mysqlslap是从MySQL的5.1.4版开始就开始官方提供的压力测试工具。通过模拟多个并发客户端并发访问MySQL来执行压力测试，同时提供了较详细的SQL执行数据性能报告，并且能很好的对比多个存储引擎（MyISAM，InnoDB等）在相同环境下的相同并发压力下的性能差别。
mysqlslap官方文档： https://dev.mysql.com/doc/refman/5.6/en/mysqlslap.html
Table 4.14 mysqlslap Options
| Format | Description | Introduced |
|---|---|---|
| Generate SQL statements automatically when they are not supplied in files or using command options | ||
| Add AUTO_INCREMENT column to automatically generated tables | ||
| Specify how many queries to generate automatically | ||
| Add a GUID-based primary key to automatically generated tables | ||
| Specify the test load type | ||
| Specify how many secondary indexes to add to automatically generated tables | ||
| How many different queries to generate for automatic tests. | ||
| How many different queries to generate for --auto-generate-sql-write-number | ||
| How many row inserts to perform on each thread | ||
| How many statements to execute before committing. | ||
| Compress all information sent between client and server | ||
| Number of clients to simulate when issuing the SELECT statement | ||
| File or string containing the statement to use for creating the table | ||
| Schema in which to run the tests | ||
| Generate output in comma-separated values format | ||
| Write debugging log | ||
| Print debugging information when program exits | ||
| Print debugging information, memory, and CPU statistics when program exits | ||
| Authentication plugin to use | 5.6.2 | |
| Read named option file in addition to usual option files | ||
| Read only named option file | ||
| Option group suffix value | ||
| Delimiter to use in SQL statements | ||
| Detach (close and reopen) each connection after each N statements | ||
| Enable cleartext authentication plugin | 5.6.7 | |
| Storage engine to use for creating the table | ||
| Display help message and exit | ||
| Connect to MySQL server on given host | ||
| Number of times to run the tests | ||
| Read login path options from .mylogin.cnf | 5.6.6 | |
| Read no option files | ||
| Do not drop any schema created during the test run | 5.6.3 | |
| Number of VARCHAR columns to use if --auto-generate-sql is specified | ||
| Number of INT columns to use if --auto-generate-sql is specified | ||
| Limit each client to approximately this number of queries | ||
| Do not connect to databases. mysqlslap only prints what it would have done | ||
| Password to use when connecting to server | ||
| On Windows, connect to server using named pipe | ||
| Directory where plugins are installed | 5.6.2 | |
| TCP/IP port number to use for connection | ||
| File or string containing the statement to execute after the tests have completed | ||
| String to execute using system() after the tests have completed | ||
| File or string containing the statement to execute before running the tests | ||
| String to execute using system() before running the tests | ||
| Print default options | ||
| Connection protocol to use | ||
| File or string containing the SELECT statement to use for retrieving data | ||
| Do not send passwords to server in old (pre-4.1) format | 5.6.17 | |
| The name of shared memory to use for shared-memory connections | ||
| Silent mode | ||
| For connections to localhost, the Unix socket file to use | ||
| Enable secure connection | ||
| Path of file that contains list of trusted SSL CAs | ||
| Path of directory that contains trusted SSL CA certificates in PEM format | ||
| Path of file that contains X509 certificate in PEM format | ||
| List of permitted ciphers to use for connection encryption | ||
| Path of file that contains certificate revocation lists | 5.6.3 | |
| Path of directory that contains certificate revocation list files | 5.6.3 | |
| Path of file that contains X509 key in PEM format | ||
| Security state of connection to server | 5.6.30 | |
| Verify server certificate Common Name value against host name used when connecting to server | ||
| MySQL user name to use when connecting to server | ||
| Verbose mode | ||
| Display version information and exit |
参数参考表：--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。
1. 创建schema、table、test data 等 （在MySQL中，schema就是database）；
2. 运行负载测试，可以使用多个并发客户端连接；
3. 测试环境清理（删除创建的数据、表等）。
[root@mysql ~]# 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 be 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
[root@mysql ~]# 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 be 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