MySQL性能测试工具之mysqlslap使用详解

梦里梦外; 2022-02-21 06:27 176阅读 0赞

# [MySQL性能测试工具之mysqlslap使用详解][MySQL_mysqlslap] #

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  
**\#mysqlslap -h127.0.0.1 -uroot -p123456789 --concurrency=100 --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: 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=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

[MySQL_mysqlslap]: https://www.cnblogs.com/fjping0606/p/5853325.html