perf: net_dropmonitor: Fix trace parameter order
[linux-2.6.git] / tools / perf / scripts / python / net_dropmonitor.py
1 # Monitor the system for dropped packets and proudce a report of drop locations and counts
2
3 import os
4 import sys
5
6 sys.path.append(os.environ['PERF_EXEC_PATH'] + \
7                 '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
8
9 from perf_trace_context import *
10 from Core import *
11 from Util import *
12
13 drop_log = {}
14 kallsyms = []
15
16 def get_kallsyms_table():
17         global kallsyms
18         try:
19                 f = open("/proc/kallsyms", "r")
20                 linecount = 0
21                 for line in f:
22                         linecount = linecount+1
23                 f.seek(0)
24         except:
25                 return
26
27
28         j = 0
29         for line in f:
30                 loc = int(line.split()[0], 16)
31                 name = line.split()[2]
32                 j = j +1
33                 if ((j % 100) == 0):
34                         print "\r" + str(j) + "/" + str(linecount),
35                 kallsyms.append({ 'loc': loc, 'name' : name})
36
37         print "\r" + str(j) + "/" + str(linecount)
38         kallsyms.sort()
39         return
40
41 def get_sym(sloc):
42         loc = int(sloc)
43         for i in kallsyms:
44                 if (i['loc'] >= loc):
45                         return (i['name'], i['loc']-loc)
46         return (None, 0)
47
48 def print_drop_table():
49         print "%25s %25s %25s" % ("LOCATION", "OFFSET", "COUNT")
50         for i in drop_log.keys():
51                 (sym, off) = get_sym(i)
52                 if sym == None:
53                         sym = i
54                 print "%25s %25s %25s" % (sym, off, drop_log[i])
55
56
57 def trace_begin():
58         print "Starting trace (Ctrl-C to dump results)"
59
60 def trace_end():
61         print "Gathering kallsyms data"
62         get_kallsyms_table()
63         print_drop_table()
64
65 # called from perf, when it finds a correspoinding event
66 def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm,
67                    skbaddr, location, protocol):
68         slocation = str(location)
69         try:
70                 drop_log[slocation] = drop_log[slocation] + 1
71         except:
72                 drop_log[slocation] = 1