Plop: Python Low-Overhead Profiler
Plop is a stack-sampling profiler for Python. Profile collection can be turned on and off in a live process with minimal performance impact.
Plop is currently a work in progress and pretty rough around the edges, so be prepared to run into bugs and extremely unrefined interfaces (which are likely to change in backwards-incompatible ways in future releases).
pip install plop
plop.collector module runs on Python 2.5, 2.6, and 2.7 on Unixy
platforms including Linux, BSD and Mac OS X (must support the
system call). The
plop.viewer module requires Python 2.7 and Tornado
2.x. The viewer can be (and usually is) run separately from the collector.
In the application to be profiled, create a
start(), wait, then
to a file. See
demo/busy_server.py for an example
of how to trigger profiling via an HTTP interface.
To use the viewer, run:
python -m plop.viewer --datadir=demo/profiles
and go to http://localhost:8888
An end-to-end demo is available in the
create_profile.sh will run a server (which talks to itself to
generate load), generate a profile, and shut it down.
will run the viewer app.
The source code is hosted at https://github.com/bdarnell/plop