mysqlslap_MySQL性能测试工具之mysqlslap使用详解

mysqlslap是mysql自带的基准测试工具&＃xff0c;优点:查询数据,语法简单,灵活容易使用.该工具可以模拟多个客户端同时并发的向服务器发出查询更新,给出了性能测试数据而且提供了多种引擎的性能比较.msqlslap为mysql性能优化前后提供了直观的验证依据,建议系统运维和DBA人员应该掌握一些常见的压力测试工具,才能准确的掌握线上数据库支撑的用户流量上限及其抗压性等问题。

常用的选项

--concurrency　　　　并发数量,多个可以用逗号隔开

--engines　　　　　　要测试的引擎&＃xff0c;可以有多个&＃xff0c;用分隔符隔开&＃xff0c;如--engines&＃61;myisam,innodb

--iterations　　　　　要运行这些测试多少次

--auto-generate-sql　　　　　　　　用系统自己生成的SQL脚本来测试

--auto-generate-sql-load-type　　  要测试的是读还是写还是两者混合的(read,write,update,mixed)

--number-of-queries　　　　　　    总共要运行多少次查询。每个客户运行的查询数量可以用查询总数/并发数来计算

--debug-info　　　　　　　　　　    额外输出CPU以及内存的相关信息

--number-int-cols　　　　　　　    创建测试表的int型字段数量

--number-char-cols　　　　　　       创建测试表的chat型字段数量

--create-schema　　　　　　　　    测试的database

--query自己的SQL　　　　　　　　   脚本执行测试

--only-print　　　　　　　　　　      如果只想打印看看SQL语句是什么&＃xff0c;可以用这个选项

各种测试参数实例(-p后面跟的是mysql的root密码)&＃xff1a;

单线程测试。测试做了什么。

# mysqlslap -a -uroot -p123456

多线程测试。使用–concurrency来模拟并发连接。

# mysqlslap -a -c 100 -uroot -p123456

迭代测试。用于需要多次执行测试得到平均值。

# mysqlslap -a -i 10 -uroot -p123456

# mysqlslap ---auto-generate-sql-add-autoincrement -a -uroot -p123456

# mysqlslap -a --auto-generate-sql-load-type&＃61;read -uroot -p123456

# mysqlslap -a --auto-generate-secondary-indexes&＃61;3 -uroot -p123456

# mysqlslap -a --auto-generate-sql-write-number&＃61;1000 -uroot -p123456

# mysqlslap --create-schema world -q "select count(*) from City" -uroot -p123456

# mysqlslap -a -e innodb -uroot -p123456

# mysqlslap -a --number-of-queries&＃61;10 -uroot -p123456

测试同时不同的存储引擎的性能进行对比&＃xff1a;

# mysqlslap -a --concurrency&＃61;50,100 --number-of-queries 1000 --iterations&＃61;5 --engine&＃61;myisam,innodb --debug-info -uroot -p123456

执行一次测试&＃xff0c;分别50和100个并发&＃xff0c;执行1000次总查询&＃xff1a;

# mysqlslap -a --concurrency&＃61;50,100 --number-of-queries 1000 --debug-info -uroot -p123456

50和100个并发分别得到一次测试结果(Benchmark)&＃xff0c;并发数越多&＃xff0c;执行完所有查询的时间越长。为了准确起见&＃xff0c;可以多迭代测试几次:

# mysqlslap -a --concurrency&＃61;50,100 --number-of-queries 1000 --iterations&＃61;5 --debug-info -uroot -p123456

实例1

说明:测试100个并发线程&＃xff0c;测试次数1次&＃xff0c;自动生成SQL测试脚本&＃xff0c;读、写、更新混合测试&＃xff0c;自增长字段&＃xff0c;测试引擎为innodb&＃xff0c;共运行5000次查询

#mysqlslap -h127.0.0.1 -uroot -p123456789 --concurrency&＃61;100 --iterations&＃61;1 --auto-generate-sql --auto-generate-sql-load-type&＃61;mixed --auto-generate-sql-add-autoincrement --engine&＃61;innodb --number-of-queries&＃61;5000

Benchmark

Running for engine innodb

Average number of seconds to run all queries: 0.351 seconds　　　　100个客户端(并发)同时运行这些SQL语句平均要花0.351秒

Minimum number of seconds to run all queries: 0.351 seconds

Maximum number of seconds to run all queries: 0.351 seconds

Number of clients running queries: 100　　　　　　　　　　　　  总共100个客户端(并发)运行这些sql查询

Average number of queries per client:50　　　　　　　　　　　　每个客户端(并发)平均运行50次查询(对应--concurrency&＃61;100&＃xff0c;--number-of-queries&＃61;5000&＃xff1b;5000/100&＃61;50)

实例2

#mysqlslap -h127.0.0.1 -uroot -p123456789 --concurrency&＃61;100,500,1000 --iterations&＃61;1 --auto-generate-sql --auto-generate-sql-load-type&＃61;mixed --auto-generate-sql-add-autoincrement --engine&＃61;innodb --number-of-queries&＃61;5000 --debug-info

Benchmark

Running for engine innodb

Average number of seconds to run all queries: 0.328 seconds

Minimum number of seconds to run all queries: 0.328 seconds

Maximum number of seconds to run all queries: 0.328 seconds

Number of clients running queries: 100

Average number of queries per client: 50

Benchmark

Running for engine innodb

Average number of seconds to run all queries: 0.358 seconds

Minimum number of seconds to run all queries: 0.358 seconds

Maximum number of seconds to run all queries: 0.358 seconds

Number of clients running queries: 500

Average number of queries per client: 10

Benchmark

Running for engine innodb

Average number of seconds to run all queries: 0.482 seconds

Minimum number of seconds to run all queries: 0.482 seconds

Maximum number of seconds to run all queries: 0.482 seconds

Number of clients running queries: 1000

Average number of queries per client: 5

User time 0.21, System time 0.78

Maximum resident set size 21520, Integral resident set size 0

Non-physical pagefaults 12332, Physical pagefaults 0, Swaps 0

Blocks in 0 out 0, Messages in 0 out 0, Signals 0

Voluntary context switches 36771, Involuntary context switches 1396

实例3(自定义sql语句)

#mysqlslap -h127.0.0.1 -uroot -p123456789 --concurrency&＃61;100 --iterations&＃61;1 --create-schema&＃61;rudao --query&＃61;&＃39;select * from serverlist;&＃39; --engine&＃61;innodb --number-of-queries&＃61;5000 --debug-info

Benchmark

Running for engine innodb

Average number of seconds to run all queries: 0.144 seconds

Minimum number of seconds to run all queries: 0.144 seconds

Maximum number of seconds to run all queries: 0.144 seconds

Number of clients running queries: 100

Average number of queries per client: 50

User time 0.05, System time 0.09

Maximum resident set size 6132, Integral resident set size 0

Non-physical pagefaults 2078, Physical pagefaults 0, Swaps 0

Blocks in 0 out 0, Messages in 0 out 0, Signals 0

Voluntary context switches 6051, Involuntary context switches 90

实例4(指定sql脚本)

#mysqlslap -h127.0.0.1 -uroot -p123456789 --concurrency&＃61;100 --iterations&＃61;1 --create-schema&＃61;rudao --query&＃61;/tmp/query.sql --engine&＃61;innodb --number-of-queries&＃61;5000 --debug-info

Warning: Using a password on the command line interface can be insecure.

Benchmark

Running for engine innodb

Average number of seconds to run all queries: 0.157 seconds

Minimum number of seconds to run all queries: 0.157 seconds

Maximum number of seconds to run all queries: 0.157 seconds

Number of clients running queries: 100

Average number of queries per client: 50

User time 0.07, System time 0.08

Maximum resident set size 6152, Integral resident set size 0

Non-physical pagefaults 2107, Physical pagefaults 0, Swaps 0

Blocks in 0 out 0, Messages in 0 out 0, Signals 0

Voluntary context switches 6076, Involuntary context switches 89