4.5.7. mysqlslap — Load Emulation Client

--help, -?

Display a help message and exit.

--auto-generate-sql, -a

Generate SQL statements automatically when they are not supplied in files or using command options.

--auto-generate-sql-add-autoincrement

Add an AUTO_INCREMENT column to automatically generated tables.

--auto-generate-sql-execute-number=N

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=type

Specify the test load type. The permissible values are read (scan tables), write (insert into tables), key (read primary keys), update (update primary keys), or mixed (half inserts, half scanning selects). The default is mixed.

--auto-generate-sql-secondary-indexes=N

Specify how many secondary indexes to add to automatically generated tables. By default, none are added.

--auto-generate-sql-unique-query-number=N

How many different queries to generate for automatic tests. For example, if you run a key test that performs 1000 selects, you can use this option with a value of 1000 to run 1000 unique queries, or with a value of 50 to perform 50 different selects. The default is 10.

--auto-generate-sql-unique-write-number=N

How many different queries to generate for --auto-generate-sql-write-number. The default is 10.

--auto-generate-sql-write-number=N

How many row inserts to perform on each thread. The default is 100.

--commit=N

How many statements to execute before committing. The default is 0 (no commits are done).

--compress, -C

Compress all information sent between the client and the server if both support compression.

--concurrency=N, -c N

The number of clients to simulate when issuing the SELECT statement.

--create=value

The file or string containing the statement to use for creating the table.

--create-schema=value

The schema in which to run the tests.

--csv[=file_name]

Generate output in comma-separated values format. The output goes to the named file, or to the standard output if no file is given.

--debug[=debug_options], -# [debug_options]

Write a debugging log. A typical debug_options string is 'd:t:o,file_name'. The default is 'd:t:o,/tmp/mysqlslap.trace'.

--debug-check

Print some debugging information when the program exits.

--debug-info, -T

Print debugging information and memory and CPU usage statistics when the program exits.

--default-auth=plugin

The client-side authentication plugin to use. See Section 6.3.7, "Pluggable Authentication".

This option was added in MySQL 5.6.2.

--delimiter=str, -F str

The delimiter to use in SQL statements supplied in files or using command options.

--detach=N

Detach (close and reopen) each connection after each N statements. The default is 0 (connections are not detached).

--enable-cleartext-plugin

Enable the mysql_clear_password cleartext authentication plugin. (See Section 6.3.7.5, "The Cleartext Client-Side Authentication Plugin".) This option was added in MySQL 5.6.7.

--engine=engine_name, -e engine_name

The storage engine to use for creating tables.

--host=host_name, -h host_name

Connect to the MySQL server on the given host.

--iterations=N, -i N

The number of times to run the tests.

--no-drop

Prevent mysqlslap from dropping any schema it creates during the test run. This option was added in MySQL 5.6.3.

--number-char-cols=N, -x N

The number of VARCHAR columns to use if --auto-generate-sql is specified.

--number-int-cols=N, -y N

The number of INT columns to use if --auto-generate-sql is specified.

--number-of-queries=N

Limit each client to approximately this many queries. Query counting takes into account the statement delimiter. For example, if you invoke mysqlslap as follows, the ; delimiter is recognized so that each instance of the query string counts as two queries. As a result, 5 rows (not 10) are inserted.

shell> mysqlslap --delimiter=";"
                    --number-of-queries=10         --query="use
                    test;insert into t values(null)"

--only-print

Do not connect to databases. mysqlslap only prints what it would have done.

--password[=password], -p[password]

The password to use when connecting to the server. If you use the short option form (-p), you cannot have a space between the option and the password. If you omit the password value following the --password or -p option on the command line, mysqlslap prompts for one.

Specifying a password on the command line should be considered insecure. See Section 6.1.2.1, "End-User Guidelines for Password Security". You can use an option file to avoid giving the password on the command line.

--pipe, -W

On Windows, connect to the server using a named pipe. This option applies only if the server supports named-pipe connections.

--plugin-dir=path

The directory in which to look for plugins. It may be necessary to specify this option if the --default-auth option is used to specify an authentication plugin but mysqlslap does not find it. See Section 6.3.7, "Pluggable Authentication".

This option was added in MySQL 5.6.2.

--port=port_num, -P port_num

The TCP/IP port number to use for the connection.

--post-query=value

The file or string containing the statement to execute after the tests have completed. This execution is not counted for timing purposes.

--shared-memory-base-name=name

On Windows, the shared-memory name to use, for connections made using shared memory to a local server. This option applies only if the server supports shared-memory connections.

--post-system=str

The string to execute using system() after the tests have completed. This execution is not counted for timing purposes.

--pre-query=value

The file or string containing the statement to execute before running the tests. This execution is not counted for timing purposes.

--pre-system=str

The string to execute using system() before running the tests. This execution is not counted for timing purposes.

--protocol={TCP|SOCKET|PIPE|MEMORY}

The connection protocol to use for connecting to the server. It is useful when the other connection parameters normally would cause a protocol to be used other than the one you want. For details on the permissible values, see Section 4.2.2, "Connecting to the MySQL Server".

--query=value, -q value

The file or string containing the SELECT statement to use for retrieving data.

--silent, -s

Silent mode. No output.

--socket=path, -S path

For connections to localhost, the Unix socket file to use, or, on Windows, the name of the named pipe to use.

--ssl*

Options that begin with --ssl specify whether to connect to the server using SSL and indicate where to find SSL keys and certificates. See Section 6.3.9.4, "SSL Command Options".

--user=user_name, -u user_name

The MySQL user name to use when connecting to the server.

--verbose, -v

Verbose mode. Print more information about what the program does. This option can be used multiple times to increase the amount of information.

--version, -V

Display version information and exit.