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MySQL性能测试工具之mysqlslap使用详解

MySQL性能测试工具之mysqlslap使用详解

作者: boyiis | 来源:发表于2018-10-31 12:26 被阅读0次

    mysqlslap是mysql自带的基准测试工具,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,可以有多个,用分隔符隔开,如--engines=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,可以用这个选项

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

    D:\mysql-8.0.11-winx64\bin>mysqlslap -h127.0.0.1 -uroot -p123456 --concurrency=1
    00 --iterations=1 --auto-generate-sql --auto-generate-sql-load-type=mixed --auto
    -generate-sql-add-autoincrement --engine=innodb --number-of-queries=5000
    
    Benchmark
            Running for engine innodb
            Average number of seconds to run all queries: 9.898 seconds        100个客户端(并发)同时运行这些SQL语句平均要花9.898秒
            Minimum number of seconds to run all queries: 9.898 seconds
            Maximum number of seconds to run all queries: 9.898 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=100,--number-of-queries=5000;5000/100=50)
    

    实例2

    mysqlslap -h127.0.0.1 -uroot -p123456789 --concurrency=100,500,1000 --iterations=1 --auto-generate-sql --auto-generate-sql-load-type=mixed --auto-generate-sql-add-autoincrement --engine=innodb --number-of-queries=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=100 --iterations=1 --create-schema=rudao --query='select * from serverlist;' --engine=innodb --number-of-queries=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=100 --iterations=1 --create-schema=rudao --query=/tmp/query.sql --engine=innodb --number-of-queries=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
    ```     

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