sysbench 壓測 詳解
解壓,進入解壓以後的目錄
./autogen.sh
./configure --with-mysql-includes=/usr/local/mysql/include --with-mysql-libs=/usr/local/mysql/lib
make && make install
export LD_LIBRARY_PATH=/usr/local/mysql/lib
開始進行測試
通用配置
接下來我們來分別看一下各個模式的相關參數、測試方法和結果分析。
sysbench的基本命令格式為:
sysbench –test=< test-name> [options]… < command>
1、–test=< test-name>
這部分是指定測試類型,基本類型有fileio,cpu,memory,threads,mutex,oltp(或者指定lua腳本)
2、[options]…
這部分包括測試需要的各種選項,有全局的也有每個測試模式自由的選項
(每個測試模式的選項可以用./sysbench –test=< test-name> help來獲取)
3、< command>
控制命令,總共有五個
prepare #準備測試,主要是生成測試數據
run #執行測試,根據選項限制來執行測試
cleanup #清除準備階段生成的測試數據
version #獲取版本信息
幾個重要的全局參數:
–num-threads=N number of threads to use [1] #測試時使用的線程數
–max-requests=N limit for total number of requests [10000] #測試過程最多執行多少次請求
–max-time=N limit for total execution time in seconds [0] #測試過程總共執行多長時間(和–max-requests效果同樣,但是兩個同時限定的時候誰優先還沒有測試)
–report-interval=N periodically report intermediate statistics with a specified interval in seconds. 0 disables intermediate reports [0] #每隔多少秒輸出測試概況(這個過程你可以觀察到mysql redolog的切換情況)
#mysql鏈接選項
–mysql-host=[LIST,…] MySQL server host [localhost] #mysql主機地址
–mysql-port=N MySQL server port [3306] #mysql端口
–mysql-socket=[LIST,…] MySQL socket #mysql socket文件位置,指定這個之後 其他的鏈接選項均可以不指定
–mysql-user=STRING MySQL user [sbtest] #用來測試的mysql用戶名
–mysql-password=STRING MySQL password [] #密碼
–mysql-db=STRING MySQL database name [sbtest] #測試數據庫名 默認sbtest
1、測試磁盤IO性能
參數詳解:
–file-num=N 代表生成測試文件的數量,默認為128。
–file-block-size=N 測試時所使用文件塊的大小,如果想磁盤針對innodb存儲引擎進行測試,可以將其設置為16384,即innodb存儲引擎頁的大小。默認為16384。
–file-total-size=SIZE 創建測試文件的總大小,默認為2G大小。
–file-test-mode=STRING 文件測試模式,包含:seqwr(順序寫), seqrewr(順序讀寫), seqrd(順序讀), rndrd(隨機讀), rndwr(隨機寫), rndrw(隨機讀寫)。
–file-io-mode=STRING 文件操作的模式,sync(同步),async(異步),fastmmap(快速mmap),slowmmap(慢速mmap),默認為sync同步模式。
–file-async-backlog=N 對應每個線程隊列的異步操作數,默認為128。
–file-extra-flags=STRING 打開文件時的選項,這是與API相關的參數。
–file-fsync-freq=N 執行fsync()函數的頻率。fsync主要是同步磁盤文件,因為可能有系統和磁盤緩沖的關系。 0代表不使用fsync函數。默認值為100。
–file-fsync-all=[on|off] 每執行完一次寫操作,就執行一次fsync。默認為off。
–file-fsync-end=[on|off] 在測試結束時執行fsync函數。默認為on。
–file-fsync-mode=STRING文件同步函數的選擇,同樣是和API相關的參數,由於多個操作系統對於fdatasync支持不同,因此不建議使用fdatasync。默認為fsync。
–file-merged-requests=N 大多情況下,合並可能的IO的請求數,默認為0。
–file-rw-ratio=N 測試時的讀寫比例,默認時為1.5,即可3:2。
1)生成測試文件
sysbench --test=fileio --file-num=10 --file-total-size=5G prepare
2)測試
sysbench --test=fileio --file-total-size=5G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=16 --init-rng=on --file-num=10 --file-extra-flags=direct --file-fsync-freq=0 --file-block-size=16384 run
3)結果如下
sysbench 0.4.12.10: multi-threaded system evaluation benchmark
Running the test with following options:
Number of threads: 16
Initializing random number generator from timer.
Random number generator seed is 0 and will be ignored
Extra file open flags: 4000
10 files, 512Mb each
5Gb total file size
Block size 16Kb
Number of random requests for random IO: 100000000
Read/Write ratio for combined random IO test: 1.50
Calling fsync() at the end of test, Enabled.
Using synchronous I/O mode
Doing random r/w test
Threads started!
Time limit exceeded, exiting...
(last message repeated 15 times)
Done.
Operations performed: 17981 reads, 11990 writes, 0 Other = 29971 Total
Read 280.95Mb Written 187.34Mb Total transferred 468.3Mb (2.6012Mb/sec)
166.48 Requests/sec executed
General statistics:
total time: 180.0298s
total number of events: 29971
total time taken by event execution: 2880.3206
response time:
min: 0.38ms
avg: 96.10ms
max: 390.42ms
approx. 95 percentile: 209.91ms
Threads fairness:
events (avg/stddev): 1873.1875/11.51
execution time (avg/stddev): 180.0200/0.01
##註意:主要看這裏
Read 280.95Mb Written 187.34Mb Total transferred 468.3Mb (2.6012Mb/sec) 166.48 Requests/sec executed
大概是在180秒裏面總共隨機讀取280.95MB ,寫入187.24MB ,平均每秒隨機讀寫的效率時2.6012MB ,IOPS為166.48 Requests/sec
4)清楚測試數據
sysbench --test=fileio --file-num=10 --file-total-size=5G cleanup
2、cpu測試
參數詳解:
–cpu-max-prime=N 用來選項指定最大的素數,具體參數可以根據CPU的性能來設置,默認為10000
sysbench --test=cpu --cpu-max-prime=20000 run
測試結果
sysbench 0.4.12.10: multi-threaded system evaluation benchmark
Running the test with following options:
Number of threads: 1
Random number generator seed is 0 and will be ignored
Doing CPU performance benchmark
Primer numbers limit: 20000
Threads started!
Done.
General statistics:
total time: 20.8126s
total number of events: 10000
total time taken by event execution: 20.8006
response time:
min: 1.91ms
avg: 2.08ms
max: 13.94ms
approx. 95 percentile: 2.71ms
Threads fairness:
events (avg/stddev): 10000.0000/0.00
execution time (avg/stddev): 20.8006/0.00
##註意:測試的總時間(total time)即可(越小越憂)
3、內存分配及傳輸速度(測試了內存的連續讀寫性能)
參數詳解:
–memory-block-size=SIZE 測試內存塊的大小,默認為1K
–memory-total-size=SIZE 數據傳輸的總大小,默認為100G
–memory-scope=STRING 內存訪問的範圍,包括全局和本地範圍,默認為global
–memory-hugetlb=[on|off] 是否從HugeTLB池分配內存的開關,默認為off
–memory-oper=STRING 內存操作的類型,包括read, write, none,默認為write
–memory-access-mode=STRING 內存訪問模式,包括seq,rnd兩種模式,默認為seq
sysbench --test=memory --memory-block-size=8K --memory-total-size=1G --num-threads=16 run
結果:
sysbench 0.4.12.10: multi-threaded system evaluation benchmark
Running the test with following options:
Number of threads: 16
Random number generator seed is 0 and will be ignored
Doing memory operations speed test
Memory block size: 8K
Memory transfer size: 1024M
Memory operations type: write
Memory scope type: global
Threads started!
Done.
Operations performed: 131072 (1223663.93 ops/sec)
1024.00 MB transferred (9559.87 MB/sec)
General statistics:
total time: 0.1071s
total number of events: 131072
total time taken by event execution: 0.3210
response time:
min: 0.00ms
avg: 0.00ms
max: 96.20ms
approx. 95 percentile: 0.00ms
Threads fairness:
events (avg/stddev): 8192.0000/7510.93
execution time (avg/stddev): 0.0201/0.03
4、oltp-數據庫性能測試
參數詳解:
–oltp-test-mode=STRING 執行模式{simple,complex(advanced transactional),nontrx(non-transactional),sp}。默認是complex
–oltp-reconnect-mode=STRING 重新連接模式{session(不使用重新連接。每個線程斷開只在測試結束),transaction(在每次事務結束後重新連接),query(在每個SQL語句執行完重新連接),random(對於每個事務隨機選擇以上重新連接模式)}。默認是session
–oltp-sp-name=STRING 存儲過程的名稱。默認為空
–oltp-read-only=[on|off] 只讀模式。Update,delete,insert語句不可執行。默認是off
–oltp-skip-trx=[on|off] 省略begin/commit語句。默認是off
–oltp-range-size=N 查詢範圍。默認是100
–oltp-point-selects=N number of point selects [10]
–oltp-simple-ranges=N number of simple ranges [1]
–oltp-sum-ranges=N number of sum ranges [1]
–oltp-order-ranges=N number of ordered ranges [1]
–oltp-distinct-ranges=N number of distinct ranges [1]
–oltp-index-updates=N number of index update [1]
–oltp-non-index-updates=N number of non-index updates [1]
–oltp-nontrx-mode=STRING 查詢類型對於非事務執行模式{select, update_key, update_nokey, insert, delete} [select]
–oltp-auto-inc=[on|off] AUTO_INCREMENT是否開啟。默認是on
–oltp-connect-delay=N 在多少微秒後連接數據庫。默認是10000
–oltp-user-delay-min=N 每個請求最短等待時間。單位是ms。默認是0
–oltp-user-delay-max=N 每個請求最長等待時間。單位是ms。默認是0
–oltp-table-name=STRING 測試時使用到的表名。默認是sbtest
–oltp-table-size=N 測試表的記錄數。默認是10000
–oltp-dist-type=STRING 分布的隨機數{uniform(均勻分布),Gaussian(高斯分布),special(空間分布)}。默認是special
–oltp-dist-iter=N 產生數的叠代次數。默認是12
–oltp-dist-pct=N 值的百分比被視為’special’ (for special distribution)。默認是1
–oltp-dist-res=N ‘special’的百分比值。默認是75
1)創建測試用的數據
sysbench --test=oltp --oltp-table-size=1000000 --mysql-db=sysbench --mysql-user=root --mysql-host=127.0.0.1 --mysql-password=123456 prepare
2)開始測試
sysbench --test=oltp --oltp-table-size=1000000 --mysql-db=sysbench --mysql-user=root --mysql-host=127.0.0.1 --mysql-password=123456 --max-time=60 --oltp-read-only=off --max-requests=0 --num-threads=8 run
3)結果如下
sysbench 0.4.12.10: multi-threaded system evaluation benchmark
No DB drivers specified, using mysql
Running the test with following options:
Number of threads: 8
Random number generator seed is 0 and will be ignored
Doing OLTP test.
Running mixed OLTP test
Using Special distribution (12 iterations, 1 pct of values are returned in 75 pct cases)
Using "BEGIN" for starting transactions
Using auto_inc on the id column
Using 1 test tables
Threads started!
Time limit exceeded, exiting...
(last message repeated 7 times)
Done.
OLTP test statistics:
queries performed:
read: 263046
write: 93934
other: 37574
total: 394554
transactions: 18785 (313.05 per sec.)
deadlocks: 4 (0.07 per sec.)
read/write requests: 356980 (5948.98 per sec.)
other operations: 37574 (626.16 per sec.)
General statistics:
total time: 60.0069s
total number of events: 18785
total time taken by event execution: 479.9184
response time:
min: 2.23ms
avg: 25.55ms
max: 1696.98ms
approx. 95 percentile: 54.14ms
Threads fairness:
events (avg/stddev): 2348.1250/6.21
execution time (avg/stddev): 59.9898/0.00
##主要註意這幾個參數 transactions: 18785 (313.05 per sec.)
read/write requests: 356980 (5948.98 per sec.)
other operations: 37574 (626.16 per sec.)
4)清除數據
sysbench --test=oltp --oltp-table-size=1000000 --mysql-db=sysbench --mysql-user=root --mysql-host=127.0.0.1 --mysql-password=123456 --max-time=60 --oltp-read-only=off --max-requests=0 --num-threads=8 cleanup
sysbench 壓測 詳解