mysql压力测试工具：mysqlslap

引用http://bbs.yahunet.com/thread-10194-1-2.html

mysql
slap是一个mysql
官方提供的压力测试工具
。以下是比较重要的参数：

–defaults-file，配置文件
存放位置

–concurrency，并发数

–engines，引擎

–iterations，迭代的实验次数

–socket，socket文件位置

自动测试：

–auto-generate-sql，自动产生测试SQL

–auto-generate-sql-load-type，测试SQL的类型。类型有mixed，update，write，key，read。

–number-of-queries，执行的SQL总数量

–number-int-cols，表内int列的数量

–number-char-cols，表内char列的数量

例如：

shell>mysqlslap –defaults-file=/u01/mysql1/mysql/my.cnf
–concurrency=50,100 –iterations=1 –number-int-cols=4 –auto-generate-sql
–auto-generate-sql-load-type=write –engine=myisam
–number-of-queries=200 -S/tmp/mysql1.sock

Benchmark

Running for engine myisam

Average number of seconds to run all queries: 0.016 seconds

Minimum number of seconds to run all queries: 0.016 seconds

Maximum number of seconds to run all queries: 0.016 seconds

Number of clients running queries: 50

Average number of queries per client: 4

Benchmark

Running for engine myisam

Average number of seconds to run all queries: 0.265 seconds

Minimum number of seconds to run all queries: 0.265 seconds

Maximum number of seconds to run all queries: 0.265 seconds

Number of clients running queries: 100

Average number of queries per client: 2

指定数据库
的测试：

–create-schema，指定数据
库名称

–query，指定SQL语句，可以定位到某个包含SQL的文件

例如：

shell>mysqlslap –defaults-file=/u01/mysql1/mysql/my.cnf
–concurrency=25,50 –iterations=1 –create-schema=test
–query=/u01/test.sql -S/tmp/mysql1.sock

Benchmark

Average number of seconds to run all queries: 0.018 seconds

Minimum number of seconds to run all queries: 0.018 seconds

Maximum number of seconds to run all queries: 0.018 seconds

Number of clients running queries: 25

Average number of queries per client: 1

Benchmark

Average number of seconds to run all queries: 0.011 seconds

Minimum number of seconds to run all queries: 0.011 seconds

Maximum number of seconds to run all queries: 0.011 seconds

Number of clients running queries: 50

Average number of queries per client: 1