SysBench是一款开源的、跨平台的、模块化的、多线程的性能测试工具，通过高负载地运行在数据库上，可以执行CPU/内存/线程/IO/数据库等方面的性能测试。用于评估操作系统的性能参数。

1 sysbench简介

        Sysbench使得我们无需采用真正的复杂的数据库benchmark而获取系统的性能概况。

        目前主要支持的数据库有mysql、oracle、postgresql。

        可评估的系统性能参数有：

1.      Cpu性能

2.      内存分配与传输速度测试

3.      互斥体测试

4.      文件I/O性能

5.      线程调度性能

6.      数据库服务性能（OLTP基准）

        本来sysbench主要是为mysql编写的benchmark。但是现在SysBench将进一步扩展，以支持更多的数据库backends，distributed benchmarks和第三方插件模块。

        sysbench按照指定的数量开启线程，每个线程与mysql建立一个连接，每个线程不停地进行事务操作，打开事务，然后进行一些查询、更新、插入操作，提交事务，再开始新的事务；所有的sql只访问一个表-sbtest，是由sysbench的prepare命令建好的。其中的记录数，也是在prepare时指定好并创建的。测试结束，会有一个统计结果，包括例如每秒事务数、平均响应时间等等；

2  sysbench下载与安装

1.下载

        下载地址：Phoronix Test Suite download | SourceForge.net

        获得sysbench-0.4.8.tar.gz源码。sysbench-0.4.8.tar.gz编译未通过。

2.安装

        默认支持MySQL，如果需要测试Oracle/PostgreSQL，则在configure时需要加上–with-oracle或者–with-pgsql参数

[root@RedHat sysbench-0.4.8]# ./configure --without-mysql
[root@RedHat sysbench-0.4.8]# make
[root@RedHat sysbench-0.4.8]# make install

        如果需要测试mysql，则需要配置参数选项：

./configure

--with-mysql-includes=/opt/mysql/include/mysql 表示mysql头文件目录

 --with-mysql-libs=/opt/mysql/lib/mysql表示mysql模块目录

        如果缺少libtool请至ftp://ftp.gnu.org/gnu/libtool/下载

3 sysbench帮助说明

        请查看sysbench帮助

[root@RedHat sysbench-0.4.8]# sysbench
Missing required command argument.
Usage:
  sysbench [general-options]... --test=<test-name> [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]
  --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
 
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
 
See 'sysbench --test=<name> help' for a list of options for each test.
 
[root@RedHat sysbench-0.4.8]#

        其中通用参数

其中--test=STRING中的STRING可选项有：

4 文件IO测试

4.1 参数说明

[root@RedHat test]# sysbench --test=fileio help
sysbench v0.4.8:  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-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 poss ible (0- don't merge) [0]
  --file-rw-ratio=N             reads/writes ratio for combined test [1.5]
 
[root@RedHat test]#

        参数选项说明：

4.2 测试案例

        创建2个进程，创建的文件总大小为3G，文件读写模式为随机读。

        可以获取读写速度~

[root@RedHat test]# sysbench --test=fileio --num-threads=2 --file-total-size=512M --file-test-mode=rndrw prepare （准备测试文件）
sysbench v0.4.8:  multi-threaded system evaluation benchmark
 
128 files, 4096Kb each, 512Mb total
Creating files for the test...
 
[root@RedHat test]# sysbench --test=fileio --num-threads=2 --file-total-size=512M --file-test-mode=rndrw run （运行测试）
sysbench v0.4.8:  multi-threaded system evaluation benchmark
 
Running the test with following options:
Number of threads: 2
 
Extra file open flags: 0
128 files, 4Mb each
512Mb total file size
Block size 16Kb
Number of random requests for random IO: 10000
Read/Write ratio for combined random IO test: 1.50
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
Threads started!
Done.
 
Operations performed:  6000 Read, 4000 Write, 12800 Other = 22800 Total
Read 93.75Mb  Written 62.5Mb  Total transferred 156.25Mb  (3.2979Mb/sec)
  211.07 Requests/sec executed
 
Test execution summary:
    total time:                          47.3783s
    total number of events:              10000
    total time taken by event execution: 36.6912
    per-request statistics:
         min:                            0.0000s
         avg:                            0.0037s
         max:                            0.2687s
         approx.  95 percentile:         0.0230s
 
Threads fairness:
    events (avg/stddev):           5000.0000/180.00
    execution time (avg/stddev):   18.3456/0.19
 
[root@RedHat test]# sysbench --test=fileio --num-threads=2 --file-total-size=512M --file-test-mode=rndrw cleanup （清除测试文件）
sysbench v0.4.8:  multi-threaded system evaluation benchmark
 
Removing test files...
[root@RedHat test]#

5 CPU性能测试

Sysbench采用寻找最大素数的方式测试CPU性能：

[root@RedHat ~]# sysbench --test=cpu help
sysbench v0.4.8:  multi-threaded system evaluation benchmark
 
cpu options:
  --cpu-max-prime=N      upper limit for primes generator [10000]
 
[root@RedHat ~]#

5.1 参数解析

5.2 测试案例

[root@RedHat ~]# sysbench --test=cpu --cpu-max-prime=20000 run
sysbench v0.4.8:  multi-threaded system evaluation benchmark
Running the test with following options:
Number of threads: 1
Doing CPU performance benchmark
Threads started!
Done.
Maximum prime number checked in CPU test: 20000
Test execution summary:
    total time:                          124.1761s
    total number of events:              10000
    total time taken by event execution: 123.3658
    per-request statistics:
         min:                            0.0051s
         avg:                            0.0123s
         max:                            0.1908s
         approx.  95 percentile:         0.0171s
 
Threads fairness:
    events (avg/stddev):           10000.0000/0.00
    execution time (avg/stddev):   123.3658/0.00
[root@RedHat ~]#

6. 内存性能测试

6.1 测试参数

[root@RedHat ~]# sysbench --test=memory help
sysbench v0.4.8:  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]
 
[root@RedHat ~]#

参数说明：

6.2 测试案例

[root@RedHat test]# sysbench --test=memory --memory-block-size=4k --memory-total-size=64M run

7.线程性能测试

7.1 测试参数

[root@RedHat ~]# sysbench --test=threads help
sysbench v0.4.8:  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]
 
[root@RedHat ~]#

参数说明：

7.2 测试案例

[root@RedHat test]# sysbench --test=threads --num-threads=64 --thread-yields=100 --thread-locks=2 run
sysbench v0.4.8:  multi-threaded system evaluation benchmark
 
Running the test with following options:
Number of threads: 64
 
Doing thread subsystem performance test
Thread yields per test: 100 Locks used: 2
Threads started!
Done.
 
Test execution summary:
    total time:                          24.8159s
    total number of events:              10000
    total time taken by event execution: 1575.5529
    per-request statistics:
         min:                            0.0002s
         avg:                            0.1576s
         max:                            2.0173s
         approx.  95 percentile:         0.5627s
 
Threads fairness:
    events (avg/stddev):           156.2500/12.62
    execution time (avg/stddev):   24.6180/0.08
 
[root@RedHat test]#

8 互斥体性能测试

8.1 测试参数

[root@RedHat ~]# sysbench --test=mutex help
sysbench v0.4.8:  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]
 
[root@RedHat ~]#

参数解析：

8.2 测试案例

[root@RedHat test]# sysbench --test=mutex --num-threads=16 --mutex-num=1024 --mutex-locks=10000 --mutex-loops=5000 run
sysbench v0.4.8:  multi-threaded system evaluation benchmark
 
Running the test with following options:
Number of threads: 16
 
Doing mutex performance test
Threads started!
Done.
 
Test execution summary:
    total time:                          0.0482s
    total number of events:              16
    total time taken by event execution: 0.2271
    per-request statistics:
         min:                            0.0015s
         avg:                            0.0142s
         max:                            0.0312s
         approx.  95 percentile:         0.0126s
 
Threads fairness:
    events (avg/stddev):           1.0000/0.00
    execution time (avg/stddev):   0.0142/0.01
[root@RedHat test]#

9 OLTP测试

不做分析了

10. 参考资料：

Phoronix Test Suite download | SourceForge.net

sysbench_qiudakun的博客-CSDN博客

http://www.ningoo.net/html/2009/performance_test_tool_sysbench.html