Nose plugins to help profile and determine the slowest tests in your test suite.
This plugin is hosted on PyPI and can be installed with the following command:
pip install nose-perfdump
Nose plugin that provides per-test performance metrics. Useful mainly for finding slow tests in need of optimization. Adds two additional flags to nose.
--with-perfdump - Enables perfdump output
--perfdump-html=[path-to-file] - Dump the full perfdump report to an HTML file
The output of perfdump in the console looks something like the following:
=====================
| 10 SLOWEST SETUPS |
=====================
Per setup breakdown
+----------+--------------------------+-----------------------------------+
| Elapsed | File | Method |
+----------+--------------------------+-----------------------------------+
| 0.00001s | /tests/test_something.py | test_something.AdditionTest.setUp |
| 0.00000s | /tests/test_something.py | test_something.AdditionTest.setUp |
+----------+--------------------------+-----------------------------------+
Per file breakdown
+----------+--------------------------+
| Elapsed | File |
+----------+--------------------------+
| 0.00001s | /tests/test_something.py |
+----------+--------------------------+
Total setup time: 0.00001s
====================
| 10 SLOWEST TESTS |
====================
Per test breakdown
+----------+--------------------------+------------------------------------------------+
| Elapsed | File | Method |
+----------+--------------------------+------------------------------------------------+
| 1.07604s | /tests/test_something.py | test_something.AdditionTest.test_slow_addition |
| 0.00106s | /tests/test_something.py | test_something.AdditionTest.test_fast_addition |
+----------+--------------------------+------------------------------------------------+
Per file breakdown
+----------+--------------------------+
| Elapsed | File |
+----------+--------------------------+
| 1.07710s | /tests/test_something.py |
+----------+--------------------------+
Total test time: 1.07710s
----------------------------------------------------------------------
Ran 2 tests in 1.082s
OK
There is also a command-line interface (CLI) tool provided with nose-perfdump called perfdump-cli that allows for easier querying of the sqlite database.
perfdump > help
Perfdump CLI provides a handful of simple ways to query your
performance data.
The simplest queries are of the form:
[slowest|fastest] [tests|setups]
For example:
perfdump > slowest tests
Prints the slowest 10 tests
Additional grouping of results can be request.
perfdump > slowest tests groupby file
Grouping options include:
file | module | class | function