Apache Bench is a cool tool to fire several http call against a server.
Installation
sudo apt-get install -y apache2
Simple Benchmark Example
ab -n100000 -c1000 http://localhost:8080/
-n = total number of calls
-c = number of concurrent requests
Example: Multiple Apache Bench Calls With Increasing Concurrency
cat > ab.sh <<-"EOF"
num=10000
array=(10 50 100 500 1000)
for i in ${array[@]}; do
ab -n $num -c $i http://localhost/ > result$i.txt
done
EOF
chmod +x ./ab.sh
./ab.sh
ls
Multiple Apache Bench Calls Example With Local Solr
#!/bin/bash echo "" > solr_results.log for C in 2 4 8 16 32 64 128 256 512 do N=$(($C*1000)) echo "ab -n$N -c$C" >> solr_results.log ab -n$N -c$C 'http://solr:8080/solr/select?q=&qf= &fq= : &start=0&rows=20' >> solr_results.log done
man ab
AB(1) ab AB(1)
NAME
ab - Apache HTTP server benchmarking tool
SYNOPSIS
ab [ -A auth-username:password ] [ -b windowsize ] [ -c concurrency ]
[ -C cookie-name=value ] [ -d ] [ -e csv-file ]
[ -f protocol ] [ -g gnuplot-file ] [ -h ] [ -H custom-header ] [ -i ] [ -k ]
[ -n requests ] [ -p POST-file ] [ -P proxy-auth-username:password ] [ -q ]
[ -r ] [ -s ] [ -S ] [ -t timelimit ] [ -T content-type ] [ -u PUT-file ]
[ -v verbosity] [ -V ] [ -w ] [ -x -attributes ]
[ -Z ciphersuite ] [http[s]://]hostname[:port]/path
SUMMARY
ab is a tool for benchmarking your Apache Hypertext Transfer Protocol (HTTP)
server. It is designed to give you an impression of how your current Apache
installation performs. This especially shows you how many requests per second
your Apache installation is capable of serving.
OPTIONS
-A auth-username:password
Supply BASIC Authentication credentials to the server. The username and
password are separated by a single : and sent on the wire base64 encoded.
The string is sent regardless of whether the server needs it (i.e.,
has sent an 401 authentication needed).
-b windowsize
Size of TCP send/receive buffer, in bytes.
-c concurrency
Number of multiple requests to perform at a time. Default is one request at
a time.
-C cookie-name=value
Add a Cookie: line to the request. The argument is typically in the form
of a name=value pair. This field is repeatable.
-d Do not display the "percentage served within XX [ms] table". (legacy support
).
-e csv-file
Write a Comma separated value (CSV) file which contains for each percentage
(from 1% to 100%) the time (in milliseconds) it took to serve that
percentage of the requests. This is usually more useful than the 'gnuplot'
file; as the results are already 'binned'.
-f protocol
Specify SSL/TLS protocol (SSL2, SSL3, TLS1, or ALL).
-g gnuplot-file
Write all measured values out as a 'gnuplot' or TSV (Tab separate values) file.
This file can easily be imported into packages like Gnuplot, IDL, Mathematica,
Igor or even Excel. The labels are on the first line of the file.
-h Display usage information.
-H custom-header
Append extra headers to the request. The argument is typically in the form
of a valid header line, containing a colon-separated field-value pair (i.e.,
"Accept-Encoding: zip/zop;8bit").
-i Do HEAD requests instead of GET.
-k Enable the HTTP KeepAlive feature, i.e., perform multiple requests
within one HTTP session. Default is no KeepAlive.
-n requests
Number of requests to perform for the benchmarking session. The default is to
just perform a single request which usually leads to non-representative
benchmarking results.
-p POST-file
File containing data to POST. Remember to also set -T.
-P proxy-auth-username:password
Supply BASIC Authentication credentials to a proxy en-route. The username and
password are separated by a single : and sent on the wire base64 encoded.
The string is sent regardless of whether the proxy needs it (i.e.,
has sent an 407 proxy authentication needed).
-q When processing more than 150 requests, ab outputs a progress count on stderr
every 10% or 100 requests or so. The -q flag will suppress these messages.
-r Don't exit on socket receive errors.
-s When compiled in (ab -h will show you) use the SSL protected https rather
than the http protocol. This feature is experimental and very rudimentary.
You probably do not want to use it.
-S Do not display the median and standard deviation values, nor display the
warning/error messages when the average and median are more than one or two
times the standard deviation apart. And default to the min/avg/max
values. (legacy support).
-t timelimit
Maximum number of seconds to spend for benchmarking. This implies a -n 50000
internally. Use this to benchmark the server within a fixed total amount of
time. Per default there is no timelimit.
-T content-type
Content-type header to use for POST/PUT data, eg. application/x-www-form-
urlencoded. Default: text/plain.
-u PUT-file
File containing data to PUT. Remember to also set -T.
-v verbosity
Set verbosity level - 4 and above prints information on headers, 3 and above
prints response codes (404, 200, etc.), 2 and above prints warnings and info.
-V Display version number and exit.
-w Print out results in HTML tables. Default table is two columns wide, with a
white background.
-x
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