sysbench压力测试工具安装和参数介绍
一、sysbench压力测试工具简介：
sysbench是一个开源的、模块化的、跨平台的多线程性能测试工具，可以用来进行CPU、内存、磁盘I/O、线程、数据库的性能测试。目前支持的数据库有MySQL、Oracle和PostgreSQL。以下操作都将以支持MySQL数据库为例进行。
1. sysbench工具安装：
默认支持MySQL，如果需要测试<span “=””>Oracle/PostgreSQL，则在configure时需要加上–with-oracle或者–with-pgsql参数
1.1 安装环境
CentOS release 6.3 (Final)
MySQL 5.6.13
MySQL_HOME=/usr/local/mysql/
Sysbench 0.4.12
1.2 下载安装包
wget http://sourceforge.net/projects/sysbench/sysbench-0.4.12.tar.gz
1.3 编译安装
tar –zxvf sysbench-0.4.12.tar.gz
进入解压缩包<span “=””>sysbench-0.4.12,并执行脚本<span “=””>autogen.sh
cd sysbench-0.4.12 ./autogen.sh configure && make && make install
首先是./configure命令，sysbench默认是支持MySQL的benchmarking的，如果不加任何选项则要求保证MySQL的安装路径都是默认的标准路径，headfile位于/usr/include目录下，libraries位于/usr/lib/目录下。因为我的MySQL是源码编译安装的，安装路径是放在/usr/local/mysql下，所以这里要添加相应的选项命令：
./configure --prefix=/usr/local/sysbench --with-mysql=/usr/local/mysql \ --with-mysql-includes=/usr/local/mysql/include/mysql/ \ --with-mysql-libs=/usr/local/mysql/lib/mysql/
注意：这里在编译时要将路径写到最后的include/mysql及lib/mysql，如下所示：
–with-mysql-includes=/usr/local/mysql/include/mysql/
–with-mysql-libs=/usr/local/mysql/lib/mysql/
因为网上好多资料都没有提到这一层，在编译时总是编译不过去，这里浪费了好多精力。
接下来执行如下命令：
make && make install
1.4 yum安装
如果觉得源码安装麻烦，也可以采用yum安装，操作如下：
yum install -y sysbench
2. sysbench支持的功能参数
首先，看看sysbench都支持哪些功能参数：
sysbench –help
Usage:
sysbench [general-options]… –test= [test-options]… command
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]
–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
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= help’ for a list of options for each test.
Sysbench的测试主要包括以下几个方面：
1、磁盘io性能
2、cpu性能
3、内存分配及传输速度
4、POSIX线程性能
5、调度程序性能
6、数据库性能(OLTP基准测试).
2.1 测试fileio命令帮助：
[root@db-master ~]# sysbench –test=fileio help
sysbench 0.4.12: multi-threaded system evaluation benchmark
fileio options:
–file-num=N number of files to create [128]
–file-block-size=N block size to use in all IO operations [16384]
–file-total-size=SIZE total size of files to create [2G]
–file-test-mode=STRING test mode {seqwr, seqrewr, seqrd, rndrd, rndwr, rndrw}
–file-io-mode=STRING file operations mode {sync,async,fastmmap,slowmmap} [sync]
–file-async-backlog=N number of asynchronous operatons to queue per thread [128]
–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]
–file-fsync-all=[on|off] do fsync() after each write operation [off]
–file-fsync-end=[on|off] do fsync() at the end of test [on]
–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]
参数详解：
–file-num=N 代表生成测试文件的数量，默认为128。
–file-block-size=N 测试时所使用文件块的大小，如果想磁盘针对innodb存储引擎进行测试，可以将其设置为16384，即innodb存储引擎页的大小。默认为16384。
–file-total-size=SIZE 创建测试文件的总大小，默认为2G大小。
–file-test-mode=STRING 文件测试模式，包含：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)。
–file-io-mode=STRING 文件操作的模式，sync（同步）,async（异步）,fastmmap（快速mmap）,slowmmap（慢速mmap），默认为sync同步模式。
–file-async-backlog=N 对应每个线程队列的异步操作数，默认为128。
–file-extra-flags=STRING 打开文件时的选项，这是与API相关的参数。
–file-fsync-freq=N 执行fsync()函数的频率。fsync主要是同步磁盘文件，因为可能有系统和磁盘缓冲的关系。 0代表不使用fsync函数。默认值为100。
–file-fsync-all=[on|off] 每执行完一次写操作，就执行一次fsync。默认为off。
–file-fsync-end=[on|off] 在测试结束时执行fsync函数。默认为on。
–file-fsync-mode=STRING文件同步函数的选择，同样是和API相关的参数，由于多个操作系统对于fdatasync支持不同，因此不建议使用fdatasync。默认为fsync。
–file-merged-requests=N 大多情况下，合并可能的IO的请求数，默认为0。
–file-rw-ratio=N 测试时的读写比例，默认时为1.5，即可3：2。
2.2 测试cpu命令帮助：
sysbench –test=cpu help
sysbench 0.4.12: multi-threaded system evaluation benchmark
cpu options:
–cpu-max-prime=N upper limit for primes generator [10000]
参数详解：
–cpu-max-prime=N 用来选项指定最大的素数，具体参数可以根据CPU的性能来设置，默认为10000
2.3 测试memory命令帮助：
[root@db-master ~]# sysbench –test=memory help
sysbench 0.4.12: multi-threaded system evaluation benchmark
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]
参数详解：
–memory-block-size=SIZE 测试内存块的大小，默认为1K
–memory-total-size=SIZE 数据传输的总大小，默认为100G
–memory-scope=STRING 内存访问的范围，包括全局和本地范围，默认为global
–memory-hugetlb=[on|off] 是否从HugeTLB池分配内存的开关，默认为off
–memory-oper=STRING 内存操作的类型，包括read, write, none，默认为write
–memory-access-mode=STRING 内存访问模式，包括seq,rnd两种模式，默认为seq
2.4 测试threads命令帮助：
[root@db-master ~]# sysbench –test=threads help
sysbench 0.4.12: multi-threaded system evaluation benchmark
threads options:
–thread-yields=N number of yields to do per request [1000]
–thread-locks=N number of locks per thread [8]
参数详解：
–thread-yields=N 指定每个请求的压力，默认为1000
–thread-locks=N 指定每个线程的锁数量，默认为8
2.5 测试mutex命令帮助：
sysbench –test=mutex help
sysbench 0.4.12: multi-threaded system evaluation benchmark
mutex options:
–mutex-num=N total size of mutex array [4096]
–mutex-locks=N number of mutex locks to do per thread [50000]
–mutex-loops=N number of empty loops to do inside mutex lock [10000]
参数详解：
–mutex-num=N 数组互斥的总大小。默认是4096
–mutex-locks=N 每个线程互斥锁的数量。默认是50000
–mutex-loops=N 内部互斥锁的空循环数量。默认是10000
2.6 测试oltp命令帮助：
sysbench –test=oltp help
sysbench 0.4.12: multi-threaded system evaluation benchmark
oltp options:
–oltp-test-mode=STRING test type to use {simple,complex,nontrx,sp} [complex]
–oltp-reconnect-mode=STRING reconnect mode {session,transaction,query,random} [session]
–oltp-sp-name=STRING name of store procedure to call in SP test mode []
–oltp-read-only=[on|off] generate only ‘read’ queries (do not modify database) [off]
–oltp-skip-trx=[on|off] skip BEGIN/COMMIT statements [off]
–oltp-range-size=N range size for range queries [100]
–oltp-point-selects=N number of point selects [10]
–oltp-simple-ranges=N number of simple ranges [1]
–oltp-sum-ranges=N number of sum ranges [1]
–oltp-order-ranges=N number of ordered ranges [1]
–oltp-distinct-ranges=N number of distinct ranges [1]
–oltp-index-updates=N number of index update [1]
–oltp-non-index-updates=N number of non-index updates [1]
–oltp-nontrx-mode=STRING mode for non-transactional test {select, update_key, update_nokey, insert, delete} [select]
–oltp-auto-inc=[on|off] whether AUTO_INCREMENT (or equivalent) should be used on id column [on]
–oltp-connect-delay=N time in microseconds to sleep after connection to database [10000]
–oltp-user-delay-min=N minimum time in microseconds to sleep after each request [0]
–oltp-user-delay-max=N maximum time in microseconds to sleep after each request [0]
–oltp-table-name=STRING name of test table [sbtest]
–oltp-table-size=N number of records in test table [10000]
–oltp-dist-type=STRING random numbers distribution {uniform,gaussian,special} [special]
–oltp-dist-iter=N number of iterations used for numbers generation [12]
–oltp-dist-pct=N percentage of values to be treated as ‘special’ (for special distribution) [1]
–oltp-dist-res=N percentage of ‘special’ values to use (for special distribution) [75]
General database options:
–db-driver=STRING specifies database driver to use (‘help’ to get list of available drivers)
–db-ps-mode=STRING prepared statements usage mode {auto, disable} [auto]
Compiled-in database drivers:
mysql – MySQL driver
pgsql – PostgreSQL driver
mysql options:
–mysql-host=[LIST,…] MySQL server host [localhost]
–mysql-port=N MySQL server port [3306]
–mysql-socket=STRING MySQL socket
–mysql-user=STRING MySQL user [sbtest]
–mysql-password=STRING MySQL password []
–mysql-db=STRING MySQL database name [sbtest]
–mysql-table-engine=STRING storage engine to use for the test table {myisam,innodb,bdb,heap,ndbcluster,federated} [innodb]
–mysql-engine-trx=STRING whether storage engine used is transactional or not {yes,no,auto} [auto]
–mysql-ssl=[on|off] use SSL connections, if available in the client library [off]
–myisam-max-rows=N max-rows parameter for MyISAM tables [1000000]
–mysql-create-options=STRING additional options passed to CREATE TABLE []
pgsql options:
–pgsql-host=STRING PostgreSQL server host [localhost]
–pgsql-port=N PostgreSQL server port [5432]
–pgsql-user=STRING PostgreSQL user [sbtest]
–pgsql-password=STRING PostgreSQL password []
–pgsql-db=STRING PostgreSQL database name [sbtest]
参数详解：
–oltp-test-mode=STRING 执行模式{simple,complex(advanced transactional),nontrx(non-transactional),sp}。默认是complex
–oltp-reconnect-mode=STRING 重新连接模式{session(不使用重新连接。每个线程断开只在测试结束),transaction(在每次事务结束后重新连接),query(在每个SQL语句执行完重新连接),random(对于每个事务随机选择以上重新连接模式)}。默认是session
–oltp-sp-name=STRING 存储过程的名称。默认为空
–oltp-read-only=[on|off] 只读模式。Update，delete，insert语句不可执行。默认是off
–oltp-skip-trx=[on|off] 省略begin/commit语句。默认是off
–oltp-range-size=N 查询范围。默认是100
–oltp-point-selects=N number of point selects [10]
–oltp-simple-ranges=N number of simple ranges [1]
–oltp-sum-ranges=N number of sum ranges [1]
–oltp-order-ranges=N number of ordered ranges [1]
–oltp-distinct-ranges=N number of distinct ranges [1]
–oltp-index-updates=N number of index update [1]
–oltp-non-index-updates=N number of non-index updates [1]
–oltp-nontrx-mode=STRING 查询类型对于非事务执行模式{select, update_key, update_nokey, insert, delete} [select]
–oltp-auto-inc=[on|off] AUTO_INCREMENT是否开启。默认是on
–oltp-connect-delay=N 在多少微秒后连接数据库。默认是10000
–oltp-user-delay-min=N 每个请求最短等待时间。单位是ms。默认是0
–oltp-user-delay-max=N 每个请求最长等待时间。单位是ms。默认是0
–oltp-table-name=STRING 测试时使用到的表名。默认是sbtest
–oltp-table-size=N 测试表的记录数。默认是10000
–oltp-dist-type=STRING 分布的随机数{uniform(均匀分布),Gaussian(高斯分布),special(空间分布)}。默认是special
–oltp-dist-iter=N 产生数的迭代次数。默认是12
–oltp-dist-pct=N 值的百分比被视为‘special’ (for special distribution)。默认是1
–oltp-dist-res=N ‘special’的百分比值。默认是75