shell script web 壓力測試

Tags:

shell

簡中版

網頁好讀版

用 shell script 寫一個簡單的 web 壓測工具。

1. 先建一個 curl-format 設定我們要的 curl response

curl-format.txt

Example

http_code:  %{http_code}\n                                                                                                        
    time_namelookup:  %{time_namelookup}\n
       time_connect:  %{time_connect}\n
    time_appconnect:  %{time_appconnect}\n
   time_pretransfer:  %{time_pretransfer}\n
      time_redirect:  %{time_redirect}\n
 time_starttransfer:  %{time_starttransfer}\n
                    ----------\n
         time_total:  %{time_total}\n

2. 用 Shell script 壓同一個 url 30 次

Example

for i in {1..30}
do
    s="$s\n$i"          
done    
 
echo -e $s | xargs  -n 1 -P8 -I% curl  -w "@curl-format.txt"  -I -k "https://www.yourhost.com/path?offset=0&limit=10" --max-time 30  2>&1

執行結果

Example

HTTP/1.1 200 OK
Content-Type: application/json;charset=utf-8
Content-Length: 3311
Date: Sun, 09 Aug 2020 15:22:54 GMT
Age: 0
Connection: keep-alive
 
          http_code:  200
    time_namelookup:  0.001633
       time_connect:  0.020480
    time_appconnect:  0.066257
   time_pretransfer:  0.066334
      time_redirect:  0.000000
 time_starttransfer:  0.084286
                    ----------
         time_total:  0.084404
.
.
.

同時對不同的 url 壓測

先建立一個 list.txt ，每一行填一個 path， QPS 設定 10 ，每次送 10 個 Requests，然後 SLEEP_SEC=1 等一秒。

Example

QPS=10
SLEEP_SEC=1
 
serviceBase="http://www.yourhost.com"
file="list.txt"
declare -a allUrl
echo "To load test urls"
i=0
while IFS= read -r line
do
    url="$serviceBase$line"
    allUrl[$i]="$url"
    echo "will test $url\n"
    i=$((i+1))
    if [ $i -gt $QPS ]; then
        break;
    fi  
done < "$file"
 
while true;
    do
    all=""
    for url in ${allUrl[@]}
    do
        all="$all\n$url";
    done
    echo -e "$all" | xargs  -n 1 -t -P$QPS -I%  curl  -I -w "@curl-format.txt"  -k "%"   --max-time 5  2>&1
    echo -e "\n\ncomplete $QPS requests, sleep $SLEEP_SEC seconds\n\n"
    if [ $SLEEP_SEC -gt 0 ];then
        sleep $SLEEP_SEC
    fi
done

網頁好讀版

This post was last modified by puritys 2020/08/09