针对系统和数据库压测是项目上线前必做的一项,这里使用的是最新版本的sysbench做的压测使用详解。sysbench可以做系统层面的压力测试(CPU、内存、硬盘IO、互斥锁、Thead),也可以做数据库(MySQL/Oracle/PG)层面的压力测试。安装容易,操作便捷,是压测使用的重要工具之一。
一、sysbench下载
项目地址:https://launchpad.net/sysbench下载地址:https://github.com/akopytov/sysbench/archive/1.0.3.tar.gz二、sysbench安装
[root@DB_TEST tools]# tar -xzvf sysbench-1.0.3.tar.gz
[root@DB_TEST tools]# cd sysbench-1.0.3
[root@DB_TEST sysbench-1.0.3]# ./autogen.sh
[root@DB_TEST sysbench-1.0.3]#./configure --prefix=/usr/local/sysbench --with-mysql
[root@DB_TEST sysbench-1.0.3]# make
[root@DB_TEST sysbench-1.0.3]# make install
[root@DB_TEST sysbench-1.0.3]# cp -rp /usr/local/sysbench/bin/sysbench /usr/bin/
[root@DB_TEST sysbench-1.0.3]# /usr/local/sysbench/bin/sysbench --help
点击(此处)折叠或打开
- [root@BJ-133-22 sysbench-1.0.3]# /usr/local/sysbench/bin/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 distibution [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)
- --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 help' for a list of options for each test.
三、sysbench使用
1、CPU性能测试
cpu性能测试:找范围内最大素数{时间越短越好}
cpu性能测试主要是根据素数的加法运算,这里指定最大素数(质数)为80000,--num-threads=`grep "processor" /proc/cpuinfo | wc -l`指定线程数,默认是1
/usr/local/sysbench/bin/sysbench --test=cpu --cpu-max-prime=80000 run
点击(此处)折叠或打开
- [root@db_test ~]# /usr/local/sysbench/bin/sysbench --test=cpu --cpu-max-prime=80000 run
- WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
- sysbench 1.0.3 (using bundled LuaJIT 2.1.0-beta2)
- Running the test with following options:
- Number of threads: 1
- Initializing random number generator from current time
- Prime numbers limit: 80000
- Initializing worker threads...
- Threads started!
- General statistics:
- total time: 10.0057s
- total number of events: 520
- Latency (ms):
- min: 18.74
- avg: 19.24
- max: 19.39
- 95th percentile: 19.29
- sum: 10005.32
- Threads fairness:
- events (avg/stddev): 520.0000/0.00
- execution time (avg/stddev): 10.0053/0.00
实际环境CPU拷机压测脚本如下:
echo -e "进行CPU压力测试: 寻找小于1千万的最大质数,并发线程数10,最大请求数100 "
/usr/local/bin/sysbench --num-threads=10 --max-requests=100 --test=cpu --debug --cpu-max-prime=10000000 run
2、内存性能测试
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
内存:以不同块大小传输一定数量的数据吞吐量大小{越大越好}
点击(此处)折叠或打开
- [root@db_test fileio]# /usr/local/sysbench/bin/sysbench --test=memory help
- WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
- sysbench 1.0.3 (using bundled LuaJIT 2.1.0-beta2)
- memory options:
- --memory-block-size=SIZE size of memory block for test [1K] 测试时内存块大小
- --memory-total-size=SIZE total size of data to transfer [100G] 传输数据总大小
- --memory-scope=STRING memory access scope {global,local} [global] 内存访问范围
- --memory-hugetlb[=on|off] allocate memory from HugeTLB pool [off] 从<span "=""> HugeTLB pool内存分配
- --memory-oper=STRING type of memory operations {read, write, none} [write] 内存操作类型
- --memory-access-mode=STRING memory access mode {seq,rnd} [seq] 存储器存取方式
示例:测试传输数据总量为5G,每个块大小是1K(一般设置是8K),连续读写的情况下,吞吐量3435.87 MiB/sec
[root@db_test fileio]# /usr/local/sysbench/bin/sysbench --test=memory --memory-block-size=1K --memory-total-size=5G run
WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
sysbench 1.0.3 (using bundled LuaJIT 2.1.0-beta2)
Running the test with following options:
Number of threads: 1
Initializing random number generator from current time
Initializing worker threads...
Threads started!
Operations performed: 5242880 (3518332.06 ops/sec)
5120.00 MiB transferred (3435.87 MiB/sec)
General statistics:
total time: 1.4883s
total number of events: 5242880
Latency (ms):
min: 0.00
avg: 0.00
max: 0.03
95th percentile: 0.00
sum: 631.01
Threads fairness:
events (avg/stddev): 5242880.0000/0.00
execution time (avg/stddev): 0.6310/0.00
实际内存压力测试脚本:
echo -e "进行内存压力测试: 测试范围32G,并发线程数10,最大请求数100, 读 "
/usr/local/bin/sysbench --num-threads=10 --max-requests=100 --test=memory --memory-block-size=8K --memory-total-size=${MEM}G --memory-oper=read run
echo -e "进行内存压力测试: 测试范围32G,并发线程数10,最大请求数100, 写 "
/usr/local/bin/sysbench --num-threads=10 --max-requests=100 --test=memory --memory-block-size=8K --memory-total-size=${MEM}G --memory-oper=write run
3、磁盘IO性能测试
IO性能测试:不同场景下IOPS{越大越好}
点击(此处)折叠或打开
- [root@db_test sysbench-1.0.3]# /usr/local/sysbench/bin/sysbench --test=fileio help
- WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
- sysbench 1.0.3 (using bundled LuaJIT 2.1.0-beta2)
- 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,mmap} [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]
--file-num=N 创建测试文件数量,默认是 [128]
--file-block-size=N 测试时文件块大小,默认是[16384],即16K
--file-total-size=SIZE 测试文件的总大小,默认是 [2G]
--file-test-mode=STRING 测试模式 {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 文件操作模式{sync,async,mmap} [sync]
--file-extra-flags=STRING 使用额外的标志打开文件 {sync,dsync,direct} []
--file-fsync-freq=N 执行fsync()频率,0表示不使用,默认100
--file-fsync-all=[on|off] 每执行一次写操作执行一次fsync(),默认 [off]
--file-fsync-end=[on|off] 测试结束执行fsync(),默认 [on]
--file-fsync-mode=STRING 同步方法 {fsync, fdatasync} [fsync]
--file-merged-requests=N 如果可以,则合并IO请求数,默认0表示不合并
--file-rw-ratio=N 测试读写比例,默认[1.5]
seqwr 顺序写入
seqrewr 顺序重写
seqrd 顺序读取
rndrd 随机读取
rndwr 随机写入
rndrw 混合随机读/写
FileIO示例01: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!
##Fileio准备工作,生成测试数据(最好比内存的2倍大)
[root@db_test fileio]# /usr/local/sysbench/bin/sysbench --num-threads=16 --test=fileio --file-total-size=10G --file-test-mode=rndrw prepare
WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
WARNING: --num-threads is deprecated, use --threads instead
sysbench 1.0.3 (using bundled LuaJIT 2.1.0-beta2)
128 files, 81920Kb each, 10240Mb total
Creating files for the test...
Extra file open flags: 0
Creating file test_file.0
...
Creating file test_file.127
10737418240 bytes written in 9.96 seconds (1027.97 MiB/sec).
##正式执行FileIO测试
[root@db_test fileio]# /usr/local/sysbench/bin/sysbench --num-threads=16 --test=fileio --file-total-size=10G --file-test-mode=rndrw run
WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
WARNING: --num-threads is deprecated, use --threads instead
sysbench 1.0.3 (using bundled LuaJIT 2.1.0-beta2)
Running the test with following options:
Number of threads: 16
Initializing random number generator from current time
Extra file open flags: 0
128 files, 80MiB each
10GiB total file size
Block size 16KiB
Number of IO requests: 0
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
Initializing worker threads...
Threads started!
File operations:
reads/s: 1449.16
writes/s: 965.91
fsyncs/s: 3083.55
Throughput:
read, MiB/s: 22.64
written, MiB/s: 15.09
General statistics:
total time: 10.4176s
total number of events: 57291
Latency (ms):
min: 0.00
avg: 2.87
max: 825.08
95th percentile: 0.17
sum: 164312.66
Threads fairness:
events (avg/stddev): 3580.6875/469.53
execution time (avg/stddev): 10.2695/0.08
IO密切相关的包括每秒请求数和总吞吐量,其中请求数是(1449.16+965.91+3083.55)/s,吞吐量是(22.64+15.09)MB/s
##清理创建的文件
[root@db_test fileio]# /usr/local/sysbench/bin/sysbench --num-threads=16 --test=fileio --file-total-size=10G --file-test-mode=rndrw cleanup
WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
WARNING: --num-threads is deprecated, use --threads instead
sysbench 1.0.3 (using bundled LuaJIT 2.1.0-beta2)
Removing test files...
实际环境FILEIO压力测试脚本:
echo -e "进行IO压力测试: 20个文件,每个10GB,随机读写 "
/usr/local/bin/sysbench --file-num=20 --num-threads=20 --test=fileio --file-total-size=${HDD}G --max-requests=1000000 --file-test-mode=rndrw prepare
/usr/local/bin/sysbench --file-num=20 --num-threads=20 --test=fileio --file-total-size=${HDD}G --max-requests=1000000 --file-test-mode=rndrw run
/usr/local/bin/sysbench --file-num=20 --num-threads=20 --test=fileio --file-total-size=${HDD}G --max-requests=1000000 --file-test-mode=rndrw cleanup
4、thread测试
线程调度:线程并发执行,循环响应信号量花费的时间{越少越好}
测试线程调度器的性能。对于高负载情况下测试线程调度器的行为非常有用
点击(此处)折叠或打开
- [root@db_test fileio]# /usr/local/sysbench/bin/sysbench --test=threads help
- WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
- sysbench 1.0.3 (using bundled LuaJIT 2.1.0-beta2)
- threads options:
- --thread-yields=N number of yields to do per request [1000] 每个请求产生多少个线程,默认<span "="">[1000]
- --thread-locks=N number of locks per thread [8] 每个线程的锁数量,默认 [8]
示例:
[root@db_test fileio]# /usr/local/sysbench/bin/sysbench --num-threads=64 --test=threads --thread-yields=100 --thread-locks=2 run
WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
WARNING: --num-threads is deprecated, use --threads instead
sysbench 1.0.3 (using bundled LuaJIT 2.1.0-beta2)
Running the test with following options:
Number of threads: 64
Initializing random number generator from current time
Initializing worker threads...
Threads started!
General statistics:
total time: 10.0043s
total number of events: 102842
Latency (ms):
min: 0.02
avg: 6.22
max: 28.83
95th percentile: 15.00
sum: 640039.96
Threads fairness:
events (avg/stddev): 1606.9062/31.79
execution time (avg/stddev): 10.0006/0.00
5、互斥锁测试
互斥锁:并发线程同时申请互斥锁循环一定次数花费的时间{越少越好}
测试互斥锁的性能,方式是模拟所有线程在同一时刻并发运行,并都短暂请求互斥锁
点击(此处)折叠或打开
- [root@db_test fileio]# /usr/local/sysbench/bin/sysbench --test=mutex help
- WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
- sysbench 1.0.3 (using bundled LuaJIT 2.1.0-beta2)
- mutex options:
- --mutex-num=N total size of mutex array [4096] 数组互斥总大小,默认<span "="">[4096]
- --mutex-locks=N number of mutex locks to do per thread [50000] 每个线程互斥锁的数量,默认 [50000]
- --mutex-loops=N number of empty loops to do inside mutex lock [10000] 内部互斥锁的空循环数量,默认 [10000]
所有线程同时执行,获取短时间的mutex lock,以便测试mutex的实现!
示例:
[root@db_test fileio]# /usr/local/sysbench/bin/sysbench --test=mutex --mutex-num=4096 --mutex-locks=50000 --mutex-loops=20000 run
WARNING: the --test option is deprecated. You can pass a script name or path on the command line without any options.
sysbench 1.0.3 (using bundled LuaJIT 2.1.0-beta2)
Running the test with following options:
Number of threads: 1
Initializing random number generator from current time
Initializing worker threads...
Threads started!
General statistics:
total time: 0.0021s
total number of events: 1
Latency (ms):
min: 2.05
avg: 2.05
max: 2.05
95th percentile: 2.03
sum: 2.05
Threads fairness:
events (avg/stddev): 1.0000/0.00
execution time (avg/stddev): 0.0020/0.00