Lightweight profiling tool to detect performance BottleNecks in Python code.
Python Shell
Switch branches/tags
Nothing to show
Permalink
Failed to load latest commit information.
.gitignore
README.md
bn.py
install.sh
setup.py
upload.sh

README.md

bn

Lightweight profiling tool to detect performance BottleNecks in Python code.

Hence the name: bn - BottleNeck.
And you know keys B and N are very comfortable to type quickly in a row.

Usage:

bn('loop')
for item in generator:

    bn('rabbit')
    # code of rabbit

    bn('turtle')
    # code of turtle

    bn('loop')

if bn.total > 1.0:
    logging.info(bn)

Result:

TOTAL=22.2632, turtle=20.6403, rabbit=1.6209, loop=0.0020
#
# This config is default in bn>=0.1.5:
# Bn(total_key='TOTAL', format='{key}={seconds:.4f}', sep=', ')

# OR:

22.2632    TOTAL
20.6403    turtle
 1.6209    rabbit
 0.0020    loop
#
# This config is default in bn<=0.1.4:
# Bn(total_key='TOTAL', format='{seconds:>10.4f}    {key}', sep='\n')

Install:

pip install bn

Scope:

# Global "bn" is useful to profile cross-module without passing "bn" explicitly.
from bn import bn
bn.format = custom_format

# Scoped "Bn" is useful to have multiple independent profilers.
from bn import Bn
def action():
    bn = Bn(format=custom_format)

bn version 0.1.5
Copyright (C) 2013 by Denis Ryzhkov denisr@denisr.com
MIT License, see http://opensource.org/licenses/MIT