比如对myisam引擎做并发量为100，查询次数为1000 --concurrency用于指定并发量，--number-of-queries=1000用于指定查询次数，--engine用于指定存储引擎 -a则是自动生成SQL（当未提供file或command时） [op@sAno1y ~]$ mysqlslap -a --concurrency=100 --number-of-queries=1000 --engine=myisam -uroot -proot 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: 0.167 seconds Minimum number of seconds to run all queries: 0.167 seconds Maximum number of seconds to run all queries: 0.167 seconds Number of clients running queries: 100 Average number of queries per client: 10 Benchmark Running for engine myisam Average number of seconds to run all queries: 0.170 seconds Minimum number of seconds to run all queries: 0.170 seconds Maximum number of seconds to run all queries: 0.170 seconds Number of clients running queries: 200 Average number of queries per client: 5
当然可以做迭代，在一次测试中输出： 其中--concurrency可以写作--concurrency=128,256,512诸如此类，而--engine也可以迭代写作--engine=innodb,myisam,memory等。 比如： 多加了的--debug-info参数可以使测试结果变得更加详尽。 [op@sAno1y ~]$ mysqlslap -a --concurrency=100,200 --iterations=1 --number-of-queries=1000 --engine=myisam,innodb,memory --debug-info -uroot -proot 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: 0.160 seconds Minimum number of seconds to run all queries: 0.160 seconds Maximum number of seconds to run all queries: 0.160 seconds Number of clients running queries: 100 Average number of queries per client: 10 Benchmark Running for engine myisam Average number of seconds to run all queries: 0.164 seconds Minimum number of seconds to run all queries: 0.164 seconds Maximum number of seconds to run all queries: 0.164 seconds Number of clients running queries: 200 Average number of queries per client: 5 Benchmark Running for engine innodb Average number of seconds to run all queries: 0.787 seconds Minimum number of seconds to run all queries: 0.787 seconds Maximum number of seconds to run all queries: 0.787 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: 1.154 seconds Minimum number of seconds to run all queries: 1.154 seconds Maximum number of seconds to run all queries: 1.154 seconds Number of clients running queries: 200 Average number of queries per client: 5 Benchmark Running for engine memory Average number of seconds to run all queries: 0.140 seconds Minimum number of seconds to run all queries: 0.140 seconds Maximum number of seconds to run all queries: 0.140 seconds Number of clients running queries: 100 Average number of queries per client: 10 Benchmark Running for engine memory Average number of seconds to run all queries: 0.159 seconds Minimum number of seconds to run all queries: 0.159 seconds Maximum number of seconds to run all queries: 0.159 seconds Number of clients running queries: 200 Average number of queries per client: 5 User time 0.23, System time 0.25 Maximum resident set size 12788, Integral resident set size 0 Non-physical pagefaults 11916, Physical pagefaults 0, Swaps 0 Blocks in 0 out 0, Messages in 0 out 0, Signals 0 Voluntary context switches 25055, Involuntary context switches 99 其中Average number of queries per client = number-of-queries / concurrency 即平均一个client的查询 = 总查询 ÷ 并发
mysqlslap Ver 1.0 Distrib 5.6.26, for Linux (x86_64) Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Run a query multiple times against the server. Usage: mysqlslap [OPTIONS] Default options are read from the following files in the given order: /etc/my.cnf /etc/mysql/my.cnf /home/op/softwares/mysql/etc/my.cnf ~/.my.cnf The following groups are read: mysqlslap client The following options may be given as the first argument: --print-defaults Print the program argument list and exit. --no-defaults Don't read default options from any option file, except for login file. --defaults-file=# Only read default options from the given file #. --defaults-extra-file=# Read this file after the global files are read. --defaults-group-suffix=# Also read groups with concat(group, suffix) --login-path=# Read this path from the login file. -?, --help Display this help and exit. -a, --auto-generate-sql Generate SQL where not supplied by file or command line. --auto-generate-sql-add-autoincrement Add an AUTO_INCREMENT column to auto-generated tables. --auto-generate-sql-execute-number=# Set this number to generate a set number of queries to run. --auto-generate-sql-guid-primary Add GUID based primary keys to auto-generated tables. --auto-generate-sql-load-type=name Specify test load type: mixed, update, write, key, or read; default is mixed. --auto-generate-sql-secondary-indexes=# Number of secondary indexes to add to auto-generated tables. --auto-generate-sql-unique-query-number=# Number of unique queries to generate for automatic tests. --auto-generate-sql-unique-write-number=# Number of unique queries to generate for auto-generate-sql-write-number. --auto-generate-sql-write-number=# Number of row inserts to perform for each thread (default is 100). --commit=# Commit records every X number of statements. -C, --compress Use compression in server/client protocol. -c, --concurrency=name Number of clients to simulate for query to run. --create=name File or string to use create tables. --create-schema=name Schema to run tests in. --csv[=name] Generate CSV output to named file or to stdout if no file is named. -#, --debug[=#] This is a non-debug version. Catch this and exit. --debug-check Check memory and open file usage at exit. -T, --debug-info Print some debug info at exit. --default-auth=name Default authentication client-side plugin to use. -F, --delimiter=name Delimiter to use in SQL statements supplied in file or command line. --detach=# Detach (close and reopen) connections after X number of requests. --enable-cleartext-plugin Enable/disable the clear text authentication plugin. -e, --engine=name Storage engine to use for creating the table. -h, --host=name Connect to host. -i, --iterations=# Number of times to run the tests. --no-drop Do not drop the schema after the test. -x, --number-char-cols=name Number of VARCHAR columns to create in table if specifying --auto-generate-sql. -y, --number-int-cols=name Number of INT columns to create in table if specifying --auto-generate-sql. --number-of-queries=# Limit each client to this number of queries (this is not exact). --only-print Do not connect to the databases, but instead print out what would have been done. -p, --password[=name] Password to use when connecting to server. If password is not given it's asked from the tty. --plugin-dir=name Directory for client-side plugins. -P, --port=# Port number to use for connection. --post-query=name Query to run or file containing query to execute after tests have completed. --post-system=name system() string to execute after tests have completed. --pre-query=name Query to run or file containing query to execute before running tests. --pre-system=name system() string to execute before running tests. --protocol=name The protocol to use for connection (tcp, socket, pipe, memory). -q, --query=name Query to run or file containing query to run. --secure-auth Refuse client connecting to server if it uses old (pre-4.1.1) protocol. (Defaults to on; use --skip-secure-auth to disable.) -s, --silent Run program in silent mode - no output. -S, --socket=name The socket file to use for connection. --ssl Enable SSL for connection (automatically enabled with other flags). --ssl-ca=name CA file in PEM format (check OpenSSL docs, implies --ssl). --ssl-capath=name CA directory (check OpenSSL docs, implies --ssl). --ssl-cert=name X509 cert in PEM format (implies --ssl). --ssl-cipher=name SSL cipher to use (implies --ssl). --ssl-key=name X509 key in PEM format (implies --ssl). --ssl-crl=name Certificate revocation list (implies --ssl). --ssl-crlpath=name Certificate revocation list path (implies --ssl). --ssl-verify-server-cert Verify server's "Common Name" in its cert against hostname used when connecting. This option is disabled by default. -u, --user=name User for login if not current user. -v, --verbose More verbose output; you can use this multiple times to get even more verbose output. -V, --version Output version information and exit.
