壓力測試 apache ab工具使用說明
ab工具使用說明
1 . 安裝ab工具命令
sudo apt-get install apache2-utils
2.ab命令參數說明
Usage: ab [options] [http[s]://]hostname[:port]/path
Options are:
//請求數
-n requests Number of requests to perform
//並發數
-c concurrency Number of multiple requests to make
-t timelimit Seconds to max. wait for responses
-b windowsize Size of TCP send/receive buffer, in bytes
//post文件(包含post數據)，同事要設置-T
-p postfile File containing data to POST. Remember also to set -T
-u putfile File containing data to PUT. Remember also to set -T
//為POST設置內容類型頭部
-T content-type Content-type header for POSTing, eg.
‘application/x-www-form-urlencoded‘
Default is ‘text/plain‘
//打印故障排除信息
-v verbosity How much troubleshooting info to print
-w Print out results in HTML tables
-i Use HEAD instead of GET
-x attributes String to insert as table attributes
-y attributes String to insert as tr attributes
-z attributes String to insert as td or th attributes
//設置Cookie
-C attribute Add cookie, eg. ‘Apache=1234. (repeatable)
//設置頭部行
-H attribute Add Arbitrary header line, eg. ‘Accept-Encoding: gzip‘
Inserted after all normal header lines. (repeatable)
-A attribute Add Basic WWW Authentication, the attributes
are a colon separated username and password.
-P attribute Add Basic Proxy Authentication, the attributes
are a colon separated username and password.
-X proxy:port Proxyserver and port number to use
-V Print version number and exit
-k Use HTTP KeepAlive feature
-d Do not show percentiles served table.
-S Do not show confidence estimators and warnings.
-g filename Output collected data to gnuplot format file.
-e filename Output CSV file with percentages served
-r Don‘t exit on socket receive errors.
-h Display usage information (this message)
-Z ciphersuite Specify SSL/TLS cipher suite (See openssl ciphers)
-f protocol Specify SSL/TLS protocol (SSL2, SSL3, TLS1, or ALL)
3.使用方法
運行 ab -n 100 -c 10 http://keketour.me/
對 http://keketour.me/ 網站 進行著100次請求,10個請求同時並發
壓力測試結果
Server Software: lighttpd/1.4.20
Server Hostname: www.meetu.hk
Server Port: 80
Document Path: /
Document Length: 2095 bytes
Concurrency Level: 10
//整個測試持續的時間
Time taken for tests: 3.303 seconds
//完成的請求數量
Complete requests: 100
Failed requests: 0
Write errors: 0
Total transferred: 235200 bytes
HTML transferred: 209500 bytes
//平均每秒處理30個請求
Requests per second: 30.27 [#/sec] (mean)
//平均每個請求處理時間為330毫秒 註:這裏將一次10個並發請求看成一個整體
Time per request: 330.335 [ms] (mean)
//平均每個並發請求處理 時間 為33毫秒
Time per request: 33.034 [ms] (mean, across all concurrent requests)
Transfer rate: 69.53 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 51 170 35.9 178 230
Processing: 60 153 64.5 121 263
Waiting: 55 148 64.4 115 258
Total: 235 322 59.9 299 437
Percentage of the requests served within a certain time (ms)
//在這100個請求中有50%在299毫秒內完成
50% 299
//在這100個請求中有66%在312毫秒內完成
66% 312
75% 383
80% 412
90% 431
95% 432
98% 436
99% 437
100% 437 (longest request)
註意：
模擬登陸的時候，只需要設置Cookie:
1.先用賬戶和密碼登錄後，用開發者工具找到標識這個會話的Cookie值（Session ID）記下來
2.如果只用到一個Cookie，那麽只需鍵入命令：
ab －n 100 -c 10 －C jiang_token＝3820aab5-a395-48b2-8d2b-87bf47026e78
http://keketour.me/
如果需要多個Cookie，就直接設Header：
ab -n 100 -H “Cookie: Key1=Value1; Key2=Value2” http://keketour.me/
測試API接口 (這裏以添加行程方案為例)
ab -n 10 -c 5 -p /var/www/kkt/post.txt -v 3 -H "Cookie:jiang_token=3820aab5-a395-48b2-8d2b-87bf47026e78;X-Requested-With:XMLHttpRequest" -T application/x-www-form-urlencoded "http://keketour.me/product/tourinfo/savetournameajax"
其中post.txt為post參數文本,內容為
name=壓力測試行程方案&tour_id=0&product_id=1382&_method=PATCH
總結：
ab工具ab小巧簡單，上手學習較快，可以提供需要的基本性能指標，但是沒有圖形化結果，不能監控。因此ab工具可以用作臨時緊急任務和簡單測試。
本文出自 “從前慢” 博客，請務必保留此出處http://onebig.blog.51cto.com/13006327/1981389
壓力測試 apache ab工具使用說明