Package: palb
Author:Oliver Tonnhofer <olt@bogosoft.com>Introductionpalbis a HTTP benchmark tool. The command line interface resembles the
Apache benchmark toolab. It lacks the advanced features ofab, but it
supports multiple URLs (from arguments, files, stdin, and Python code).palbusespycurlfor high-performance URL retrieval and is able to handle
more than thousand requests per second with dozens of concurrent requests.
Ifpycurlis not availablepalbwill fall back to Pythonsurllib2.Be sure you havepycurlinstalled if you expect test results with more than
a few hundred requests per second. Check the output of palb:[...]
Using pycurl as URL getter.
[...]InstallationThis package can be installed with easy_install or from the tarball.If you are installing from a tarball, run the following command as an
administrative user:python setup.py installYou need setuptools to install palb. If you don’t have it, you can use
the ez_setup.py script to install it.If you are installing using easy_install, you don’t even need to download
anything as the latest version will be downloaded for you
from the Python package index:easy_install --upgrade palbFor best performance installpycurl(seeIntroduction):easy_install pycurlExample & UsageSimple usage (1 request):% palb http://example.com/Multiple requests (2 concurrent, 10 total requests):% palb -c 2 -n 10 http://example.com/Alternate between multiple URLs:% palb -c 2 -n 100 http://example.com/index.html\
  http://example.com/foo.html http://example.com/bar.htmlGet URLs from file (use-as file name to read from stdin):% cat test.txt
http://example.com/one.html
http://example.com/two.html
% palb -n 20 -f test.txtGet URLs from python code:% cat test.py
def urls(args):
    while True:
        yield 'http://example.com/'
% palb -n 100 -u test:urlsargsis a list with all remaining arguments. Use it to pass options
to your own URL generators.Here is an example output:% palb -c 4 -n 100 -u rndtest:random_urls 'http://localhost:5050/bar/'
This is palb, Version 0.1.1
Copyright (c) 2009 Oliver Tonnhofer <olt@bogosoft.com>
Licensed under MIT License

Using pycurl as URL getter.
Benchmarking (be patient)..... done


Average Document Length: 23067 bytes

Concurrency Level:    4
Time taken for tests: 6.469 seconds
Complete requests:    100
Failed requests:      0
Total transferred:    2306704 bytes
Requests per second:  15.46 [#/sec] (mean)
Time per request:     250.810 [ms] (mean)
Time per request:     62.702 [ms] (mean, across all concurrent requests)
Transfer rate:        348.22 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:       43    46   3.5     45      73
Processing:    56   205  97.2    188     702
Waiting:       90   100  12.6     94     138
Total:        106   251  97.1    234     750

Percentage of the requests served within a certain time (ms)
  50%    239
  66%    257
  75%    285
  80%    289
  90%    313
  95%    382
  98%    613
  99%    717
 100%    768 (longest request)Changelog0.1.1 (2008-04-30)updated docs (palb is now only available as .tar.gz)0.1.0 (2008-04-30)reduce number of open file-handles with pycurl,
allows more concurrent requestsdo not import ez_setup, assume it is installedsupport for python 2.4 (except tests)0.0.2 (2008-04-19)added PyCurl based URLGetterimproved performance (with PyCurl)connection time statistics (with PyCurl)new package structurefix: added*.txtto manifest (LICENSE.txt was missing in 0.0.1 .tar)added tests (nose)0.0.1 (2009-04-13)first release