MySQL基准测试工具-mysqlslap

mysqlslap是MySQL5.1之后自带的benchmark基准测试工具,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

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使用自定义脚本进行测试，虚拟主机， 可以是一个存储过程或者SQL语句来执行；

--only-print 只打印测试过程中涉及到的SQL语句，不真正的执行；

举例：

测试200个并发写入性能，测试20次，香港虚拟主机，自动生成SQL脚本，测试表包含35个int字段，香港虚拟主机，20个char字段，测试引擎分别为innodb，myisam；每次执行3000个query；

./bin/mysqlslap --socket=/usr/local/mysql/mysql.sock --port=3306 --concurrency=200 --iterations=20 --auto-generate-sql --auto-generate-sql-load-type=write --auto-generate-sql-add-autoincrement --number-int-cols=35 --number-char-cols=20 --engine=innodb,myisam --create-schema=sysbench --number-of-queries=3000 --debug-info

结果为：

Benchmark Running for engine innodb Average number of seconds to run all queries: 6.385 seconds Minimum number of seconds to run all queries: 3.021 seconds Maximum number of seconds to run all queries: 12.969 seconds Number of clients running queries: 200 Average number of queries per client: 15 Benchmark Running for engine myisam Average number of seconds to run all queries: 0.621 seconds Minimum number of seconds to run all queries: 0.442 seconds Maximum number of seconds to run all queries: 1.134 seconds Number of clients running queries: 200 Average number of queries per client: 15 User time 0.66, System time 1.97 Maximum resident set size 10060, Integral resident set size 0 Non-physical pagefaults 50486, Physical pagefaults 5, Swaps 0 Blocks in 584 out 96, Messages in 0 out 0, Signals 0 Voluntary context switches 298373, Involuntary context switches 1469

自定义SQL测试脚本：

mysqlslap --create=/yourpath/test.sql --query=/yourpath/test1.sql --concurrency=50,100,200 --iterations=20 --engine=myisam,innodb

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