MySQLslap是官方的一款做压力测试的工具,可以模拟多个客户端进行并发测试。
比如可以模拟多少并发,执行多少次,针对某个存储引擎……等等
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
另外--auto-general-sql-load-type这个参数也可以选填,默认为mixed。
其他可选项为:update、write、key、read。
附录:
mysqlslap option:
- 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.
mysqlslap的缺点还是挺明显的,比如,不可以设置持续时间,比如24小时,表的数目不能指定等。
其最明显的优点是可以对不同的存储引擎做出对比。
网站标题:官方压测工具mysqlslap介绍及使用
地址分享:
http://njwzjz.com/article/ggpdip.html