用mysql自带工具mysqlslap对数据库进行压力测试

wedsddsa

mysqlslap是mysql自带的工具，不需要单独安装：
参数：-concurrency 代表并发数量，多个可以用逗号隔开，concurrency=10,50,100, 并发连接线程数分别是10、50、100个并发。
--engines 代表要测试的引擎，可以有多个，用分隔符隔开。
--iterations 代表要运行这些测试多少次。
--auto-generate-sql 代表用系统自己生成的SQL脚本来测试。
--auto-generate-sql-load-type 代表要测试的是读还是写还是两者混合的（read,write,update,mixed）
--number-of-queries 代表总共要运行多少次查询。每个客户运行的查询数量可以用查询总数/并发数来计算。
--debug-info 代表要额外输出CPU以及内存的相关信息。
--number-int-cols ：创建测试表的 int 型字段数量
--auto-generate-sql-add-autoincrement : 代表对生成的表自动添加auto_increment列，从5.1.18版本开始
--number-char-cols 创建测试表的 char 型字段数量。
--create-schema 测试的schema，MySQL中schema也就是database。
--query 使用自定义脚本执行测试，例如可以调用自定义的一个存储过程或者sql语句来执行测试。
--only-print 如果只想打印看看SQL语句是什么，可以用这个选项。
1，简单用法

1 2 3 4 5 6 7 8 9 10 11 12 13

[iyunv@Linux_Aolens_01 /home/aolens]# mysqlslap --user=root --password=password --auto-generate-sql    Benchmark    Average number of seconds to run all queries: 0.002 seconds    Minimum number of seconds to run all queries: 0.002 seconds    Maximum number of seconds to run all queries: 0.002 seconds    Number of clients running queries: 1    Average number of queries per client: 0

结果中各项含义：

• Average number of ... 运行所有语句的平均秒数
  
• Minimum number of ... 运行所有语句的最小秒数
  
• Maximum number of ... 运行所有语句的最大秒数
  
• Number of clients ... 客户端数量
  
• Average number of queries per client 每个客户端运行查询的平均数
  
  

2，添加并发

1 2 3 4 5 6 7

[iyunv@Linux_Aolens_01 /home/aolens]# mysqlslap --user=root --password=password --auto-generate-sql --concurrency=100 --number-of-queries=1000 Benchmark Average number of seconds to run all queries: 0.316 seconds Minimum number of seconds to run all queries: 0.316 seconds Maximum number of seconds to run all queries: 0.316 seconds Number of clients running queries: 100 Average number of queries per client: 10

3，使用自己测试库和测试语句

1 2 3 4 5 6 7

[iyunv@Linux_Aolens_01 /home/aolens]# mysqlslap --user=root --password=password --concurrency=10 --number-of-queries=100 --create-schema=wordpress --query="SELECT * FROM wordpress.wp_posts;" Benchmark Average number of seconds to run all queries: 4.255 seconds Minimum number of seconds to run all queries: 4.255 seconds Maximum number of seconds to run all queries: 4.255 seconds Number of clients running queries: 10 Average number of queries per client: 10

4，结合实际，对网站首页所请求的数据库连接做压力测试数据库Mariadb 10.0.14
首先给数据库安装审计插件，并启用

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

MariaDB [(none)]> show variables like '%audit%' -> ; +-------------------------------+-----------------------+ | Variable_name | Value | +-------------------------------+-----------------------+ | server_audit_events | | | server_audit_excl_users | | | server_audit_file_path | server_audit.log | | server_audit_file_rotate_now | OFF | | server_audit_file_rotate_size | 1000000 | | server_audit_file_rotations | 9 | | server_audit_incl_users | | | server_audit_logging | OFF | | server_audit_mode | 0 | | server_audit_output_type | file | | server_audit_syslog_facility | LOG_USER | | server_audit_syslog_ident | mysql-server_auditing | | server_audit_syslog_info | | | server_audit_syslog_priority | LOG_INFO | +-------------------------------+-----------------------+ 14 rows in set (0.00 sec)

发现已经安装了，没有安装的MariaDB [(none)]> INSTALL PLUGIN server_audit SONAME 'server_audit.so';
命令行启动审计功能：
       命令行启用audit ，重启后失效

1 2 3 4 5 6 7 8

MariaDB [(none)]> set global server_audit_file_rotate_size=1024*1024*1024; Query OK, 0 rows affected (0.01 sec) MariaDB [(none)]> set global server_audit_events='query,table'; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> set global server_audit_file_rotate_now=on; Query OK, 0 rows affected (0.00 sec) MariaDB [(none)]> set global server_audit_logging='ON'; Query OK, 0 rows affected (0.00 sec)

刷新一下首页查看审计日志里都有哪些SQL操作，对这些SQL进行压测：

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

mysqlslap --user=root --password=password --concurrency=20 --number-of-queries=1000 --create-schema=wordpress --query=" \ SELECT option_name, option_value FROM wp_options WHERE autoload = 'yes'; \ SELECT option_value FROM wp_options WHERE option_name = 'a3_lz_google_api_key' LIMIT 1; \ SELECT option_value FROM wp_options WHERE option_name = 'a3_lz_google_api_key_enable' LIMIT 1; \ SELECT option_value FROM wp_options WHERE option_name = '_transient_timeout_a3_lz_google_api_key_status' LIMIT 1; \ SELECT option_value FROM wp_options WHERE option_name = '_transient_a3_lz_google_api_key_status' LIMIT 1; \ SELECT option_value FROM wp_options WHERE option_name = 'wordpress_api_key' LIMIT 1; \ SELECT option_value FROM wp_options WHERE option_name = 'onp_license_clipboard-images' LIMIT 1; \ SELECT autoload FROM wp_options WHERE option_name = 'onp_license_clipboard-images'; \ SELECT option_value FROM wp_options WHERE option_name = 'onp_version_check_clipboard-images' LIMIT 1; \ SELECT option_value FROM wp_options WHERE option_name = 'ossdl_https' LIMIT 1; \ SELECT option_value FROM wp_options WHERE option_name = 'uninstall_plugins' LIMIT 1; \ SELECT option_value FROM wp_options WHERE option_name = 'a3_lazy_load_just_installed' LIMIT 1; \ SELECT option_value FROM wp_options WHERE option_name = 'akismet_comment_nonce' LIMIT 1; \ SELECT option_value FROM wp_options WHERE option_name = 'preload_cache_counter' LIMIT 1; \ SELECT option_value FROM wp_options WHERE option_name = 'rewrite_rules' LIMIT 1; \ ......" Benchmark Average number of seconds to run all queries: 40.931 seconds Minimum number of seconds to run all queries: 40.931 seconds Maximum number of seconds to run all queries: 40.931 seconds Number of clients running queries: 20 Average number of queries per client: 50