sysbench基准测试工具使用

1、源码编译安装

源码下载地址(目前有0.4/0.5/1.0三个分支版本):https://github.com/akopytov/sysbench

编译安装:

unzip sysbench-1.0.zip
//进入目录,配置编译安装
./autogen.sh
./configure --with-mysql-includes=/usr/local/mysql/include/ --with-mysql-libs=/usr/local/mysql/lib/ --prefix=/usr/local/sysbench/v1.0
make
make install
//配置环境变量
//...

可能遇到的问题

编译安装完成以后,执行sysbench命令,会报如下错误:

sysbench: error while loading shared libraries: libmysqlclient.so.20: cannot open shared object file: No such file or directory

问题原因,没有正确配置环境变量LD_LIBRARY_PATH,执行如下命令(我的MySQL采用源码安装方式,目录在/usr/local/mysql,所以头文件与库文件都在该目录下):

export LD_LIBRARY_PATH=/usr/local/mysql/lib/

2、执行sysbench命令,打印出帮助信息如下:

Missing required command argument.
Usage:
sysbench --test=<test-name> [options]... <command>

Commands: prepare run cleanup help version     //Usage中的<command>部分,分别表示“准备”、“运行”、“清理”、“帮助”、“版本”

General options:           //通用选项,用于设置线程数量,请求数目等多种测试属性
--num-threads=N number of threads to use [1]
--max-requests=N limit for total number of requests [10000]

//略...

General database options:      //通用的数据库选项,sysbench支持MySQL、Oracle等多种数据库测试

--db-driver=STRING specifies database driver to use ('help' to get list of available drivers)  指定测试用的数据库驱动
--db-ps-mode=STRING prepared statements usage mode {auto, disable} [auto]
--db-debug=[on|off] print database-specific debug information [off]  数据库调试信息是否打开

Compiled-in database drivers:    //内建的数据库驱动,对于MySQL数据库测试直接使用内建驱动就可以了
mysql - MySQL driver

mysql options:           //针对MySQL数据库测试的一些选项
--mysql-host=[LIST,...] MySQL server host [localhost] 主机IP地址
--mysql-port=[LIST,...] MySQL server port [3306] 主机端口号
--mysql-socket=[LIST,...] MySQL socket 采用的socket
--mysql-user=STRING MySQL user [sbtest] 用户名
--mysql-password=STRING MySQL password [] 密码
--mysql-db=STRING MySQL database name [sbtest] 测试目标数据库

//略...

Compiled-in tests: //内建的测试类型,如下5中测试直接在“--test=...”后面指定就可以了,如果内建测试不能满足需求可以采用lua脚本自定义测试
fileio - File I/O test  IO性能测试
cpu - CPU performance test  CPU性能测试
memory - Memory functions speed test  内存连续读写性能测试
threads - Threads subsystem performance test  线程调度器性能测试
mutex - Mutex performance test  互斥锁性能测试

3、内建测试1:fileio测试

①、准备测试数据集,使用prepare命令

[lj95801@localhost sysbench]$ sysbench --test=fileio --file-total-size=5G prepare 

--test=fileio  表示测试类型为内建的fileio测试

--test-total-size=5G  表示准备测试数据集为50G大小

prepare    命令准备测试数据集

输出结果如下:

sysbench 1.0: multi-threaded system evaluation benchmark

128 files, 40960Kb each, 5120Mb total
Creating files for the test...
Extra file open flags: 0
Creating file test_file.0
Creating file test_file.1
Creating file test_file.2

//...

从打印可以看出,程序会自动生成128个文件,每个文件4MB大小。

②、使用help命令,查看fileio测试的帮助文档:

[luojun@localhost sysbench]$ sysbench --test=fileio help

sysbench 1.0: multi-threaded system evaluation benchmark

fileio options:   //可用的选项
--file-num=N number of files to create [128]   //文件数量
--file-block-size=N block size to use in all IO operations [16384]  //文件块大小设定
--file-total-size=SIZE total size of files to create [2G]  //文件总大小
--file-test-mode=STRING test mode {seqwr, seqrewr, seqrd, rndrd, rndwr, rndrw}  //测试模式
--file-io-mode=STRING file operations mode {sync,async,mmap} [sync]  //io模式,“同步”、“异步”
--file-extra-flags=STRING additional flags to use on opening files {sync,dsync,direct} []
--file-fsync-freq=N do fsync() after this number of requests (0 - don't use fsync()) [100]  //fsync()方法调用频率
--file-fsync-all=[on|off] do fsync() after each write operation [off]  //每一次写操作都进行fsync()同步,默认为off
--file-fsync-end=[on|off] do fsync() at the end of test [on]  //在测试结束之前调用fsync()同步方法
--file-fsync-mode=STRING which method to use for synchronization {fsync, fdatasync} [fsync]
--file-merged-requests=N merge at most this number of IO requests if possible (0 - don't merge) [0]
--file-rw-ratio=N reads/writes ratio for combined test [1.5]  //读写比率设定

有一个重要的测试选项:--file-test-mode=STRING。其可用的选项为:

seqwr:顺序写

seqrewr:顺序重写

seqrd:顺序读

rndrd:随机读取

rndwr:随机写入

rndrw:混合随机读/写

③、作混合随机读写测试:

[luojun@localhost sysbench]$ sysbench --test=fileio --file-test-mode=rndrw --file-total-size=5G --file-rw-ratio=2 run 

选项解释:

--test-fileio:测试类型为IO测试

--file-total-size=5G:测试文件总大小为5G

--file-test-mode=rndrw:文件IO测试模式为随机混合读写方式

--file-rw-ratio=2:读写次数比率为2

④、分析打印结果

sysbench 1.0:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 1    //测试线程数
Initializing random number generator from current time

//测试属性设定,可以通过选项控制
Extra file open flags: 0
128 files, 40MiB each
5GiB total file size
Block size 16KiB
Number of IO requests: 10000
Read/Write ratio for combined random IO test: 2.00
Periodic FSYNC enabled, calling fsync() each 100 requests.
Calling fsync() at the end of test, Enabled.
Using synchronous I/O mode
Doing random r/w test
Initializing worker threads...

Threads started!

//测试过程中文件操作情况
File operations:
    reads/s:                      95.45  //每秒钟读请求数
    writes/s:                     47.72  //每秒钟写请求数
    fsyncs/s:                     183.25  //没表中同步次数

//吞吐率
Throughput:
    read, MiB/s:                  1.49  //读,1.49MB每秒
    written, MiB/s:               0.75  //写,0.75MB每秒

//统计数据
General statistics:
    total time:                          69.8488s    //测试总时长
    total number of events:              10000     //事件数量
    total time taken by event execution: 39.6674s   //事件执行事件
    response time: //事件响应事件统计
         min:                                  0.02ms   //最短
         avg:                                  3.97ms   //平均
         max:                                 27.70ms   //最长
         approx.  95 percentile:              11.77ms   //95%以上事件响应时长

Threads fairness:  //线程公平性统计信息
    events (avg/stddev):           10000.0000/0.00
    execution time (avg/stddev):   39.6674/0.00

与文件IO性能评价密切相关的指标有:每秒钟请求数、吞吐量、95%以上事件响应时间。

⑤、清除测试数据集

[luojun@localhost sysbench]$ sysbench --test=fileio --file-total-size=5G cleanup

 参考文章:

http://beagoodboy.iteye.com/blog/1280907

《高性能MySQL》第三版

原文地址:https://www.cnblogs.com/lj95801/p/5942841.html