modules/resources.py

   1 # Erebus IRC bot - Author: Erebus Team
   2 # vim: fileencoding=utf-8
   3 # resource-usage module
   4 # This file is released into the public domain; see http://unlicense.org/
   5
   6 # module info
   7 modinfo = {
   8         'author': 'Erebus Team',
   9         'license': 'public domain',
  10         'compatible': [0],
  11         'depends': [],
  12         'softdeps': ['help'],
  13 }
  14
  15 # preamble
  16 import modlib
  17 lib = modlib.modlib(__name__)
  18 modstart = lib.modstart
  19 modstop = lib.modstop
  20
  21 # module code
  22 import resource
  23
  24 @lib.hook(needchan=False, wantchan=True, glevel=lib.MANAGER)
  25 @lib.help(None, "show RAM usage")
  26 def ram(bot, user, chan, realtarget, *args):
  27         if chan is not None: replyto = chan
  28         else: replyto = user
  29
  30         try:
  31                 res = resource.getrusage(resource.RUSAGE_BOTH)
  32         except:
  33                 res = resource.getrusage(resource.RUSAGE_SELF)
  34
  35         bot.fastmsg(replyto, "Memory usage (MiB): %r" % (res.ru_maxrss/1024.0))
  36
  37 @lib.hook(needchan=False, wantchan=True, glevel=lib.MANAGER)
  38 @lib.help(None, "show resource usage")
  39 def resources(bot, user, chan, realtarget, *args):
  40         if chan is not None: replyto = chan
  41         else: replyto = user
  42
  43         try:
  44                 res = resource.getrusage(resource.RUSAGE_BOTH)
  45         except:
  46                 res = resource.getrusage(resource.RUSAGE_SELF)
  47
  48         bot.slowmsg(replyto, "Resource usage:")
  49         for i, v in (
  50                 ('utime (s)', res.ru_utime),
  51                 ('stime (s)', res.ru_stime),
  52                 ('memory (MiB)', (res.ru_maxrss/1024.0)),
  53                 ('I/O (blocks)', res.ru_inblock+res.ru_oublock),
  54                 ('page faults', res.ru_majflt),
  55                 ('signals', res.ru_nsignals),
  56                 ('context switches (voluntary)', res.ru_nvcsw),
  57                 ('context switches (involuntary)', res.ru_nivcsw),
  58         ):
  59                 bot.slowmsg(replyto, "- %s: %r" % (i, v))
  60         bot.slowmsg(replyto, "EOL.")