$ ab ab: wrong number of arguments 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 -l Accept variable document length (use this for dynamic pages) -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. -m method Method name -h Display usage information (this message) -I Disable TLS Server Name Indication (SNI) extension -Z ciphersuite Specify SSL/TLS cipher suite (See openssl ciphers) -f protocol Specify SSL/TLS protocol (TLS1, TLS1.1, TLS1.2 or ALL) -E certfile Specify optional client certificate chain and private key
$ ab -n 10000 http://localhost:9500/edu-teacher/listTeachers This is ApacheBench, Version 2.3 <$Revision: 1843412 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/
Concurrency Level: 100 Time taken for tests: 39.782 seconds Complete requests: 10000 Failed requests: 9885 (Connect: 0, Receive: 0, Length: 9885, Exceptions: 0) Total transferred: 59491075 bytes HTML transferred: 56781075 bytes Requests per second: 251.37 [#/sec] (mean) Time per request: 397.820 [ms] (mean) Time per request: 3.978 [ms] (mean, across all concurrent requests) Transfer rate: 1460.38 [Kbytes/sec] received
Connection Times (ms) min mean[+/-sd] median max Connect: 0 1 6.5 0 83 Processing: 44 371 250.6 309 6235 Waiting: 41 366 245.3 306 6117 Total: 44 372 254.0 309 6235
Percentage of the requests served within a certain time (ms) 50% 309 66% 349 75% 386 80% 415 90% 544 95% 710 98% 964 99% 1313 100% 6235 (longest request)
