我在我目前正在处理的 ASP.NET 项目中使用 MySQL,我做了一些测试来测试 MySQL .NET 提供程序的性能,但不幸的是我对结果不太满意。
一个仅打开连接的非常简单的循环在 SQL Server 中速度提高了 10 倍:
// MySQL
const string CONNECTION_STRING =
"server=localhost;database=testdb;user id=root;password=mypassword;max pool size=250;";
for (int i = 0; i < 5000; i++)
{
using (MySqlConnection con = new MySqlConnection(CONNECTION_STRING))
{
con.Open();
}
}
// SQL Server
const string CONNECTION_STRING = "Data Source=localhost;Initial Catalog=testdb;Integrated Security=True;max pool size=250;";
for (int i = 0; i < 5000; i++)
{
using (SqlConnection con = new SqlConnection(CONNECTION_STRING))
{
con.Open();
}
}
SQL Server 在其他方面也快得多(选择、更新、插入等)。我做错什么了吗?我应该更改任何服务器变量吗?
更多信息:
- 我在 Windows (5.0.51a-community-nt) 上运行 MySQL
- 测试中使用了 SQL Server 2005
- 规格:Windows XP SP2,CPU Intel 1.6GHz 双核,1024 MB RAM
这是MySQL的配置:
[client]
port = 3306
socket = /tmp/mysql.sock
[mysqld]
port = 3306
socket = /tmp/mysql.sock
skip-locking
key_buffer = 384M
max_allowed_packet = 1M
table_cache = 512
sort_buffer_size = 2M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size = 32M
thread_concurrency = 8
server-id = 1
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
[isamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
[myisamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
感谢您的任何建议...