How can I analyze a file created with pstats.dump_stats(filename) off line?

Question

I have essentially done the following:

import cProfile, pstats, StringIO pr = cProfile.Profile() pr.enable() # ... my code did something ... pr.disable() s = StringIO.StringIO() sortby = 'cumulative' ps = pstats.Stats(pr, stream=s).sort_stats(sortby)  ps.dump_stats('stats.dmp')  # dump the stats to a file named stats.dmp 

So now i have the file named 'stats.dmp' stored offline.

How can i use pstats to analyze this file for human consumption?

Thanks in advance.

Answer 1

Here's what i found out and the Python program I generated. I tested this with a .dmp file made on linux & analyzed on windows xp. It worked FINE. The Python file is named, "analyze_dmp.py".

#!/usr/local/bin/python2.7 # -*- coding: UTF-8 -*- """analyze_dmp.py takes the file INFILEPATH [a pstats dump file] Producing OUTFILEPATH [a human readable python profile] Usage:   analyze_dmp.py INFILEPATH  OUTFILEPATH Example: analyze_dmp.py stats.dmp   stats.log """ # -------------------------------------------------------------------------- # Copyright (c) 2019 Joe Dorocak  (joeCodeswell at gmail dot com) # Distributed under the MIT/X11 software license, see the accompanying # file license.txt or http://www.opensource.org/licenses/mit-license.php. # -------------------------------------------------------------------------- # I added the above License by request here are my research links #    https://meta.stackexchange.com/q/18883/311363 #    https://meta.stackexchange.com/q/128840/311363 #    https://codereview.stackexchange.com/q/10746  import sys, os import cProfile, pstats, StringIO  def analyze_dmp(myinfilepath='stats.dmp', myoutfilepath='stats.log'):     out_stream = open(myoutfilepath, 'w')     ps = pstats.Stats(myinfilepath, stream=out_stream)     sortby = 'cumulative'      ps.strip_dirs().sort_stats(sortby).print_stats(.3)  # plink around with this to get the results you need  NUM_ARGS = 2 def main():     args = sys.argv[1:]     if len(args) != NUM_ARGS or "-h" in args or "--help" in args:         print __doc__         s = raw_input('hit return to quit')         sys.exit(2)     analyze_dmp(myinfilepath=args[0], myoutfilepath=args[1])  if __name__ == '__main__':     main() 

Answer 2

You can try snakeviz https://jiffyclub.github.io/snakeviz

It is a browser based graphical viewer for the output of Python’s cProfile module and an alternative to using the standard library pstats module.

# to install it with pip pip install snakeviz  # once installed, you can use snakeviz to view the file snakeviz /path/to/your/dump/pstat/file 

Here is a sample image for a visualized pstat file you can dump like above.