Tests: Add filtering tests for uncovered cases
[lttng-tools.git] / tests / tools / filtering / babelstats.pl
1 #!/usr/bin/perl
2
3 # Copyright (C) - 2012 Christian Babeux <christian.babeux@efficios.com>
4 #
5 # This program is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License, version 2 only, as
7 # published by the Free Software Foundation.
8 #
9 # This program is distributed in the hope that it will be useful, but WITHOUT
10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 # more details.
13 #
14 # You should have received a copy of the GNU General Public License along with
15 # this program; if not, write to the Free Software Foundation, Inc., 51
16 # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17
18 use strict;
19 use warnings;
20
21 use Getopt::Long;
22
23 my $opt_tracepoint;
24
25 GetOptions('tracepoint=s' => \$opt_tracepoint)
26 or die("Invalid command-line option\n");
27
28 defined($opt_tracepoint)
29 or die("Missing tracepoint, use --tracepoint <name>");
30
31 # Parse an array string.
32 # The format is as follow: [ [index] = value, ... ]
33 sub parse_array
34 {
35 my ($arr_str) = @_;
36 my @array = ();
37
38 # Strip leading and ending brackets, remove whitespace
39 $arr_str =~ s/^\[//;
40 $arr_str =~ s/\]$//;
41 $arr_str =~ s/\s//g;
42
43 my @entries = split(',', $arr_str);
44
45 foreach my $entry (@entries) {
46 if ($entry =~ /^\[(\d+)\]=(\d+)$/) {
47 my $index = $1;
48 my $value = $2;
49 splice @array, $index, 0, $value;
50 }
51 }
52
53 return \@array;
54 }
55
56 # Parse fields values.
57 # Format can either be a name = array or a name = value pair.
58 sub parse_fields
59 {
60 my ($fields_str) = @_;
61 my %fields_hash;
62
63 my $field_name = '[\w\d_]+';
64 my $field_value = '[\w\d_\\\*"]+';
65 my $array = '\[(?:\s\[\d+\]\s=\s\d+,)*\s\[\d+\]\s=\s\d+\s\]';
66
67 # Split the various fields
68 my @fields = ($fields_str =~ /$field_name\s=\s(?:$array|$field_value)/g);
69
70 foreach my $field (@fields) {
71 if ($field =~ /($field_name)\s=\s($array)/) {
72 my $name = $1;
73 my $value = parse_array($2);
74 $fields_hash{$name} = $value;
75 }
76
77 if ($field =~ /($field_name)\s=\s($field_value)/) {
78 my $name = $1;
79 my $value = $2;
80 $fields_hash{$name} = $value;
81 }
82 }
83
84 return \%fields_hash;
85 }
86
87 # Using an event array, merge all the fields
88 # of a particular tracepoint.
89 sub merge_fields
90 {
91 my ($events_ref) = @_;
92 my %merged;
93
94 foreach my $event (@{$events_ref}) {
95 my $tp_provider = $event->{'tp_provider'};
96 my $tp_name = $event->{'tp_name'};
97 my $tracepoint = "$tp_provider:$tp_name";
98
99 foreach my $key (keys %{$event->{'fields'}}) {
100 my $val = $event->{'fields'}->{$key};
101
102 # TODO: Merge of array is not implemented.
103 next if (ref($val) eq 'ARRAY');
104 $merged{$tracepoint}{$key}{$val} = undef;
105 }
106 }
107
108 return \%merged;
109 }
110
111 # Print the minimum and maximum of each fields
112 # for a particular tracepoint.
113 sub print_fields_stats
114 {
115 my ($merged_ref, $tracepoint) = @_;
116
117 return unless ($tracepoint && exists $merged_ref->{$tracepoint});
118
119 foreach my $field (keys %{$merged_ref->{$tracepoint}}) {
120 my @sorted;
121 my @val = keys ($merged_ref->{$tracepoint}->{$field});
122
123 if ($val[0] =~ /^\d+$/) {
124 # Sort numerically
125 @sorted = sort { $a <=> $b } @val;
126 } elsif ($val[0] =~ /^0x[\da-f]+$/i) {
127 # Convert the hex values and sort numerically
128 @sorted = sort { hex($a) <=> hex($b) } @val;
129 } else {
130 # Fallback, alphabetical sort
131 @sorted = sort { lc($a) cmp lc($b) } @val;
132 }
133
134 my $min = $sorted[0];
135 my $max = $sorted[-1];
136
137 print "$field $min $max\n";
138 }
139 }
140
141 my @events;
142
143 while (<>)
144 {
145 my $timestamp = '\[(.*)\]';
146 my $elapsed = '\((.*)\)';
147 my $hostname = '.*';
148 my $pname = '.*';
149 my $pid = '\d+';
150 my $tp_provider = '.*';
151 my $tp_name = '.*';
152 my $cpu_info = '{\scpu_id\s=\s(\d+)\s\}';
153 my $fields = '{(.*)}';
154
155 # Parse babeltrace text output format
156 if (/$timestamp\s$elapsed\s($hostname):($pname):($pid)\s($tp_provider):($tp_name):\s$cpu_info,\s$fields/) {
157 my %event_hash;
158
159 $event_hash{'timestamp'} = $1;
160 $event_hash{'elapsed'} = $2;
161 $event_hash{'hostname'} = $3;
162 $event_hash{'pname'} = $4;
163 $event_hash{'pid'} = $5;
164 $event_hash{'tp_provider'} = $6;
165 $event_hash{'tp_name'} = $7;
166 $event_hash{'cpu_id'} = $8;
167 $event_hash{'fields'} = parse_fields($9);
168
169 push @events, \%event_hash;
170 }
171 }
172
173 my %merged_fields = %{merge_fields(\@{events})};
174 print_fields_stats(\%merged_fields, $opt_tracepoint);
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