壓力測試webbench（轉）

webbench最多可以模拟3萬個并發連接配接去測試網站的負載能力，個人感覺要比Apache自帶的ab壓力測試工具好，安裝使用也特别友善。

　　1、适用系統：Linux

　　2、編譯安裝： 

引用

wget http://blog.s135.com/soft/linux/webbench/webbench-1.5.tar.gz

tar zxvf webbench-1.5.tar.gz

cd webbench-1.5

make && make install

如果遇到以下錯誤：

[root@localhost webbench-1.5]# make && make install

cc -Wall -ggdb -W -O   -c -o webbench.o webbench.c

make: cc: Command not found

make: *** [webbench.o] Error 127

表示需要安裝 gcc  aptitude install gcc

　　3、使用： 

webbench -c 500 -t 30 http://127.0.0.1/test.jpg

　　參數說明：-c表示并發數，-t表示時間(秒)

　　4、測試結果示例： 

Webbench - Simple Web Benchmark 1.5

Copyright (c) Radim Kolar 1997-2004, GPL Open Source Software.

Benchmarking: GET http://127.0.0.1/test.jpg

500 clients, running 30 sec.

Speed=3230 pages/min, 11614212 bytes/sec.

Requests: 1615 susceed, 0 failed.

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接下來可以測試了

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條件1：模拟200個用戶端請求.

webbench -c 200 -t 60 http://127.0.0.1/index.php （-c 時間同時并發連接配接數，-t是請求持續的時間）

Benchmarking: GET http://127.0.0.1/index.php

200 clients, running 60 sec.

Speed=61325 pages/min, 164563 bytes/sec.

Requests: 61325 susceed, 0 failed.

結果1：伺服器響應 1022 page /sec,61325請求全部成功

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請求2： 500 個用戶端并發請求，流暢

 webbench -c 500 -t 60 http://127.0.0.1/index.phpWebbench - Simple Web Benchmark 1.5

500 clients, running 60 sec.

Speed=48949 pages/min, 133143 bytes/sec.

Requests: 48949 susceed, 0 failed.

結果2：48949 pages/min, 133143 bytes/sec   ，響應順利

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請求3:1000個用戶端并發請求

webbench -c 1000 -t 60 http://127.0.0.1/index.php

1000 clients, running 60 sec.

Speed=18342 pages/min, 52711 bytes/sec.

Requests: 18309 susceed, 33 failed.

結果3：響應延遲，并有失敗現象

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請求4:2000個用戶端并發請求

webbench -c 2000 -t 60 http://127.0.0.1/index.php

2000 clients, running 60 sec.

Speed=585724 pages/min, 125593 bytes/sec.

Requests: 584688 susceed, 1036 failed.

結果4：失敗數增多

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請求5:10000個用戶端并發請求