ApacheBench
From ICO wiki
Sissejuhatus
ApacheBench on käsurea tööriis, mis on mõeldud veebiserverite testimiseks. Kasutades ApacheBenchi on võimalik saada ülevaade paigaldatud veebiserveri võimetest. Näidatakse kui palju taotlusi on veebiserver võimeline täitma erinevate koormuste juuras. See annab võimaluse testida veebiserveri käitumist tavakoormusel ning ka eriolukordades, kus pöördumiste arv serveri poole on suurem, kui tavaliselt.
Antud töös on kasutatud ApacheBench versiooni 2.3, ning see on paigaldatud Ubuntu operatsioonisüsteemiga arvutile. ApacheBench tarkvara paigaldamiseks tuleb käsurealt sisestada
sudo apt-get install apache2-utils
Testimiseks kasutatav veebiserver on Apache2, mis on paigaldatud Zentyal operatsioonisüsteemiga arvutile.
Võtmed
- Süntaks
- ab [võtmed] [http[s]://]hostname[:port]/path
| -A | auth-username:password – kasutajanime ja parooli edastamine serverile (nimi ja parool on eraldatud „:“) |
| -c | concurrency – samaaegsete pöördumiste arv ajas. Vaikimisi väärtus on üks. |
| -C | cookie-name=value – Lisab „Cookie“ rea pöördumisele. Argument esitatakse nime=väärtuse paarina. |
| -d | Ei väljasta protsentuaalset esituse osakaalu ajaühikus. |
| -e | csv-file – Väljastab CSV (comma-separated values) faili, mis sisaldab iga protsendile pöördumistest kulunud aega. |
| -g | Väljastab tulemused TSV (Tab separate values) faili. |
| -h | Näitab abi informatsiooni. |
| -H | custom-header – Päise lisamiseks (nt: "Accept-Encoding: zip/zop;8bit"). |
| -i | HEAD taotluse asemel GET taotlus. |
| -k | HTTP KeepAlive funktsiooni kasutamine. |
| -n | requests – Pöördumiste arv testimise käigus. |
| -p | POST-file – POSTle edastatavate andmetega fail. |
| -P | proxy-auth-username:password – kasutajanime ja parooli edastamiseks proxy serverile (nimi ja parool on eraldatud „:“) |
| -q | Ei väljastata jooksvalt testi läbinud katsete arvu. |
| -s | http asemel SSL kaitstud https protokoll. |
| -S | Ei väljasta hoiatusi ega veateateid. |
| -t | timelimit – Maksimaalse testi kestvuse määramiseks. |
| -T | content-type – POST päise tüüp. |
| -v | verbosity – Kui palju probleemi uurimiseks informatsiooni väljastatakse. |
| -V | Näitab versiooni numbrit. |
| -w | Väljastab tulemuse html tabelina. |
| -x | <table>-attributes – Sõne mis lisatakse, kui <table> atribuut. |
| -X | proxy[:port] – kasutatav proxy server ja port. |
| -y | <tr>-attributes - Sõne mis lisatakse, kui <tr> atribuut. |
| -z | <td>-attributes – Sõne mis lisatakse, kui <td> atribuut. |
Näited
Käsk väljastab ApacheBench kasutusjuhendi.
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
-t timelimit Seconds to max. wait for responses
-b windowsize Size of TCP send/receive buffer, in bytes
-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 for POSTing, 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.
-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)
Testitakse serverit aadressil 192.168.56.40, kus samaaegsete pöördumiste arv on 250 ja pöördumiste arv testimise jooksul on 1000.
ab -c 250 -n 1000 192.168.56.40/
This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking 192.168.56.40 (be patient) Completed 100 requests Completed 200 requests Completed 300 requests Completed 400 requests Completed 500 requests Completed 600 requests Completed 700 requests Completed 800 requests Completed 900 requests Completed 1000 requests Finished 1000 requests
Server Software: Apache/2.2.14 Server Hostname: 192.168.56.40 Server Port: 80
Document Path: / Document Length: 45423 bytes
Concurrency Level: 250 Time taken for tests: 7.716 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Total transferred: 45614000 bytes HTML transferred: 45423000 bytes Requests per second: 129.60 [#/sec] (mean) Time per request: 1929.086 [ms] (mean) Time per request: 7.716 [ms] (mean, across all concurrent requests) Transfer rate: 5772.80 [Kbytes/sec] received
Connection Times (ms) min mean[+/-sd] median max Connect: 0 15 189.8 0 3010 Processing: 32 1257 1939.9 629 7697 Waiting: 19 1204 1902.9 588 7486 Total: 38 1272 1948.9 629 7711
Percentage of the requests served within a certain time (ms) 50% 629 66% 659 75% 688 80% 732 90% 3758 95% 7024 98% 7626 99% 7664 100% 7711 (longest request)
Lisaks eelnevas näites toodule salvestatakse iga protsendile pöördumistest kulunud aeg csv faili ning ei väljastata jooksvalt testis läbitud katsete arvu.
ab -q -e ab.csv -c 250 -n 1000 192.168.56.40/
This is ApacheBench, Version 2.3 <$Revision: 655654 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking 192.168.56.40 (be patient).....done
Server Software: Apache/2.2.14 Server Hostname: 192.168.56.40 Server Port: 80
Document Path: / Document Length: 45423 bytes
Concurrency Level: 250 Time taken for tests: 8.302 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Total transferred: 45614000 bytes HTML transferred: 45423000 bytes Requests per second: 120.45 [#/sec] (mean) Time per request: 2075.602 [ms] (mean) Time per request: 8.302 [ms] (mean, across all concurrent requests) Transfer rate: 5365.30 [Kbytes/sec] received
Connection Times (ms) min mean[+/-sd] median max Connect: 0 18 211.9 0 3008 Processing: 28 1242 1966.3 673 8283 Waiting: 22 1159 1884.2 599 7828 Total: 35 1260 1976.7 674 8297
Percentage of the requests served within a certain time (ms) 50% 674 66% 708 75% 725 80% 737 90% 2272 95% 7362 98% 8255 99% 8282 100% 8297 (longest request)
ab.csv faili sisu
Percentage served,Time in ms 0,71.498 1,114.320 2,156.656 3,206.125 4,248.552 5,291.920 6,335.650 7,375.084 8,413.947 9,447.739 10,486.873 ... 99,8596.502
Kasutatud kirjandus
http://httpd.apache.org/docs/2.0/programs/ab.html
Koostas
Toomas Rohumets A31
02.10.2011
