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rippled/Subtrees/websocket/examples/stress_client/stress_client.cpp

239 lines
8.7 KiB
C++

/*
* Copyright (c) 2011, Peter Thorson. All rights reserved.
*
* 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 WebSocket++ Project 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 PETER THORSON 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 "../../src/endpoint.hpp"
#include "../../src/roles/client.hpp"
#include "../../src/md5/md5.hpp"
#include <boost/thread.hpp>
#include <iostream>
// PLATFORM SPECIFIC STUFF
#include <unistd.h>
#include <sys/resource.h>
#include <time.h>
int msleep(unsigned long milisec);
int msleep(unsigned long milisec)
{
struct timespec req={0};
time_t sec=(int)(milisec/1000);
milisec=milisec-(sec*1000);
req.tv_sec=sec;
req.tv_nsec=milisec*1000000L;
while(nanosleep(&req,&req)==-1)
continue;
return 1;
}
// END PLATFORM SPECIFIC STUFF
typedef websocketpp::endpoint<websocketpp::role::client,websocketpp::socket::plain> plain_endpoint_type;
typedef plain_endpoint_type::handler_ptr plain_handler_ptr;
typedef plain_endpoint_type::connection_ptr connection_ptr;
class stress_client_handler : public plain_endpoint_type::handler {
public:
typedef stress_client_handler type;
typedef plain_endpoint_type::connection_ptr connection_ptr;
stress_client_handler(int num_connections)
: m_connections_max(num_connections),
m_connections_cur(0) {
}
void on_open(connection_ptr connection) {
if (!m_timer) {
m_timer.reset(new boost::asio::deadline_timer(connection->get_io_service(),boost::posix_time::seconds(0)));
m_timer->expires_from_now(boost::posix_time::milliseconds(250));
m_timer->async_wait(boost::bind(&type::on_timer,this,connection,boost::asio::placeholders::error));
}
m_connections_cur++;
if (m_connections_cur == m_connections_max) {
boost::posix_time::ptime now = boost::posix_time::microsec_clock::local_time();
boost::posix_time::time_period period(m_start_time,now);
int ms = period.length().total_milliseconds();
std::cout << "Started " << m_connections_cur << " in " << ms << "ms" << " (" << m_connections_cur/(ms/1000.0) << "/s)" << std::endl;
}
}
void on_message(connection_ptr connection, websocketpp::message::data::ptr msg) {
//std::cout << "got message of size: " << msg->get_payload().size() << std::endl;
m_msg_stats[websocketpp::md5_hash_hex(msg->get_payload())]++;
if (m_msg_stats[websocketpp::md5_hash_hex(msg->get_payload())] == m_connections_max) {
send_stats_update(connection);
}
}
void on_fail(connection_ptr connection) {
std::cout << "connection failed" << std::endl;
}
void on_timer(connection_ptr connection,const boost::system::error_code& error) {
if (error) {
std::cout << "on_timer error" << std::endl;
return;
}
send_stats_update(connection);
m_timer->expires_from_now(boost::posix_time::milliseconds(250));
m_timer->async_wait(boost::bind(&type::on_timer,this,connection,boost::asio::placeholders::error));
}
void on_close(connection_ptr connection) {
m_timer->cancel();
}
boost::posix_time::ptime m_start_time;
private:
void send_stats_update(connection_ptr connection) {
if (m_msg_stats.empty()) {
return;
}
// example: `ack:e3458d0aceff8b70a3e5c0afec632881=38;e3458d0aceff8b70a3e5c0afec632881=42;`
std::stringstream msg;
msg << "ack:";
std::map<std::string,size_t>::iterator it;
for (it = m_msg_stats.begin(); it != m_msg_stats.end(); it++) {
msg << (*it).first << "=" << (*it).second << ";";
}
std::cout << "sending " << msg.str() << std::endl;
connection->send(msg.str());
m_msg_stats.clear();
}
unsigned int m_connections_max;
unsigned int m_connections_cur;
std::map<std::string,size_t> m_msg_stats;
boost::shared_ptr<boost::asio::deadline_timer> m_timer;
};
int main(int argc, char* argv[]) {
std::string uri = "ws://localhost:9002/";
int num_connections = 100;
int batch_size = 25;
int delay_ms = 16;
if (argc > 1) {
if (argc != 5) {
std::cout << "Usage: `echo_client test_url num_connections batch_size delay_ms`" << std::endl;
} else {
uri = argv[1];
num_connections = atoi(argv[2]);
batch_size = atoi(argv[3]);
delay_ms = atoi(argv[4]);
}
}
// 12288 is max OS X limit without changing kernal settings
const rlim_t ideal_size = 200+num_connections;
rlim_t old_size;
rlim_t old_max;
struct rlimit rl;
int result;
result = getrlimit(RLIMIT_NOFILE, &rl);
if (result == 0) {
//std::cout << "System FD limits: " << rl.rlim_cur << " max: " << rl.rlim_max << std::endl;
old_size = rl.rlim_cur;
old_max = rl.rlim_max;
if (rl.rlim_cur < ideal_size) {
std::cout << "Attempting to raise system file descriptor limit from " << rl.rlim_cur << " to " << ideal_size << std::endl;
rl.rlim_cur = ideal_size;
if (rl.rlim_max < ideal_size) {
rl.rlim_max = ideal_size;
}
result = setrlimit(RLIMIT_NOFILE, &rl);
if (result == 0) {
std::cout << "Success" << std::endl;
} else if (result == EPERM) {
std::cout << "Failed. This server will be limited to " << old_size << " concurrent connections. Error code: Insufficient permissions. Try running process as root. system max: " << old_max << std::endl;
} else {
std::cout << "Failed. This server will be limited to " << old_size << " concurrent connections. Error code: " << errno << " system max: " << old_max << std::endl;
}
}
}
try {
plain_handler_ptr handler(new stress_client_handler(num_connections));
plain_endpoint_type endpoint(handler);
endpoint.alog().unset_level(websocketpp::log::alevel::ALL);
endpoint.elog().set_level(websocketpp::log::elevel::ALL);
//endpoint.alog().set_level(websocketpp::log::alevel::DEVEL);
//endpoint.alog().set_level(websocketpp::log::alevel::DEBUG_CLOSE);
std::set<connection_ptr> connections;
connections.insert(endpoint.connect(uri));
boost::thread t(boost::bind(&plain_endpoint_type::run, &endpoint, false));
std::cout << "launching " << num_connections << " connections to " << uri << " in batches of " << batch_size << std::endl;
boost::dynamic_pointer_cast<stress_client_handler>(handler)->m_start_time = boost::posix_time::microsec_clock::local_time();
for (int i = 0; i < num_connections-1; i++) {
if (i % batch_size == 0) {
//sleep(1);
msleep(delay_ms);
}
connections.insert(endpoint.connect(uri));
}
std::cout << "complete" << std::endl;
t.join();
std::cout << "done" << std::endl;
} catch (std::exception& e) {
std::cerr << "Exception: " << e.what() << std::endl;
}
return 0;
}