一、概述
sysbench是一个模块化的、跨渠道、多线程基准测验东西，首要用于评估测验各种不同系统参数下的数据库负载状况，它首要包含以下几种方式的测验：磁盘io功能、数据库功能、内存分配及传输速度等，具体的介绍见：gitee.com/cn-loongson…
它首要包含以下几种方式的测验：
1、cpu功能。
2、磁盘io功能
3、调度程序功能
4、内存分配及传输速度
5、POSIX线程功能
6、数据库功能(OLTP基准测验)
目前sysbench首要支撑 MySQL,pgsql,oracle 这3种数据库
二、装置
2.1、源码编译装置
源码编译装置请参阅如下指令：
// 下载源码
git clone https://github.com/akopytov/sysbench.git
git checkout 1.0
./autogen.sh
./configure
make
sudo make install
装置指令履行成果如下：
2.2、指令行装置
Ubuntu下履行如下指令进行装置：
curl -s https://packagecloud.io/install/repositories/akopytov/sysbench/script.deb.sh | sudo bash
sudo apt -y install sysbench
指令行装置履行成果如下：
2.3、装置承认
履行如下指令来承认sysbench是否装置成功：
sysbench --version
lyb@lyb:~/learn/sysbench$ 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
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]
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
See 'sysbench <testname> help' for a list of options for each test.
lyb@lyb:~/learn/sysbench$
三、重要参数详解
3.1、查询支撑的参数
履行如下指令来承认sysbench是否装置成功：
3.2、重要参数说明
| 选项 | 默认值 | 描绘 |
|---|---|---|
| –threads | 创建1的作业线程总数 | 1 |
| –events | 恳求总数的约束。0(默认值)表明没有约束 | 0 |
| –time | 总履行时刻约束，以秒为单位。0表明不约束 | 10 |
| –warmup-time | 在启用计算信息运行实际基准测验之前，在禁用计算信息的状况下履行事情这么多秒。当您期望从计算数据中排除基准测验运行的初始阶段时，这十分有用。在许多基准测验中，初始时刻并不具有代表性，由于CPU/数据库/页面和其他缓存需求一些时刻来预热 | 0 |
| –rate | 这个数字指定了所有线程均匀每秒钟应该履行多少事情(事务)。0(默认)表明无限速率，即事情以尽或许快的速度履行 | 0 |
| –thread-init-timeout | 作业线程初始化的等待时刻，单位为秒 | 30 |
| –thread-stack-size | 每个线程的仓库大小 | 32k |
| –report-interval | 以间隔时刻为秒定期上报中间计算信息。留意，此选项生成的计算信息是按间隔计算的，而不是累积的。0禁用中间陈述 | 0 |
| –debugl | 打印更多的调试信息 | off |
| –validate | 在或许的状况下对测验成果进行验证 | off |
| –help | 打印通用语法或指定测验的帮助并退出 | off |
| –verbosity | 具体等级(0 -只要关键音讯，5 -调试) | 4 |
| –percentile | sysbench测量所有已处理恳求的履行时刻，以显现最小、均匀和最大履行时刻等计算信息。关于大多数基准测验，知道一个匹配某个百分比的恳求履行时刻值也是有用的(例如，95%百分比意味着咱们应该放弃最长恳求的5%，并从剩下的恳求中选择最大值)。此选项允许指定查询履行次数的百分位数用于计数 | 95 |
| –luajit-cmd | 履行一个LuaJIT控制指令。这个选项相当于luajit -j |
四、实例
4.1、CPU功能测验
运用如下指令进行CPU功能测验：
# 敞开两个线程，素数上限设置为20000
sysbench cpu --cpu-max-prime=20000 --threads=2 run
履行CPU压测指令成果如下：
4.2、内存功能测验
运用如下指令进行内存压测：
sysbench memory --threads=14 --memory-block-size=16K --memory-total-size=100G --memory-access-mode=seq run
履行内存压测指令成果如下：
4.3、IO功能测验
运用如下指令进行IO压测：
# 1、预备测验数据集，运用prepare指令
sysbench --test=fileio --file-total-size=2G prepare
# 2、混合随机读写测验
sysbench --test=fileio --file-test-mode=rndrw --file-total-size=2G --file-rw-ratio=2 run
# 3、清除测验数据集
sysbench --test=fileio --file-total-size=2G cleanup
履行IO压测指令成果如下：
4.4、POSIX线程功能测验
运用如下指令进行POSIX线程功能压测：
sysbench --test=threads --num-threads=500 --thread-yields=100 --thread-locks=4 run
履行POSIX线程功能指令成果如下：
4.5、多线程调度测验
运用如下指令进行多线程调度测验：
sysbench mutex --threads=8 --mutex-num=2000 --mutex-locks=10000 --mutex-loops=5000 run
履行进行多线程调度测验指令成果如下：
