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ab(Apache Bench) tools
ab - Apache HTTP 서버 벤치마킹 도구
ab 버전
$ ab -V
This is ApacheBench, Version 2.3 <$Revision: 1430300 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/ab 명령어
더보기
---
$ ab -h
Usage: ab [options] [http[s]://]hostname[:port]/path
Options are:
-n requests Number of requests to perform
-c concurrency Number of multiple requests to make at a time
-t timelimit Seconds to max. to spend on benchmarking
This implies -n 50000
-s timeout Seconds to max. wait for each response
Default is 30 seconds
-b windowsize Size of TCP send/receive buffer, in bytes
-B address Address to bind to when making outgoing connections
-p postfile File containing data to POST. Remember also to set -T
-u putfile File containing data to PUT. Remember also to set -T
-T content-type Content-type header to use for POST/PUT data, eg.
'application/x-www-form-urlencoded'
Default is 'text/plain'
-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
-C attribute Add cookie, eg. 'Apache=1234'. (repeatable)
-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.
-q Do not show progress when doing more than 150 requests
-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
(SSL3, TLS1, TLS1.1, TLS1.2 or ALL)---
ab tools 설치
- ubuntu
apt install -y apache2-utils- centos / amzn2
yum install -y httpd-toolsab 명령어의 기본 구문
ab -n [요청 횟수] -c [동시 접속 수] [URL]- [요청 횟수] : HTTP 서버에 전송할 요청의 횟수를 지정합니다.
- [동시 접속 수] : 동시에 처리할 수 있는 요청의 최대 수를 지정합니다.
- [URL] : HTTP 서버에 전송할 요청 URL을 지정합니다.
ab 테스트 명령어
###ab -n 요청 수 -c 동시 클라이언트 수 -t 시간 URL
ab -n 10 -c 1 https://www.google.com/$ ab -n 10 -c 1 https://www.google.com/
This is ApacheBench, Version 2.3 <$Revision: 1874286 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking www.google.com (be patient).....done
Server Software: gws
Server Hostname: www.google.com
Server Port: 443
SSL/TLS Protocol: TLSv1.2,ECDHE-ECDSA-AES128-GCM-SHA256,256,128
Server Temp Key: ECDH P-256 256 bits
TLS Server Name: www.google.com
Document Path: /
Document Length: 13054 bytes
Concurrency Level: 1
Time taken for tests: 2.426 seconds
Complete requests: 10
Failed requests: 9
(Connect: 0, Receive: 0, Length: 9, Exceptions: 0)
Total transferred: 139652 bytes
HTML transferred: 130582 bytes
Requests per second: 4.12 [#/sec] (mean)
Time per request: 242.585 [ms] (mean)
Time per request: 242.585 [ms] (mean, across all concurrent requests)
Transfer rate: 56.22 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 129 133 1.8 134 134
Processing: 105 110 3.3 110 115
Waiting: 100 104 3.4 104 111
Total: 237 243 3.8 244 250
Percentage of the requests served within a certain time (ms)
50% 244
66% 244
75% 244
80% 246
90% 250
95% 250
98% 250
99% 250
100% 250 (longest request)728x90
ab 성능 테스트
ab 테스트 명령
ab -n 300 -c 300 https://www.scbyun.com/$ ab -n 300 -c 300 https://www.scbyun.com/ | egrep 'Concurrency Level|Time taken for tests|Complete requests|Failed requests|Requests per second|Time per request|Transfer rate'
Concurrency Level: 300
Time taken for tests: 16.899 seconds
Complete requests: 300
Failed requests: 0
Requests per second: 17.75 [#/sec] (mean)
Time per request: 16899.169 [ms] (mean)
Time per request: 56.331 [ms] (mean, across all concurrent requests)
Transfer rate: 2374.39 [Kbytes/sec] receivedab 테스트 지표
- 명령어를 입력한 후, ApacheBench는 HTTP 서버에 대한 요청을 보내며, 이에 대한 응답 시간, 처리 속도 등의 결과를 출력합니다.
- 결과 중에서도 특히, Transactions per second (TPS)와 Time per request는 HTTP 서버의 처리 성능을 평가하는 데 중요한 지표입니다.
| 1 | 2 | 3 | 4 | 5 | 6 | |
| 요청 수 (requests) |
1 | 10 | 100 | 100 | 100 | 100 |
|
동시성 수준
(Concurrency Level) |
1 | 10 | 10 | 20 | 50 | 100 |
| 테스트 소요 시간(s) (Time taken for tests) |
0.279 | 0.980 | 6.059 | 6.165 | 6.288 | 6.159 |
| 실패한 요청 (Failed requests) |
0 | 0 | 0 | 0 | 0 | 0 |
|
초당 요청 수
(Requests per second) |
3.58 | 10.20 | 16.51 | 16.22 | 15.90 | 16.24 |
| 요청당 평균 소요 시간(ms) #1 (Time per request) |
279.310 | 980.295 | 605.860 | 1233.061 | 3143.972 | 6159.137 |
| 요청당 평균 소요 시간(ms) #2 (Time per request) |
279.310 | 98.030 | 60.586 | 61.653 | 62.879 | 61.591 |
| 전송 속도 (Transfer rate) |
- 초당 요청 수 = 100 / 6.059 = 16.51
- #1 Time per request (mean) = 동시 요청을 처리하는데 걸린 평균 시간(10 * 6.059 * 1000 / 100 = 605.860ms)
- #2 Time per request (mean, across all concurrent requests) = 단일 요청을 처리하는데 걸린 평균 시간(6.059 * 1000 / 100 = 60.586ms)
참고URL
- ab : 아파치 웹서버 성능검사 도구(https://httpd.apache.org/docs/2.4/en/programs/ab.html, https://httpd.apache.org/docs/2.4/programs/ab.html)
- ab tools 에러 : https://scbyun.com/993
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