MySQL数据库测试

　　首先需要创建默认的sbtest数据库，或者使用-mysql-db指定一个已经存在的数据库

　　生成测试数据，引擎为myisam，表大小为1000000条记录
以下是引用片段：
NinGoo:/u01/sysbench/bin>$sysbench --test=oltp --mysql-table-engine=myisam --oltp-table-size=1000000
--mysql-user=root --mysql-socket=/opt/mysql/run/mysql.sock prepare
sysbench 0.4.12:  multi-threaded system evaluation benchmark

No DB drivers specified， using mysql
Creating table ’sbtest’...
Creating 1000000 records in table ’sbtest’...

root@sbtest 11:42:18>desc sbtest.sbtest;
+-------+------------------+------+-----+---------+----------------+
| Field | Type             | Null | Key | Default | Extra          |
+-------+------------------+------+-----+---------+----------------+
| id    | int(10) unsigned | NO   | PRI | NULL    | auto_increment |
| k     | int(10) unsigned | NO   | MUL | 0       |                |
| c     | char(120)        | NO   |     |         |                |
| pad   | char(60)         | NO   |     |         |                |
+-------+------------------+------+-----+---------+----------------+

　　执行测试
以下是引用片段：
NinGoo:/u01/sysbench/bin>$sysbench --test=oltp --mysql-table-engine=myisam --oltp-table-size=1000000
--mysql-user=root --mysql-socket=/opt/mysql/run/mysql.sock run
sysbench 0.4.12:  multi-threaded system evaluation benchmark

No DB drivers specified， using mysql
Running the test with following options:
Number of threads: 1

Doing OLTP test.
Running mixed OLTP test
Using Special distribution (12 iterations，  1 pct of values are returned in 75 pct cases)
Using "LOCK TABLES WRITE" for starting transactions
Using auto_inc on the id column
Maximum number of requests for OLTP test is limited to 10000
Threads started!
Done.

OLTP test statistics:
    queries performed:
        read:                            140000
        write:                           50000
        other:                           20000
        total:                           210000
    transactions:                        10000  (336.64 per sec.)
    deadlocks:                           0      (0.00 per sec.)
    read/write requests:                 190000 (6396.11 per sec.)
    other operations:                    20000  (673.27 per sec.)

Test execution summary:
    total time:                          29.7056s
    total number of events:              10000
    total time taken by event execution: 29.6301
    per-request statistics:
         min:                                  2.27ms
         avg:                                  2.96ms
         max:                                 43.88ms
         approx.  95 percentile:               3.36ms

Threads fairness:
    events (avg/stddev):           10000.0000/0.00
    execution time (avg/stddev):   29.6301/0.00