sysbench基准测试工具使用
2016-10-09 16:41 宏愿。 阅读(2941) 评论(0) 编辑 收藏 举报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