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/* Copyright (C) 2004 MySQL AB
Copyright (C) 2004-2017 Alexey Kopytov <akopytov@gmail.com>
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; either version 2 of the License, or
(at your option) any later version.
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 Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef _WIN32
# include "sb_win.h"
#endif
#ifdef HAVE_MATH_H
# include <math.h>
#endif
#include <inttypes.h>
#include "sysbench.h"
/* CPU test arguments */
static sb_arg_t cpu_args[] =
{
SB_OPT("cpu-max-prime", "upper limit for primes generator", "10000", INT),
SB_OPT_END
};
/* CPU test operations */
static int cpu_init(void);
static void cpu_print_mode(void);
static sb_event_t cpu_next_event(int thread_id);
static int cpu_execute_event(sb_event_t *, int);
static void cpu_report_cumulative(sb_stat_t *);
static int cpu_done(void);
static sb_test_t cpu_test =
{
.sname = "cpu",
.lname = "CPU performance test",
.ops = {
.init = cpu_init,
.print_mode = cpu_print_mode,
.next_event = cpu_next_event,
.execute_event = cpu_execute_event,
.report_cumulative = cpu_report_cumulative,
.done = cpu_done
},
.args = cpu_args
};
/* Upper limit for primes */
static unsigned int max_prime;
int register_test_cpu(sb_list_t * tests)
{
SB_LIST_ADD_TAIL(&cpu_test.listitem, tests);
return 0;
}
int cpu_init(void)
{
int prime_option= sb_get_value_int("cpu-max-prime");
if (prime_option <= 0)
{
log_text(LOG_FATAL, "Invalid value of cpu-max-prime: %d.", prime_option);
return 1;
}
max_prime= (unsigned int)prime_option;
return 0;
}
sb_event_t cpu_next_event(int thread_id)
{
sb_event_t req;
(void) thread_id; /* unused */
req.type = SB_REQ_TYPE_CPU;
return req;
}
int cpu_execute_event(sb_event_t *r, int thread_id)
{
unsigned long long c;
unsigned long long l;
double t;
unsigned long long n=0;
(void)thread_id; /* unused */
(void)r; /* unused */
/* So far we're using very simple test prime number tests in 64bit */
for(c=3; c < max_prime; c++)
{
t = sqrt((double)c);
for(l = 2; l <= t; l++)
if (c % l == 0)
break;
if (l > t )
n++;
}
return 0;
}
void cpu_print_mode(void)
{
log_text(LOG_INFO, "Doing CPU performance benchmark\n");
log_text(LOG_NOTICE, "Prime numbers limit: %d\n", max_prime);
}
/* Print cumulative stats. */
void cpu_report_cumulative(sb_stat_t *stat)
{
log_text(LOG_NOTICE, "CPU speed:");
log_text(LOG_NOTICE, " events per second: %8.2f",
stat->events / stat->time_interval);
sb_report_cumulative(stat);
}
int cpu_done(void)
{
return 0;
}
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