通过sysbench工具实现MySQL数据库的性能测试的方法-创新互联
1.背景
创新互联主要从事做网站、网站制作、网页设计、企业做网站、公司建网站等业务。立足成都服务舒城,十年网站建设经验,价格优惠、服务专业,欢迎来电咨询建站服务:13518219792sysbench是一款压力测试工具,可以测试系统的硬件性能,也可以用来对数据库进行基准测试。sysbench 支持的测试有CPU运算性能测试、内存分配及传输速度测试、磁盘IO性能测试、POSIX线程性能测试、互斥性测试测试、数据库性能测试(OLTP基准测试)。目前支持的数据库主要是MySQL数据库和PG数据库。
在新服务器上线时,建议对服务器的性能做一次测试,最好与既往的同类型的服务器的性能测试报表做一个横线比较,发现潜在问题。及新机器上线前,对服务器做一次体检。
对数据库而言,我们可以通过sysbench工具实现对数据库的基准测试。在现在的系统架构中,前端都比较容易弹性水平拓展,数据库相对较难,因此,基准测试对数据库具有很重要的作用。而对数据库的基准测试的作用,就是分析在当前的配置下(包括硬件配置、OS、数据库设置等),数据库的性能表现,从而找出MySQL的性能阈值,并根据实际系统的要求调整配置。
2.sysbench的安装
1)安装命令
yum -y install sysbench
2)查看安装的版本
sysbench --version
3)查看已安装软件的信息(主要是通 rpm 命令)。
查询sysbench的安装信息,主要是测试mysql时,需要使用sysbench自带的lua脚本进行测试。如果使用快速安装的方式,默认的脚本路径为:/usr/share/sysbench
。
如果不在这个命令,我们我们执行以下命令查看,查找已安装在本机Linux系统上面的所有的sysbench软件的程序:
rpm -qa sysbench
列出该软件所有的文件与目录所在完整文件名(list):
rpm -ql sysbench
3.sysbench 语法
sysbench --help Usage: sysbench [options]... [testname] [command] Commands implemented by most tests: prepare run cleanup help General options: --threads=N number of threads to use [1] --events=N limit for total number of events [0] --time=N limit for total execution time in seconds [10] --forced-shutdown=STRING number of seconds to wait after the --time limit before forcing shutdown, or 'off' to disable [off] --thread-stack-size=SIZE size of stack per thread [64K] --rate=N average transactions rate. 0 for unlimited rate [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. [] --debug[=on|off] print more debugging info [off] --validate[=on|off] perform validation checks where possible [off] --help[=on|off] print help and exit [off] --version[=on|off] print version and exit [off] --config-file=FILENAME File containing command line options --tx-rate=N deprecated alias for --rate [0] --max-requests=N deprecated alias for --events [0] --max-time=N deprecated alias for --time [0] --num-threads=N deprecated alias for --threads [1] Pseudo-Random Numbers Generator options: --rand-type=STRING random numbers distribution {uniform,gaussian,special,pareto} [special] --rand-spec-iter=N number of iterations used for numbers generation [12] --rand-spec-pct=N percentage of values to be treated as 'special' (for special distribution) [1] --rand-spec-res=N percentage of 'special' values to use (for special distribution) [75] --rand-seed=N seed for random number generator. When 0, the current time is used as a RNG seed. [0] --rand-pareto-h=N parameter h for pareto distribution [0.2] Log options: --verbosity=N verbosity level {5 - debug, 0 - only critical messages} [3] --percentile=N percentile to calculate in latency statistics (1-100). Use the special value of 0 to disable percentile calculations [95] --histogram[=on|off] print latency histogram in report [off] General database options: --db-driver=STRING specifies database driver to use ('help' to get list of available drivers) [mysql] --db-ps-mode=STRING prepared statements usage mode {auto, disable} [auto] --db-debug[=on|off] print database-specific debug information [off] Compiled-in database drivers: mysql - MySQL driver pgsql - PostgreSQL driver mysql options: --mysql-host=[LIST,...] MySQL server host [localhost] --mysql-port=[LIST,...] MySQL server port [3306] --mysql-socket=[LIST,...] MySQL socket --mysql-user=STRING MySQL user [sbtest] --mysql-password=STRING MySQL password [] --mysql-db=STRING MySQL database name [sbtest] --mysql-ssl[=on|off] use SSL connections, if available in the client library [off] --mysql-ssl-cipher=STRING use specific cipher for SSL connections [] --mysql-compression[=on|off] use compression, if available in the client library [off] --mysql-debug[=on|off] trace all client library calls [off] --mysql-ignore-errors=[LIST,...] list of errors to ignore, or "all" [1213,1020,1205] --mysql-dry-run[=on|off] Dry run, pretend that all MySQL client API calls are successful without executing them [off] 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] 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
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