radio/util/lua_trace2plot.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 """
   5     This script parses debug log events related to Lua memory (de)allocations ( lines
   6     starting wiht "LT: ") and produces a data for gnuplot program
   7
   8     Usage:
   9
  10         ./simu 2>&1 | grep "^LT" | ../radio/util/lua_trace2plot.py > data.plot
  11         gnuplot  -e 'set xtics rotate;  plot "data.plot" using 2:xtic(1) ; pause mouse close'
  12 """
  13
  14 from __future__ import print_function
  15
  16 import sys
  17
  18
  19 if len(sys.argv) > 1:
  20     inputFile = sys.argv[1]
  21     inp = open(inputFile, "r")
  22 else:
  23     inp = sys.stdin
  24
  25
  26 x = 0
  27 memUsed = 0
  28 while True:
  29     skip = True
  30     line = inp.readline()
  31     if len(line) == 0:
  32         break
  33     line = line.strip('\r\n')
  34     if len(line) == 0:
  35         skip = True
  36     if line.startswith("LT:"):
  37         skip = False
  38
  39     if not skip:
  40         parts = line.split()
  41         if len(parts) >= 3:
  42             data = parts[1].strip("[").strip("]").split(",")
  43             alloc = int(data[0])
  44             free = int(data[1])
  45             line = parts[2]
  46             if alloc > 0:
  47                 memUsed += alloc
  48                 print("'%s'\t%d" % (line, memUsed))
  49                 x += 1
  50             if free < 0:
  51                 memUsed += free
  52                 print("'%s'\t%d" % (line, memUsed))
  53                 x += 1
  54
  55 inp.close()