sysbench是一个模块化的、跨平台、多线程基准测试工具，主要用于评估测试各种不同系统参数下的数据库负载情况
它主要包括以下几种方式的测试：
1、cpu性能
2、磁盘io性能
3、调度程序性能
4、内存分配及传输速度
5、POSIX线程性能
6、数据库性能(OLTP基准测试)
目前sysbench主要支持 mysql,pgsql,oracle 这3种数据库。
一 前期准备
1 下载 sysbench
http://sf.net/projects/sysbench/
2 安装：
[root@rac3 ~]# tar zxvf sysbench-0.4.12.tar.gz
[root@rac3 ~]# cd sysbench-0.4.12
[root@rac3 sysbench-0.4.12]# ls
acinclude.m4 autogen.sh config configure.ac doc install-sh Makefile.in mkinstalldirs README-WIN.txt TODO
aclocal.m4 ChangeLog configure COPYING INSTALL Makefile.am missing README sysbench
[root@rac3 sysbench-0.4.12]# ./autogen.sh
[root@rac3 sysbench-0.4.12]#
[root@rac3 sysbench-0.4.12]# ./configure
--prefix=/usr/local/sysbench \ --指定sysbench的安装目录
--with-mysql-includes=/usr/include/mysql \ --mysql的头文件
--with-mysql-libs=/var/lib/mysql --mysql 链接库文件
默认是支持mysql的,如果要测试oracle或者pgsql 必须使用--with-oracle ,--with-pgsql 比如：
Note
如果是oracle，在.bash_profile文件中添加：
export CC=cc
export CXX=c++
export CFLAGS="-m64 -I /opt/oracle/11.2.0/alifpre/rdbms/public"
export CXXFLAGS="$CFLAGS"
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
编译sysbench：
[oracle@rac3 sysbench-0.4.12]# ./autogen.sh
[oracle@rac3 sysbench-0.4.12]#
[oracle@rac3 sysbench-0.4.12]# ./configure
--prefix=/home/oracle/sysbench
--with-oracle-libs=/opt/oracle/11.2.0/alifpre/lib
--with-oracle
--without-mysql --可选
make ORA_LIBS=/opt/oracle/11.2.0/alifpre/lib/libclntsh.so && make install
3 用法
Usage:
sysbench [general-options]... --test= [test-options]... command
General options:
--num-threads=N number of threads to use [1] 默认为1
--max-requests=N limit for total number of requests [10000] 最大的请求数
--max-time=N limit for total execution time in seconds [0] 默认为 0 为无限制
--forced-shutdown=STRING 达到最大执行时间未结束,则强制关闭。默认是[off]
--thread-stack-size=SIZE size of stack per thread [32K]每个线程的stack的大小
--init-rng=[on|off] initialize random number generator [off]
--test=STRING 测试类型 cpu,fileio,oltp,mutex,memory
--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
二 测试
前面介绍了sysbench 是一个可以测试 cpu性能,磁盘io性能,调度程序性能,内存分配及传输速度,POSIX线程性能,数据库性能.下面依次介绍
2.1 测试cup,cpu测试主要是进行素数的加法运算，例子中指定了最大的素数为 80000
[root@rac3 kernel]# sysbench --test=cpu --cpu-max-prime=80000 run
sysbench 0.4.12: 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: 80000
Test execution summary:
total time: 172.6663s
total number of events: 10000
total time taken by event execution: 172.6490
per-request statistics:
min: 17.07ms
avg: 17.26ms
max: 73.72ms
approx. 95 percentile: 17.62ms
Threads fairness:
events (avg/stddev): 10000.0000/0.00
execution time (avg/stddev): 172.6490/0.00
2.2 测试fileio
选项 描述
--file-num Number of files to create 默认为128
--file-block-size 读写操作是I/O的操作单位默认为16K
--file-total-size 测试文件的总大小 默认为2G
--file-io-mode I/O mode. Possible values: sync, async, fastmmap, slowmmap (only if supported by the platform, see above). sync
--file-async-backlog Number of asynchronous operations to queue per thread (only for --file-io-mode=async, see above) 128
--file-extra-flags Additional flags to use with open(2)
--file-fsync-freq Do fsync() after this number of requests (0 - don not use fsync()) 100
--file-fsync-all Do fsync() after each write operation no
--file-fsync-end Do fsync() at the end of the test yes
--file-fsync-mode Which method to use for synchronization. Possible values: fsync, fdatasync (see above) fsync
--file-merged-requests Merge at most this number of I/O requests if possible (0 - don not merge) 0
--file-rw-ratio reads/writes ration for combined random read/write test 1.5
--file-test-mode 指定文件测试类型：
seqwr sequential write
seqrewr sequential rewrite
seqrd sequential read
rndrd random read
rndwr random write
rndrw combined random read/write
下面的例子 prepare 命令创建了128个文件总共大小为10G ，文件读写模式为随机读写混合方式。run 命令则进行测试，并返回结果，cleanup 删除测试产生的文件！
[root@rac3 ~]# sysbench --num-threads=16 --test=fileio --file-total-size=10G --file-test-mode=rndrw prepare
sysbench 0.4.12: multi-threaded system evaluation benchmark
128 files, 81920Kb each, 10240Mb total
Creating files for the test...
[root@rac3 ~]# sysbench --num-threads=16 --test=fileio --file-total-size=10G --file-test-mode=rndrw run
Operations performed: 6006 Read, 3994 Write, 12800 ther = 22800 Total
Read 93.844Mb Written 62.406Mb Total transferred 156.25Mb (9.4882Mb/sec)
607.24 Requests/sec executed
Test execution summary:
total time: 16.4678s
total number of events: 10000
total time taken by event execution: 225.4641
per-request statistics:
min: 0.01ms
avg: 22.55ms
max: 498.74ms
approx. 95 percentile: 101.48ms
Threads fairness:
events (avg/stddev): 625.0000/29.59
execution time (avg/stddev): 14.0915/0.30
[root@rac3 ~]# sysbench --num-threads=16 --test=fileio --file-total-size=10G --file-test-mode=rndrw cleanup
sysbench 0.4.12: multi-threaded system evaluation benchmark
Removing test files...
[root@rac3 ~]#
2.3 memory 内存测试
sysbench 测试memory的时候是顺序读或写内存的。根据选项的不同，每次操作过程中，每个线程可以获取global或本地的数据块
[root@rac3 ~]# sysbench --test=memory --memory-block-size=1k --memory-total-size=0.5G run
sysbench 0.4.12: multi-threaded system evaluation benchmark
Running the test with following options:
Number of threads: 1
Doing memory operations speed test
Memory block size: 0K
Memory transfer size: 0M
Memory operations type: write
Memory scope type: global
Threads started!
Done.
Operations performed: 0 ( 0.00 ops/sec)
0.00 MB transferred (0.00 MB/sec)
Test execution summary:
total time: 0.0002s
total number of events: 0
total time taken by event execution: 0.0000
per-request statistics:
min: 18446744073709.55ms
avg: 0.00ms
max: 0.00ms
Threads fairness:
events (avg/stddev): 0.0000/0.00
execution time (avg/stddev): 0.0000/0.00
2.4 thread 测试
[root@rac3 ~]# sysbench --num-threads=64 --test=threads --thread-yields=100 --thread-locks=2 run
sysbench 0.4.12: 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: 2.0199s
total number of events: 10000
total time taken by event execution: 128.6847
per-request statistics:
min: 0.38ms
avg: 12.87ms
max: 2016.38ms
approx. 95 percentile: 0.42ms
Threads fairness:
events (avg/stddev): 156.2500/262.89
execution time (avg/stddev): 2.0107/0.00
2.5 mutex 测试
所有线程同时执行，获取短时间的mutex lock，以便测试mutex的实现！
[root@rac3 ~]# sysbench --test=mutex --mutex-num=4096 --mutex-locks=50000 --mutex-loops=20000 run
sysbench 0.4.12: multi-threaded system evaluation benchmark
Running the test with following options:
Number of threads: 1
Doing mutex performance test
Threads started!
Done.
Test execution summary:
total time: 0.0053s
total number of events: 1
total time taken by event execution: 0.0051
per-request statistics:
min: 5.11ms
avg: 5.11ms
max: 5.11ms
approx. 95 percentile: 10000000.00ms
Threads fairness:
events (avg/stddev): 1.0000/0.00
execution time (avg/stddev): 0.0051/0.00
2.6 oltp测试
sysbench 进行oltp 测试的之前，必须创建一个--mysql-db 指定的或者默认的sbtest 数据库，进行prepare的时候，sysbench自动创建一个sbtest表。
[root@rac3 ~]# sysbench --test=oltp --mysql-table-engine=innodb --oltp-table-size=1000000 --mysql-user=root --mysql-host=127.0.0.1 --mysql-db=test prepare
sysbench 0.4.12: multi-threaded system evaluation benchmark
No DB drivers specified, using mysql
Creating table 'sbtest'...
Creating 1000000 records in table 'sbtest'... --创建了一个1000000行的表sbtest
进行测试 三种不同的测试模式：semple,complex,nontrx
[root@rac3 ~]# sysbench --test=oltp \
--mysql-table-engine=innodb \
--oltp-table-size=1000000 \
--mysql-user=root \
--mysql-host=127.0.0.1 \
--mysql-db=test run
OLTP test statistics:
queries performed:
read: 140000
write: 50000
other: 20000
total: 210000
transactions: 10000 (292.09 per sec.)
deadlocks: 0 (0.00 per sec.)
read/write requests: 190000 (5549.78 per sec.)
other operations: 20000 (584.19 per sec.)
Test execution summary:
total time: 34.2356s
total number of events: 10000
total time taken by event execution: 34.1541
per-request statistics:
min: 2.80ms
avg: 3.42ms
max: 128.54ms
approx. 95 percentile: 3.60ms
Threads fairness:
events (avg/stddev): 10000.0000/0.00
execution time (avg/stddev): 34.1541/0.00
[root@rac3 ~]# sysbench --test=oltp --mysql-table-engine=innodb \
--oltp-table-size=1000000 \
--mysql-user=root \
--mysql-host=127.0.0.1 \
--mysql-db=test \
--oltp-test-mode=complex run
sysbench 0.4.12: multi-threaded system evaluation benchmark
OLTP test statistics:
queries performed:
read: 140000
write: 50000
other: 20000
total: 210000
transactions: 10000 (294.07 per sec.)
deadlocks: 0 (0.00 per sec.)
read/write requests: 190000 (5587.40 per sec.)
other operations: 20000 (588.15 per sec.)
Test execution summary:
total time: 34.0051s
total number of events: 10000
total time taken by event execution: 33.9249
per-request statistics:
min: 2.78ms
avg: 3.39ms
max: 114.85ms
approx. 95 percentile: 3.57ms
Threads fairness:
events (avg/stddev): 10000.0000/0.00
execution time (avg/stddev): 33.9249/0.00
若进行mode为nontrx 的测试之前，已经进行了其他两种模式的测试，先执行cleanup 或者prepare
[root@rac3 ~]# sysbench --test=oltp \
--mysql-table-engine=innodb \
--oltp-table-size=1000000 \
--mysql-user=root \
--mysql-host=127.0.0.1 \
--mysql-db=test \
--oltp-test-mode=nontrx run
OLTP test statistics:
queries performed:
read: 10000
write: 0
other: 0
total: 10000
transactions: 10000 (12276.25 per sec.)
deadlocks: 0 (0.00 per sec.)
read/write requests: 10000 (12276.25 per sec.)
other operations: 0 (0.00 per sec.)
Test execution summary:
total time: 0.8146s
total number of events: 10000
total time taken by event execution: 0.7892
per-request statistics:
min: 0.07ms
avg: 0.08ms
max: 0.41ms
approx. 95 percentile: 0.09ms
Threads fairness:
events (avg/stddev): 10000.0000/0.00
execution time (avg/stddev): 0.7892/0.00
[root@rac3 ~]# sysbench --test=oltp --mysql-table-engine=innodb --oltp-table-size=1000000 --mysql-user=root --mysql-host=127.0.0.1 --mysql-db=test --oltp-test-mode=nontrx cleanup
sysbench 0.4.12: multi-threaded system evaluation benchmark
No DB drivers specified, using mysql
Dropping table 'sbtest'...
Done.