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/* Copyright (C) 2004 MySQL AB
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 "sysbench.h"
/* CPU test arguments */
static sb_arg_t cpu_args[] =
{
{"cpu-max-prime", "upper limit for primes generator", SB_ARG_TYPE_INT, "10000"},
{NULL, NULL, SB_ARG_TYPE_NULL, NULL}
};
/* CPU test operations */
static int cpu_init(void);
static void cpu_print_mode(void);
static sb_request_t cpu_get_request(int);
static int cpu_execute_request(sb_request_t *, int);
static void cpu_print_stats(void);
static int cpu_done(void);
static sb_test_t cpu_test =
{
"cpu",
"CPU performance test",
{
cpu_init,
NULL,
NULL,
cpu_print_mode,
cpu_get_request,
cpu_execute_request,
cpu_print_stats,
NULL,
NULL,
cpu_done
},
{
NULL,
NULL,
NULL,
NULL
},
cpu_args,
{NULL, NULL}
};
/* Upper limit for primes */
static unsigned int max_prime;
/* Request counter */
static unsigned int req_performed;
/* Counter mutex */
static pthread_mutex_t request_mutex;
int register_test_cpu(sb_list_t * tests)
{
SB_LIST_ADD_TAIL(&cpu_test.listitem, tests);
return 0;
}
int cpu_init(void)
{
max_prime = sb_get_value_int("cpu-max-prime");
if (max_prime <= 0)
{
log_text(LOG_FATAL, "Invalid value of cpu-max-prime: %d.", max_prime);
return 1;
}
req_performed = 0;
pthread_mutex_init(&request_mutex, NULL);
return 0;
}
sb_request_t cpu_get_request(int tid)
{
sb_request_t req;
(void)tid; /* unused */
if (req_performed >= sb_globals.max_requests)
{
req.type = SB_REQ_TYPE_NULL;
return req;
}
req.type = SB_REQ_TYPE_CPU;
pthread_mutex_lock(&request_mutex);
req_performed++;
pthread_mutex_unlock(&request_mutex);
return req;
}
int cpu_execute_request(sb_request_t *r, int thread_id)
{
unsigned long long c;
unsigned long long l,t;
unsigned long long n=0;
log_msg_t msg;
log_msg_oper_t op_msg;
(void)r; /* unused */
/* Prepare log message */
msg.type = LOG_MSG_TYPE_OPER;
msg.data = &op_msg;
/* So far we're using very simple test prime number tests in 64bit */
LOG_EVENT_START(msg, thread_id);
for(c=3; c < max_prime; c++)
{
t = sqrt(c);
for(l = 2; l <= t; l++)
if (c % l == 0)
break;
if (l > t )
n++;
}
LOG_EVENT_STOP(msg, thread_id);
return 0;
}
void cpu_print_mode(void)
{
log_text(LOG_INFO, "Doing CPU performance benchmark\n");
}
void cpu_print_stats(void)
{
log_text(LOG_NOTICE, "Maximum prime number checked in CPU test: %d\n",
max_prime);
}
int cpu_done(void)
{
pthread_mutex_destroy(&request_mutex);
return 0;
}
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