Mysql：mysqlslap：应用案例：持续补充 ...

案例1：测试服务器可支撑的简单连接数上限是多少 

你可以不断调整 -c参数，注意执行总测试数--number-of-queries必须要大于等于-c的并发线程数量

[mysql@6CU3515V29 ~]$ mysqlslap -h10.1.101.3 -uroot -proot -e innodb -c50 --create-schema=test --no-drop --query='select sleep(3)' --number-of-queries=501
mysqlslap: [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: 30.009 seconds
    Minimum number of seconds to run all queries: 30.009 seconds
    Maximum number of seconds to run all queries: 30.009 seconds
    Number of clients running queries: 50
    Average number of queries per client: 10

[mysql@6CU3515V29 ~]$ 

案例2：测试服务器写入能力——即全部insert能力 

你可以不断调整 -c参数，--auto-generate-sql-load-type=write，则mysqlslap会以多线程方式全力insert数据！

[mysql@6CU3515V29 ~]$ mysqlslap -h10.1.101.3 -uroot -proot -e innodb -c50 -a -x15 -y15 --auto-generate-sql-guid-primary --auto-generate-sql-secondary-indexes=0 --auto-generate-sql-write-number=1 --auto-generate-sql-load-type=write --auto-generate-sql-execute-number=1000  --auto-generate-sql-unique-write-number=1000 --auto-generate-sql-unique-query-number=100 --no-drop
mysqlslap: [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: 2.527 seconds
    Minimum number of seconds to run all queries: 2.527 seconds
    Maximum number of seconds to run all queries: 2.527 seconds
    Number of clients running queries: 50
    Average number of queries per client: 1000

[mysql@6CU3515V29 ~]$ 

案例3：测试服务器读（全表读、随机id读）能力——即全部select能力

你可以不断调整 -c参数，--auto-generate-sql-load-type=key，则mysqlslap会以多线程方式全力insert数据！

注意：--auto-generate-sql-load-type=read 是个垃圾的参数，因为它是不带任何条件的全表select，实际没有意义，测试结果也没多大意义

[mysql@6CU3515V29 ~]$ mysqlslap -h10.1.101.3 -uroot -proot -e innodb -c100 -a --auto-generate-sql-write-number=55555  --auto-generate-sql-guid-primary   --auto-generate-sql-load-type=key  --auto-generate-sql-execute-number=333333
mysqlslap: [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: 145.053 seconds
    Minimum number of seconds to run all queries: 145.053 seconds
    Maximum number of seconds to run all queries: 145.053 seconds
    Number of clients running queries: 100
    Average number of queries per client: 333333

[mysql@6CU3515V29 ~]$ 

--no-drop