sysbench是一个模块化、跨平台、多线程基准测试工具，主要用于测试不同系统参数下的数据库负载情况，本文主要介绍0.4版本的使用。sysbench主要用于以下性能测试：
- 文件I/O性能
- 调度
- 内存分配和传输
- POSIX线程
- 数据库
安装
下载地址：https://github.com/akopytov/sysbench/releases
1.安装插件
yum install libtool -y
2.安装
./configure --prefix=/usr/local/sysbench-0.4.12 --with-mysql-includes=/usr/local/mysql/include --with-mysql-libs=/usr/local/mysql/lib make make install cp -r sysbench/tests /usr/local/sysbench-0.4.12 ln -s /usr/local/sysbench-0.4.12/bin/sysbench /usr/local/sysbench-0.4.12/sysbench
修改环境变量，在环境变量中加入
export LD_LIBRARY_PATH=/usr/local/mysql/lib
注意：如果安装目录中没有configure那么需要执行以下操作：
chmod +x autogen.sh
./autogen.sh
如果想要让 sysbench 支持 oracle /pgsql 的话，就需要在编译的时候加上参数
--with-oracle
或者
--with-pgsql
一般语法
prepare:用于文件IO和数据库OLTP测试的数据准备阶段。
run:性能测试阶段
cleanup:移除测试过程中产生的数据
help:显示帮助信息，获取--test帮助可以使用--test=name --help
通用命令选项
这部分命令参数的通用的，不管--test测试什么内容都可以使用这些通用的命令。可以执行sysbench --help了解各参数的具体解释
General options: --num-threads=N number of threads to use [1] --max-requests=N limit for total number of requests [10000] --max-time=N limit for total execution time in seconds [0] --forced-shutdown=STRING amount of time to wait after --max-time before forcing shutdown [off] --thread-stack-size=SIZE size of stack per thread [32K] --init-rng=[on|off] initialize random number generator [off] --seed-rng=N seed for random number generator, ignored when 0 [0] --tx-rate=N target transaction rate (tps) [0] --tx-jitter=N target transaction variation, in microseconds [0] --report-interval=N periodically report intermediate statistics with a specified interval in seconds. 0 disables intermediate reports [0] --report-checkpoints=[LIST,...]dump full statistics and reset all counters at specified points in time. The argument is a list of comma-separated values representing the amount of time in seconds elapsed from start of test when report checkpoint(s) must be performed. Report checkpoints are off by default. [] --test=STRING test to run --debug=[on|off] print more debugging info [off] --validate=[on|off] perform validation checks where possible [off] --help=[on|off] print help and exit --version=[on|off] print version and exit Log options: --verbosity=N verbosity level {5 - debug, 0 - only critical messages} [4] --percentile=N percentile rank of query response times to count [95] Compiled-in tests: fileio - File I/O test cpu - CPU performance test memory - Memory functions speed test threads - Threads subsystem performance test mutex - Mutex performance test oltp - OLTP test Commands: prepare run cleanup help version See 'sysbench --test=<name> help' for a list of options for each test.
主要的参数有：
--num-threads、
--max-requests、
--test
以下几个参数也经常会使用：
--max-time 最大的测试时长
--debug(开启debug可以显示更详细的每个线程的执行情况)
CPU测试
对CPU的性能测试通常有：1. 通过算质数；2计算圆周率等；sysbench使用的就是通过质数相加的测试。对CPU测试直接运行run即可
./sysbench --num-threads=12 --max-requests=10000 --debug=on --test=cpu --cpu-max-prime=20000 run
上面的测试是：12个线程执行1万条请求，每个请求执行质数相加到20000
thread测试
测试线程调度的性能，用于高负载下的线程性能测试。
--thread-yields=N 每个请求执行“lock/yield/unlock”循环的次数，默认1000
--thread-locks=N 每个线程的互斥锁，默认8个
./sysbench --num-threads=12 --max-requests=10000 --test=threads --thread-yields=100 --thread-locks=2 run
memory测试
内存分配测试，主要是针对不同的块大小进行内存的连续读写或者随机读写测试。
memory options:
--memory-block-size=SIZE size of memory block for test [1K] --memory-total-size=SIZE total size of data to transfer [100G] --memory-scope=STRING memory access scope {global,local} [global] --memory-hugetlb=[on|off] allocate memory from HugeTLB pool [off] --memory-oper=STRING type of memory operations {read, write, none} [write] --memory-access-mode=STRING memory access mode {seq,rnd} [seq]
1.8k顺序分配
./sysbench --num-threads=12 --max-requests=10000 --test=memory --memory-block-size=8K --memory-total-size=100G --memory-access-mode=seq run
[root@localhost sysbench-0.4.12]# ./sysbench --num-threads=12 --max-requests=10000 --test=memory --memory-block-size=8K --memory-total-size=100G --memory-access-mode=seq run sysbench 0.4.12.10: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 12 Random number generator seed is 0 and will be ignored Doing memory operations speed test Memory block size: 8K Memory transfer size: 102400M Memory operations type: write Memory scope type: global Threads started! Done. Operations performed: 13107200 (993893.95 ops/sec) 102400.00 MB transferred (7764.80 MB/sec) General statistics: total time: 13.1877s total number of events: 13107200 total time taken by event execution: 91.9173 response time: min: 0.00ms avg: 0.01ms max: 0.93ms approx. 95 percentile: 0.02ms Threads fairness: events (avg/stddev): 1092266.6667/4629.30 execution time (avg/stddev): 7.6598/0.02
报告：时间13S,7.7G/S
2.8k随机分配
./sysbench --num-threads=12 --max-requests=10000 --test=memory --memory-block-size=8K --memory-total-size=100G --memory-access-mode=rnd run
[root@localhost sysbench-0.4.12]# ./sysbench --num-threads=12 --max-requests=10000 --test=memory --memory-block-size=8K --memory-total-size=100G --memory-access-mode=rnd run sysbench 0.4.12.10: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 12 Random number generator seed is 0 and will be ignored Doing memory operations speed test Memory block size: 8K Memory transfer size: 102400M Memory operations type: write Memory scope type: global Threads started! Done. Operations performed: 13107200 (1036066.63 ops/sec) 102400.00 MB transferred (8094.27 MB/sec) General statistics: total time: 12.6509s total number of events: 13107200 total time taken by event execution: 71.5377 response time: min: 0.00ms avg: 0.01ms max: 0.90ms approx. 95 percentile: 0.02ms Threads fairness: events (avg/stddev): 1092266.6667/19850.15 execution time (avg/stddev): 5.9615/0.02