autograph

DESCRIPTION:

Autograph drives httperf, varying the request rate and graphing the output. This exercise provides graphical data showing how the requested resources hold up under an increasing rate, particularly with request to response time and achieved request rate.

Can work with SOAP.

NOTES:

A note on stats, from Zed Shaw: zedshaw.com/essays/programmer_stats.html

PROBLEMS:

• No ‘AcceptEncoding’ support

• Limited to the load generation capabilities of a single server.

SYNOPSIS:

autograph --host example.com --low-rate 5 --high-rate 25 --rate-step 5 --num-conns 25

autograph --host example.com --low-rate 10 --high-rate 50 --rate-step 10 --output-file my_load_test.html

INSTALL:

• Get httperf installed (‘brew install httperf’ if you’ve got homebrew installed)

• Download project and run ‘rake build install’

  nick-stielaus-computer-3:autograph nick$ httperf -h Usage: httperf [-hdvV] [–add-header S] [–burst-length N] [–client N/N]

  [--close-with-reset] [--debug N] [--failure-status N]
  [--help] [--hog] [--http-version S] [--max-connections N]
  [--max-piped-calls N] [--method S] [--no-host-hdr]
  [--num-calls N] [--num-conns N] [--period [d|u|e]T1[,T2]]
  [--port N] [--print-reply [header|body]] [--print-request [header|body]]
  [--rate X] [--recv-buffer N] [--retry-on-failure] [--send-buffer N]
  [--server S] [--server-name S] [--session-cookies]
  [--ssl] [--ssl-ciphers L] [--ssl-no-reuse]
  [--think-timeout X] [--timeout X] [--uri S] [--verbose] [--version]
  [--wlog y|n,file] [--wsess N,N,X] [--wsesslog N,X,file]
  [--wset N,X]
  

  nick-stielaus-computer-3:autograph nick$ autograph Usage: autograph [options]

  --host HOST                  The host to load test
  --port PORT                  The port to load test
  --uris PATH,PATH             A comma separated list of pages to cycle through
  --output-file PATH           Specify the file to output to.
  --output-dir PATH            Specify a directory to write output files to.
  --notes NOTES                Notes to be written to the report.
  --test                       Do not run benchmarks. Use test data to generate reports.
  

  Httperf Knobs:

  --timeout SECONDS            The length in seconds before a request is marked as errored
  --num-call NUMCALLS          The number of calls to make for each connection in the test (defaults to one).
  --num-conns NUMCONNS         The number of connections to make for each test
  --low-rate LOWRATE           The starting rate
  --high-rate HIGHRATE         The highest rate at which to perform a test
  --rate-step RATESTEP         The ammount at which to increment the rate for each interation of the test
  --wsesslog PATH              Path to the wsesslog file.
  

  Common options:

  -h, --help                       Displays this help info
  -v, --verbose                    Verbose output
  

THANKS:

Thanks to

Julian T J Midgley Autobench www.xenoclast.org/autobench/

Ilya Grigorik Autoperf github.com/igrigorik/autoperf/tree

HP httperf www.hpl.hp.com/research/linux/httperf/

LICENSE:

Autograph Copyright © 2009 Nick Stielau

Based on ideas and code from autoperf.rb github.com/igrigorik/autoperf/tree Copyright ©2008 Ilya Grigorik

You can redistribute this under the terms of the Ruby license