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MySQL数据库连接池压力测试.md

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压力测试

image.png

第一组（1000）测试

（模拟1000个人访问数据库） 不使用连接池

#include "pch.h"
#include <iostream>
#include "Connection.h"
#include "CommonConnectionPool.h"
using namespace std;

int main()
{
	clock_t begin = clock();
	for (int i = 0; i < 1000; ++i)
	{
		Connection conn;
		char sql[1024] = { 0 };
		sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
			"zhang san", 20, "male");
		conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
		conn.update(sql);
	}
	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;
	return 0;
}

image.png image.png image.png 我们接下来使用连接池

#include "pch.h"
#include <iostream>
#include "Connection.h"
#include "CommonConnectionPool.h"
using namespace std;

int main()
{
	clock_t begin = clock();
	ConnectionPool* cp = ConnectionPool::getConnectionPool();
	for (int i = 0; i < 1000; ++i)
	{

		shared_ptr<Connection> sp = cp->getConnection();
		char sql[1024] = { 0 };
		sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
			"zhang san", 20, "male");
		sp->update(sql);
	}
	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;
	return 0;
}

我们重复测试3次结果如下image.pngimage.pngimage.png

第二组（5000）测试

不使用连接池

int main()
{

	clock_t begin = clock();
	for (int i = 0; i < 5000; ++i)
	{
		Connection conn;
		char sql[1024] = { 0 };
		sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
			"zhang san", 20, "male");
		conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
		conn.update(sql);
	}
	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;
	return 0;
}

image.png 使用连接池

int main()
{
	clock_t begin = clock();
	ConnectionPool* cp = ConnectionPool::getConnectionPool();
	for (int i = 0; i < 5000; ++i)
	{

		shared_ptr<Connection> sp = cp->getConnection();
		char sql[1024] = { 0 };
		sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
			"zhang san", 20, "male");
		sp->update(sql);
	}
	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;
	return 0;
}
//使用连接池模拟5000个人访问数据库

image.png

第三组（10000）测试

不使用连接池

int main()
{

	clock_t begin = clock();
	for (int i = 0; i < 10000; ++i)
	{
		Connection conn;
		char sql[1024] = { 0 };
		sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
			"zhang san", 20, "male");
		conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
		conn.update(sql);
	}
	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;
	return 0;
}

image.png 带有连接池的

int main()
{
	clock_t begin = clock();
	ConnectionPool* cp = ConnectionPool::getConnectionPool();
	for (int i = 0; i < 10000; ++i)
	{

		shared_ptr<Connection> sp = cp->getConnection();
		char sql[1024] = { 0 };
		sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
			"zhang san", 20, "male");
		sp->update(sql);
	}
	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;
	return 0;
}
 //使用连接池模拟10000个人访问数据库

image.png

MySQL数据库连接池多线程压力测试

我们使用4线程测试，比较好除

4线程的连接池测试

第一组（1000）

int main()
{
	clock_t begin = clock();

	thread t1([]() {	
		ConnectionPool *cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 250; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
	});
	thread t2([]() {
		ConnectionPool *cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 250; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
	});
	thread t3([]() {
		ConnectionPool *cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 250; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
	});
	thread t4([]() {
		ConnectionPool *cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 250; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
	});

	t1.join();
	t2.join();
	t3.join();
	t4.join();

	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;


	return 0;
}

image.png 第二组（5000）

int main()
{
	clock_t begin = clock();

	thread t1([]() {
		ConnectionPool* cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 1250; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
		});
	thread t2([]() {
		ConnectionPool* cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 1250; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
		});
	thread t3([]() {
		ConnectionPool* cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 1250; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
		});
	thread t4([]() {
		ConnectionPool* cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 1250; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
		});

	t1.join();
	t2.join();
	t3.join();
	t4.join();

	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;


	return 0;
}

image.png第三组（10000）

int main()
{
	clock_t begin = clock();

	thread t1([]() {
		ConnectionPool* cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 2500; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
		});
	thread t2([]() {
		ConnectionPool* cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 2500; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
		});
	thread t3([]() {
		ConnectionPool* cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 2500; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
		});
	thread t4([]() {
		ConnectionPool* cp = ConnectionPool::getConnectionPool();
		for (int i = 0; i < 2500; ++i)
		{
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			shared_ptr<Connection> sp = cp->getConnection();
			sp->update(sql);
		}
		});

	t1.join();
	t2.join();
	t3.join();
	t4.join();

	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;


	return 0;
}

image.png

4线程的不使用连接池的测试

第一组（1000） 同一个用户名密码在4个线程同时进行登录访问，MySQL不允许， 我们需要把数据库事先连接一下

int main()
{
	
	Connection conn;
	conn.connect("127.0.0.1", 3306, "root", "toor", "chat");

	clock_t begin = clock();
	thread t1([]() {
		for (int i = 0; i < 250; ++i)
		{

			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});
	thread t2([]() {
		for (int i = 0; i < 250; ++i)
		{
			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});
	thread t3([]() {
		for (int i = 0; i < 250; ++i)
		{
			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});
	thread t4([]() {
		for (int i = 0; i < 250; ++i)
		{
			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});

	t1.join();
	t2.join();
	t3.join();
	t4.join();

	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;

	return 0;
}

image.png 第二组（5000）

int main()
{

	Connection conn;
	conn.connect("127.0.0.1", 3306, "root", "toor", "chat");

	clock_t begin = clock();
	thread t1([]() {
		for (int i = 0; i < 1250; ++i)
		{

			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});
	thread t2([]() {
		for (int i = 0; i < 1250; ++i)
		{
			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});
	thread t3([]() {
		for (int i = 0; i < 1250; ++i)
		{
			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});
	thread t4([]() {
		for (int i = 0; i < 1250; ++i)
		{
			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});

	t1.join();
	t2.join();
	t3.join();
	t4.join();

	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;

	return 0;
}

image.png 第三组（10000）

int main()
{

	Connection conn;
	conn.connect("127.0.0.1", 3306, "root", "toor", "chat");

	clock_t begin = clock();
	thread t1([]() {
		for (int i = 0; i < 2500; ++i)
		{

			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});
	thread t2([]() {
		for (int i = 0; i < 2500; ++i)
		{
			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});
	thread t3([]() {
		for (int i = 0; i < 2500; ++i)
		{
			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});
	thread t4([]() {
		for (int i = 0; i < 2500; ++i)
		{
			Connection conn;
			char sql[1024] = { 0 };
			sprintf(sql, "insert into user(name,age,sex) values('%s',%d,'%s')",
				"zhang san", 20, "male");
			conn.connect("127.0.0.1", 3306, "root", "toor", "chat");
			conn.update(sql);
		}
		});

	t1.join();
	t2.join();
	t3.join();
	t4.join();

	clock_t end = clock();
	cout << (end - begin) << "ms" << endl;

	return 0;
}

image.png

总记录

验证数据的插入操作所花费的时间，第一次测试使用普通的数据库访问操作，第二次测试使用带连接池的数据库访问操作，对比两次操作同样数据量所花费的时间，性能压力测试结果如下：

数据量 未使用连接池花费时间 使用连接池花费时间
1000 单线程：3520ms 四线程：1172ms 单线程：1489ms 四线程：976ms
5000 单线程：16859ms 四线程：5766ms 单线程：7711ms 四线程：4429ms
10000 单线程：34437ms 四线程：12616ms 单线程：14850ms 四线程：8442ms