sysbench压力测试工具简介和使用(二)

时间:2022-11-08 11:41:53

sysbench压力测试工具使用:

 

2.1    测试数据库服务器的硬件配置信息如下:

 

CPU:      24核心线程数,Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz

MEM:    64G,8*8G=64G

DISK:      15000转/秒

 

 

2.2    对磁盘IO性能的测试:

 

2.2.1 创建fileio文件

创建初始化fileio文件:

 

[root@db-master sysbench]# sysbench --test=fileio --file-num=16 --file-total-size=2G prepare

sysbench 0.4.12:  multi-threaded system evaluation benchmark

 

16 files, 131072Kb each, 2048Mb total

Creating files for the test...

sysbench压力测试工具简介和使用(二)

2.2.1 开始fileio测试

接下来开始对这些文件进行测试,使用16个线程随机读进行测试结果如下:

 

 

[root@db-master sysbench]# sysbench --test=fileio --file-total-size=2G --file-test-mode=rndrd --max-time=180 --max-requests=100000000 --num-threads=16 --init-rng=on --file-num=16 --file-extra-flags=direct --file-fsync-freq=0 --file-block-size=16384 run

 

 

 

 

 

sysbench压力测试工具简介和使用(二)

 

可以看到随机读取的性能为75.988Mb/sec,随机读的IOPS为4863.25 Requests/sec.说明服务器的硬件配置还不错。

 

 

 

2.2.3 测试完成执行cleanup

测试结束后,记得执行cleanup,以确保测试所产生的文件都已删除:

 

 

 

 

 

[root@db-master sysbench]# sysbench --test=fileio --file-num=16 --file-total-size=2G cleanup

 

sysbench 0.4.12:  multi-threaded system evaluation benchmark

 

Removing test files...

 

 

如果需要测试seqwr(顺序写), seqrewr(顺序读写), seqrd(顺序读), rndrd(随机读), rndwr(随机写), rndrw(随机读写)等6种模式,并且还可能需要测试不同的线程和不同的文件块下磁盘的性能表现,这时,可以使用如下脚本达到测试目的。

 

 

测试脚本内容如下:

 

#!/bin/bash

#==============================================================================

#

#          FILE: sysbench_auto.sh

#

#         USAGE: ./sysbench_auto.sh

#

#   DESCRIPTION: This file is sysbench_auto.sh 

#        AUTHOR: Kevin Lu (kevin), kevin@gmail.com

#  ORGANIZATION: cmcc

#       CREATED: 02/26/2014 17:35

#      REVISION: v1.0.1

#==============================================================================

 

for size in {8G,64G}

do

for mode in {seqwr,seqrewr,seqrd,rndrd,rndwr,rndrw}

do

for blksize in {4096,16384}

do

sysbench --test=fileio --file-num=64 --file-total-size=$size prepare

for threads in {1,4,8,16,32}

do

echo "=============testing $blksize in $threads threads"

echo PARAS $size $mode $threads $blksize > sysbench-size-$size-mode-$mode-threads-$threads-blksz-$blksize

for i in {1,2,3}

do

sysbench --test=fileio --file-total-size=$size --file-test-mode=$mode --max-time=180 --max-requests=100000 --num-threads=$threads --

init-rng=on --file-num=64 --file-extra-flags=direct --file-fsync-freq=0 --file-block-size=$blksize run|tee -a sysbench-size-$size-mo

de-$mode-threads-$threads-blksz-$blksize 2>&1

done

done

sysbench --test=fileio --file-total-size=$size cleanup

done

done

done

 

 

 

-- 脚本运行后,在当前目录下会生成如下文件:

 

sysbench压力测试工具简介和使用(二)

 

 

 

3.1 对mysql事务型OLTP的测试:

3.1.1 prepare准备阶段

对于mysqlOLTP测试,和file一样,同样需要经历prepare,run,cleanup三个阶段。prepare阶段会在数据库中产生一张指定行数的表,默认表在sbtest架构下,表名为

sbtest(sysbench默认生成表的存储引擎为innodb),如创建一张8000万条记录的表:

 

[root@db-master sysbench]# sysbench --test=oltp --oltp-table-size=80000000 --db-driver=mysql --mysql-socket=/data/mysqlsoft3307/mysql.sock --mysql-user=dba_manager  --mysql-password='111111' --mysql-db=test prepare

 

sysbench 0.4.12:  multi-threaded system evaluation benchmark

 

Creating table 'sbtest'...

Creating 10 records in table 'sbtest'...

 

 

3.1.2 run运行测试

接下来对上面产生的表进行oltp的测试:

 

[root@db-master sysbench]# sysbench --test=oltp --oltp-table-size=80000000 --oltp-read-only=off --init-rng=on --num-threads=16 --max-requests=0 --oltp-dist-type=uniform --max-time=3600 --mysql-user=dba_manager  --mysql-password='111111' --db-driver=mysql --mysql-socket=/data/mysqlsoft3307/mysql.sock run > result.log

 

参数说明:

 --max-time=3600 指定测试时长为1小时

 --mysql-db=test 指定测试的数据库名

 

[root@db-master sysbench]# cat  result.log 

sysbench 0.4.12:  multi-threaded system evaluation benchmark

 

Running the test with following options:

Number of threads: 16

Initializing random number generator from timer.

 

 

Doing OLTP test.

Running mixed OLTP test

Using Uniform distribution

Using "BEGIN" for starting transactions

Using auto_inc on the id column

Threads started!

Time limit exceeded, exiting...

(last message repeated 15 times)

Done.

 

OLTP test statistics:

    queries performed:

        read:                            137346874

        write:                           49052449

        other:                           19620980

        total:                           206020303

    transactions:                        9810489 (2725.13 per sec.)

    deadlocks:                           2      (0.00 per sec.)

    read/write requests:                 186399323 (51777.50 per sec.)

    other operations:                    19620980 (5450.26 per sec.)

 

Test execution summary:

    total time:                          3600.0060s

    total number of events:              9810489

    total time taken by event execution: 57542.1464

    per-request statistics:

         min:                                  3.00ms

         avg:                                  5.87ms

         max:                                212.09ms

         approx.  95 percentile:               8.44ms

 

Threads fairness:

    events (avg/stddev):           613155.5625/1486.47

    execution time (avg/stddev):   3596.3842/0.01

 

 

以上测试结果显示了很多操作的详细信息,transactions代表测试结果的评判标准即TPS,上述测试结果是 2725.13 per sec.

可以对数据库进行调优后,再使用sysbenchOLTP进行测试,看看TPS是不是会有所提高。

 

注意:sysbench的测试只是基准测试,并不能代表实际企业环境下的性能指标。

 http://blog.chinaunix.net/uid-7589639-id-4126046.html