MySQL MySQL database stress test tool (MYSQLSLAP)

Mysqlslap is the official stress testing tool from the beginning of MySQL version 5.1.4. stress testing is performed by simulating multiple concurrent clients accessing MySQL concurrently, providing a detailed performance report of SQL execution data, and a good comparison of performance differences between multiple storage engines (MYISAM,INNODB, etc.) under the same concurrency pressure in the same environment.

Mysqlslap Official Document: https://dev.mysql.com/doc/refman/5.6/en/mysqlslap.html

Table 4.14 mysqlslap Options

Format	Description	introduced
--auto-generate-sql	Generate SQL statements automatically when they is not supplied in files or using command options
--auto-generate-sql-add-autoincrement	ADD auto_increment column to automatically generated tables
--auto-generate-sql-execute-number	Specify how many queries to generate automatically
--auto-generate-sql-guid-primary	ADD a guid-based primary key to automatically generated tables
--auto-generate-sql-load-type	Specify the test load type
--auto-generate-sql-secondary-indexes	Specify how many secondary indexes to add to automatically generated tables
--auto-generate-sql-unique-query-number	How many different queries to generate for automatic tests.
--auto-generate-sql-unique-write-number	How many different queries to generate for--auto-generate-sql-write-number
--auto-generate-sql-write-number	How many row inserts to perform on each thread
--commit	How many statements to execute before committing.
--compress	Compress all information sent between client and server
--concurrency	Number of clients to simulate when issuing the SELECT statement
--create	File or string containing the statement to use for creating the table
--create-schema	Schema in which to run the tests
--csv	Generate output in comma-separated values format
--debug	Write Debugging Log
--debug-check	Print Debugging information when program exits
--debug-info	Print debugging information, memory, and CPU statistics when program exits
--default-auth	Authentication plugin to use	5.6.2
--defaults-extra-file	Read named option file in addition to usual option files
--defaults-file	Read only named option file
--defaults-group-suffix	Option Group suffix value
--delimiter	Delimiter to use in SQL statements
--detach	Detach (Close and reopen) each connection after each N statements
--enable-cleartext-plugin	Enable cleartext Authentication Plugin	5.6.7
--engine	Storage engine to use for creating the table
--help	Display Help message and exit
--host	Connect to MySQL server on given host
--iterations	Number of times to run the tests
--login-path	Read login path options from. mylogin.cnf	5.6.6
--no-defaults	Read no option files
--no-drop	Don't drop any schema created during the test run	5.6.3
--number-char-cols	Number of VARCHAR columns to use if--AUTO-GENERATE-SQL is specified
--number-int-cols	Number of INT columns to use if--AUTO-GENERATE-SQL is specified
--number-of-queries	Limit each client to approximately this number of queries
--only-print	Don't connect to databases. Mysqlslap only prints what it would has done
--password	Password to use when connecting to server
--pipe	On Windows, connect to server using named pipe
--plugin-dir	Directory where plugins is installed	5.6.2
--port	TCP/IP port number to use for connection
--post-query	File or string containing the statement to execute after the tests has completed
--post-system	String to execute using System () after the tests has completed
--pre-query	File or string containing the statement to execute before running the tests
--pre-system	String to execute using System () before running the tests
--print-defaults	Print default Options
--protocol	Connection protocol to use
--query	File or string containing the SELECT statement to use for retrieving data
--secure-auth	Do not send passwords to server in old (pre-4.1) format	5.6.17
--shared-memory-base-name	The name of the shared memory to use for shared-memory connections
--silent	Silent mode
--socket	For connections to localhost, the Unix socket file
--ssl	Enable Secure connection
--ssl-ca	Path of file that contains list of trusted SSL CAs
--ssl-capath	Path of directory that contains trusted SSL CA certificates in PEM format
--ssl-cert	Path of file that contains X509 certificate in PEM format
--ssl-cipher	List of permitted ciphers to use for connection encryption
--ssl-crl	Path of file that contains certificate revocation lists	5.6.3
--ssl-crlpath	Path of directory that contains certificate revocation list files	5.6.3
--ssl-key	Path of file that contains X509 key in PEM format
--ssl-mode	Security State of connection to server	5.6.30
--ssl-verify-server-cert	Verify Server certificate Common name value against host name used when connecting to server
--user	MySQL user name to use when connecting to server
--verbose	Verbose mode
--version	Display Version information and exit

Parameter reference table:
--host=host_name, -h host_name  连接到的MySQL服务器的主机名（或IP地址），默认为本机localhost

--user=user_name, -u user_name  连接MySQL服务时用的用户名 --password[=password], -p[password]  连接MySQL服务时用的密码 --create-schema 代表自定义的测试库名称，测试的schema，MySQL中schema也就是database。 (没指定使用哪个数据库时，可能会遇到错误mysqlslap: Error when connecting to server: 1049 Unknown database  ‘mysqlslap‘ ) --query=name,-q 使用自定义脚本执行测试（可以是SQL字符串或脚本），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。 --create 创建表所需的SQL（可以是SQL字符串或脚本） --concurrency=N, -c N 表示并发量，也就是模拟多少个客户端同时执行query。可指定多个值，以逗号或者--delimiter参数指定的值做为分隔符。例如：--concurrency=100,200,500（分别执行100、200、500个并发）。 --iterations=N, -i N   测试执行的迭代次数，代表要在不同的并发环境中，各自运行测试多少次；多次运行以便让结果更加准确。 --number-of-queries=N 总的测试查询次数(并发客户数×每客户查询次数) --engine=engine_name, -e engine_name 代表要测试的引擎，可以有多个，用分隔符隔开。例如：--engine=myisam,innodb,memory。 --auto-generate-sql, -a 自动生成测试表和数据，表示用mysqlslap工具自己生成的SQL脚本来测试并发压力。 --auto-generate-sql-load- type = type 测试语句的类型。代表要测试的环境是读操作还是写操作还是两者混合的。取值包括： read (scan tables), write (insert into tables), key ( read primary keys), update (update primary keys), or mixed (half inserts, half scanning selects). 默认值是：mixed. --auto-generate-sql-add-auto-increment 代表对生成的表自动添加auto_increment列，从5.1.18版本开始支持。 --number-char-cols=N, -x N 自动生成的测试表中包含多少个字符类型的列，默认1 --number-int-cols=N, -y N 自动生成的测试表中包含多少个数字类型的列，默认1 --commint=N 多少条DML后提交一次。 --compress, -C 如果服务器和客户端支持都压缩，则压缩信息传递。 --only-print 只打印测试语句而不实际执行。 --detach=N 执行N条语句后断开重连。 --debug-info, -T 打印内存和CPU的相关信息。 The MYSQLSLAP operation has the following 3 steps:
1. Create schema, table, test data, etc. (in MySQL, the schema is database);
2. Run the load test, you can use multiple concurrent client connections;
3. Test environment Cleanup (delete created data, tables, etc.). Case:

[Email protected] ~]# mysqlslap-a--concurrency=50,100--number-of-queries 1000-- Auto-generate-sql-add-autoincrement--number-char-cols=10--number-int-cols=5-poracle
Warning:using a password on the command line interface can is insecure.
Benchmark
Average number of seconds to run all queries:0.775 seconds
Minimum number of seconds to run all queries:0.775 seconds
Maximum number of seconds to run all queries:0.775 seconds
Number of clients running QUERIES:50
Average number of queries per client:20

Benchmark
Average number of seconds to run all queries:0.984 seconds
Minimum number of seconds to run all queries:0.984 seconds
Maximum number of seconds to run all queries:0.984 seconds
Number of clients running queries:100
Average number of queries per Client:10

[Email protected] ~]# mysqlslap-a--concurrency=50,100--number-of-queries 1000-- Auto-generate-sql-add-autoincrement--number-char-cols=10--number-int-cols=5--engine=myisam,innodb-poracle
Warning:using a password on the command line interface can is insecure.
Benchmark
Running for Engine MyISAM
Average number of seconds to run all queries:0.117 seconds
Minimum number of seconds to run all queries:0.117 seconds
Maximum number of seconds to run all queries:0.117 seconds
Number of clients running QUERIES:50
Average number of queries per client:20

Benchmark
Running for Engine MyISAM
Average number of seconds to run all queries:0.129 seconds
Minimum number of seconds to run all queries:0.129 seconds
Maximum number of seconds to run all queries:0.129 seconds
Number of clients running queries:100
Average number of queries per Client:10

Benchmark
Running for Engine InnoDB
Average number of seconds to run all queries:1.665 seconds
Minimum number of seconds to run all queries:1.665 seconds
Maximum number of seconds to run all queries:1.665 seconds
Number of clients running QUERIES:50
Average number of queries per client:20

Benchmark
Running for Engine InnoDB
Average number of seconds to run all queries:1.480 seconds
Minimum number of seconds to run all queries:1.480 seconds
Maximum number of seconds to run all queries:1.480 seconds
Number of clients running queries:100
Average number of queries per Client:10

MySQL MySQL database stress test tool (MYSQLSLAP)