Ab

指令說明: http://httpd.apache.org/docs/current/programs/ab.html 安裝 debian 1 sudo apt-get install apache2-utils centos 1 yum install httpd-tools 執行結果 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 $ ab -n 100 -c 10 https://google.com/ This is ApacheBench, Version 2.3 <$Revision: 1826891 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking google.com (be patient).....done Server Software: gws Server Hostname: google.com Server Port: 443 SSL/TLS Protocol: TLSv1.2,ECDHE-ECDSA-CHACHA20-POLY1305,256,256 TLS Server Name: google.com Document Path: / Document Length: 220 bytes Concurrency Level: 10 Time taken for tests: 0.981 seconds Complete requests: 100 Failed requests: 0 Non-2xx responses: 100 Total transferred: 71000 bytes HTML transferred: 22000 bytes Requests per second: 101.95 [#/sec] (mean) Time per request: 98.091 [ms] (mean) Time per request: 9.809 [ms] (mean, across all concurrent requests) Transfer rate: 70.69 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 41 63 12.2 62 109 Processing: 16 24 9.0 21 56 Waiting: 15 24 8.7 21 56 Total: 64 87 17.8 83 150 Percentage of the requests served within a certain time (ms) 50% 83 66% 87 75% 91 80% 94 90% 107 95% 138 98% 150 99% 150 100% 150 (longest request) 說明 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Concurrency Level (併發數量) Time taken for tests (本次壓力測試所花費的總秒數) Complete requests (完成的請求數) Failed requests (失敗的請求數) Total transferred (本次測試的總傳輸量) HTML transferred (本次測試的 HTML 傳輸量) Requests per second (每秒回應多少請求) (平均值) Time per request (每個請求所花費的時間) (ms) (平均值) Time per request (每個請求所花費的時間，所有同時連線數的平均值) (ms) (平均值) Transfer rate (傳輸速率) Connection Times min 最小值 mean[+/-sd] 平均值[標準差] median 中位數 max 最大值 Connect 建立 TCP 連線的時間花費 Processing 建立 TCP 連線後，Server 處理請求的時間花費 Waiting 發出請求到接到第一個 Byte 的等待時間 Total 總花費時間 (Connect + Processing) 常用組合 100 個請求量，10 個併發 ...