)))
sleep (1);
start = GNUNET_TIME_absolute_get ();
ret = GNUNET_OS_load_cpu_get (cfg);
if (ret > 10)
{
fprintf (stderr,
"\nWARNING: base load too high (%d) to run CPU load test.\n",
ret);
GNUNET_CONFIGURATION_destroy (cfg);
return 0;
}
if (ret == -1)
{
fprintf (stderr, "\nWARNING: CPU load determination not supported.\n");
GNUNET_CONFIGURATION_destroy (cfg);
return 0;
}
while (GNUNET_TIME_absolute_get_duration (start).value < 60 * 1000)
{
k++; /* do some processing to drive load up */
if (ret < GNUNET_OS_load_cpu_get (cfg))
break;
}
if (ret >= GNUNET_OS_load_cpu_get (cfg))
{
fprintf (stderr,
"\nbusy loop failed to increase CPU load: %d >= %d.",
ret, GNUNET_OS_load_cpu_get (cfg));
}
else
{
#if VERBOSE
fprintf (stderr,
"\nbusy loop increased CPU load: %d < %d.",
ret, GNUNET_OS_load_cpu_get (cfg));
#endif
}
fprintf (stderr, "\n");
GNUNET_CONFIGURATION_destroy (cfg);
return 0;
}
static int
testdisk ()
{
int ret;
struct GNUNET_DISK_FileHandle *fh;
char buf[65536];
struct GNUNET_TIME_Absolute start;
struct GNUNET_CONFIGURATION_Handle *cfg;
fprintf (stderr, "IO load test, this may take a while.");
cfg = GNUNET_CONFIGURATION_create ();
GNUNET_assert (cfg != NULL);
/* need to run each phase for more than 10s since
statuscalls only refreshes that often... */
GNUNET_CONFIGURATION_set_value_number (cfg, "LOAD", "MAXIOLOAD", 100);
GNUNET_OS_load_disk_get (cfg);
start = GNUNET_TIME_absolute_get ();
while ((GNUNET_TIME_absolute_get_duration (start).value < 12 * 1000) &&
(0 != GNUNET_OS_load_disk_get (cfg)))
sleep (1);
start = GNUNET_TIME_absolute_get ();
ret = GNUNET_OS_load_disk_get (cfg);
if (ret > 10)
{
fprintf (stderr,
"WARNING: base load too high (%d) to run IO load test.\n",
ret);
GNUNET_CONFIGURATION_destroy (cfg);
return 0;
}
if (ret == -1)
{
fprintf (stderr, "WARNING: IO load determination not supported.\n");
GNUNET_CONFIGURATION_destroy (cfg);
return 0;
}
memset (buf, 42, sizeof (buf));
fh = GNUNET_DISK_file_open (".loadfile", GNUNET_DISK_OPEN_WRITE
| GNUNET_DISK_OPEN_CREATE,
GNUNET_DISK_PERM_USER_READ |
GNUNET_DISK_PERM_USER_WRITE);
GNUNET_assert (GNUNET_NO == GNUNET_DISK_handle_invalid (fh));
while (GNUNET_TIME_absolute_get_duration (start).value < 60 * 1000)
{
GNUNET_DISK_file_seek (fh,
GNUNET_CRYPTO_random_u64
(GNUNET_CRYPTO_QUALITY_WEAK, 1024 * 1024 * 1024),
GNUNET_DISK_SEEK_SET);
GNUNET_assert (sizeof (buf) ==
GNUNET_DISK_file_write (fh, buf, sizeof (buf)));
GNUNET_DISK_file_sync (fh);
if (ret < GNUNET_OS_load_disk_get (cfg))
break;
}
GNUNET_break (GNUNET_OK == GNUNET_DISK_file_close (fh));
GNUNET_break (0 == UNLINK (".loadfile"));
if (ret >= GNUNET_OS_load_disk_get (cfg))
{
fprintf (stderr,
"\nbusy loop failed to increase IO load: %d >= %d.",
ret, GNUNET_OS_load_disk_get (cfg));
ret = 0;
}
else
{
#if VERBOSE
fprintf (stderr,
"\nbusy loop increased disk load: %d < %d.",
ret, GNUNET_OS_load_disk_get (cfg));
#endif
ret = 0;
}
fprintf (stderr, "\n");
GNUNET_CONFIGURATION_destroy (cfg);
return ret;
}
int
main (int argc, char *argv[])
{
int errCnt = 0;
GNUNET_log_setup ("test-os-load", "WARNING", NULL);
if (0 != testcpu ())
errCnt++;
if (0 != testdisk ())
errCnt++;
return errCnt;
}
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