77 lines
2.0 KiB
Python
77 lines
2.0 KiB
Python
#!/usr/bin/env python
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# -*- mode: python; indent-tabs-mode: nil; -*- coding: utf-8 -*-
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"""
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diagnostics.py
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Copyright 2019 by Eric Hellman
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Distributable under the GNU General Public License Version 3 or newer.
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"""
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import json
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import resource
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import sys
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from collections import Mapping, Container
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from sys import getsizeof
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import threading
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import cherrypy
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from cherrypy.lib.sessions import RamSession
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from Page import Page
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def thread_info():
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return [t.name for t in threading.enumerate()]
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def deep_getsizeof(o, ids):
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"""Find the memory footprint of a Python object
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This is a recursive function that rills down a Python object graph
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like a dictionary holding nested ditionaries with lists of lists
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and tuples and sets.
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The sys.getsizeof function does a shallow size of only. It counts each
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object inside a container as pointer only regardless of how big it
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really is.
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:param o: the object
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:param ids:
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:return:
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https://github.com/the-gigi/deep/blob/master/deeper.py
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"""
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d = deep_getsizeof
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if id(o) in ids:
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return 0
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r = getsizeof(o)
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ids.add(id(o))
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if isinstance(o, str):
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return r
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if isinstance(o, Mapping):
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try:
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return r + sum(d(k, ids) + d(v, ids) for k, v in list(o.items()))
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except RuntimeError:
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return 'error'
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if isinstance(o, Container):
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return r + sum(d(x, ids) for x in o)
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return r
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class DiagnosticsPage (Page):
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""" Python health. """
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@cherrypy.tools.json_out()
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def index (self, **dummy_kwargs):
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""" return stats. """
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stats = {}
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stats['sessions'] = len(RamSession.cache)
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stats['sessions_storage'] = deep_getsizeof(RamSession.cache, set())
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stats['allocated_blocks'] = sys.getallocatedblocks()
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stats['rusage_self'] = resource.getrusage(resource.RUSAGE_SELF)
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stats['rusage_children'] = resource.getrusage(resource.RUSAGE_CHILDREN)
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stats['thread_info'] = thread_info()
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return stats
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