Hi,
I always wanted to be able to compare the performance of two Python
versions using timeit *in a single command*. So I just implemented it!
I added --python and --compare-to options.
Real example to show the new "timeit --compared-to" feature:
---
$ export PYTHONPATH=~/prog/GIT/perf
$ ./python-resize -m perf timeit --inherit-environ=PYTHONPATH
--compare-to=./python-ref -s 'x = range(1000); d={}' 'for i in x:
d[i]=i; del d[i];' --rigorous
python-ref: ........................................ 77.6 us +- 1.8 us
python-resize: ........................................ 74.8 us +- 1.9 us
Median +- std dev: [python-ref] 77.6 us +- 1.8 us -> [python-resize]
74.8 us +- 1.9 us: 1.04x faster
---
http://bugs.python.org/issue28199#msg277755
Changes between 0.7.11 and 0.7.12:
* Add ``--python`` command line option
* ``timeit``: add ``--name``, ``--inner-loops`` and ``--compare-to``
options
* TextRunner don't set CPU affinity of the main process, only on worker
processes. It may help a little bit when using NOHZ_FULL.
* metadata: add ``boot_time`` and ``uptime`` on Linux
* metadata: add idle driver to ``cpu_config``
Victor
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