Page MenuHomeClusterLabs Projects
Files F3153734

cpgbench.c
No OneTemporary
Actions

cpgbench.c
View Options

/*
* Copyright (c) 2006, 2009 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Steven Dake (sdake@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <errno.h>
#include <unistd.h>
#include <time.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <sys/uio.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <pthread.h>
#include <qb/qblog.h>
#include <qb/qbutil.h>
#include <corosync/corotypes.h>
#include <corosync/cpg.h>
static cpg_handle_t handle;
static pthread_t thread;
#ifndef timersub
#define timersub(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
if ((result)->tv_usec < 0) { \
--(result)->tv_sec; \
(result)->tv_usec += 1000000; \
} \
} while (0)
#endif /* timersub */
static int alarm_notice;
static void cpg_bm_confchg_fn (
cpg_handle_t handle_in,
const struct cpg_name *group_name,
const struct cpg_address *member_list, size_t member_list_entries,
const struct cpg_address *left_list, size_t left_list_entries,
const struct cpg_address *joined_list, size_t joined_list_entries)
{
}
static unsigned int write_count;
static void cpg_bm_deliver_fn (
cpg_handle_t handle_in,
const struct cpg_name *group_name,
uint32_t nodeid,
uint32_t pid,
void *msg,
size_t msg_len)
{
write_count++;
}
static cpg_callbacks_t callbacks = {
.cpg_deliver_fn = cpg_bm_deliver_fn,
.cpg_confchg_fn = cpg_bm_confchg_fn
};
#define ONE_MEG 1048576
static char data[ONE_MEG];
static void cpg_benchmark (
cpg_handle_t handle_in,
int write_size)
{
struct timeval tv1, tv2, tv_elapsed;
struct iovec iov;
unsigned int res;
alarm_notice = 0;
iov.iov_base = data;
iov.iov_len = write_size;
write_count = 0;
alarm (10);
gettimeofday (&tv1, NULL);
do {
res = cpg_mcast_joined (handle_in, CPG_TYPE_AGREED, &iov, 1);
} while (alarm_notice == 0 && (res == CS_OK || res == CS_ERR_TRY_AGAIN));
gettimeofday (&tv2, NULL);
timersub (&tv2, &tv1, &tv_elapsed);
printf ("%5d messages received ", write_count);
printf ("%5d bytes per write ", write_size);
printf ("%7.3f Seconds runtime ",
(tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)));
printf ("%9.3f TP/s ",
((float)write_count) / (tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)));
printf ("%7.3f MB/s.\n",
((float)write_count) * ((float)write_size) / ((tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)) * 1000000.0));
}
static void sigalrm_handler (int num)
{
alarm_notice = 1;
}
static struct cpg_name group_name = {
.value = "cpg_bm",
.length = 6
};
static void* dispatch_thread (void *arg)
{
cpg_dispatch (handle, CS_DISPATCH_BLOCKING);
return NULL;
}
int main (void) {
unsigned int size;
int i;
unsigned int res;
qb_log_init("cpgbench", LOG_USER, LOG_EMERG);
qb_log_ctl(QB_LOG_SYSLOG, QB_LOG_CONF_ENABLED, QB_FALSE);
qb_log_filter_ctl(QB_LOG_STDERR, QB_LOG_FILTER_ADD,
QB_LOG_FILTER_FILE, "*", LOG_DEBUG);
qb_log_ctl(QB_LOG_STDERR, QB_LOG_CONF_ENABLED, QB_TRUE);
size = 64;
signal (SIGALRM, sigalrm_handler);
res = cpg_initialize (&handle, &callbacks);
if (res != CS_OK) {
printf ("cpg_initialize failed with result %d\n", res);
exit (1);
}
pthread_create (&thread, NULL, dispatch_thread, NULL);
res = cpg_join (handle, &group_name);
if (res != CS_OK) {
printf ("cpg_join failed with result %d\n", res);
exit (1);
}
for (i = 0; i < 10; i++) { /* number of repetitions - up to 50k */
cpg_benchmark (handle, size);
signal (SIGALRM, sigalrm_handler);
size *= 5;
if (size >= (ONE_MEG - 100)) {
break;
}
}
res = cpg_finalize (handle);
if (res != CS_OK) {
printf ("cpg_finalize failed with result %d\n", res);
exit (1);
}
return (0);
}

File Metadata

Mime Type
text/x-c
Expires
Wed, Feb 26, 1:03 AM (1 d, 6 h)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
1398657
Default Alt Text
cpgbench.c (5 KB)

Event Timeline