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1 | #!/usr/bin/perl -w |
2 | # (c) 2009, Tom Zanussi <tzanussi@gmail.com> | |
3 | # Licensed under the terms of the GNU GPL License version 2 | |
4 | ||
5 | # Display r/w activity for all processes | |
6 | ||
7 | # The common_* event handler fields are the most useful fields common to | |
8 | # all events. They don't necessarily correspond to the 'common_*' fields | |
9 | # in the status files. Those fields not available as handler params can | |
10 | # be retrieved via script functions of the form get_common_*(). | |
11 | ||
12 | use 5.010000; | |
13 | use strict; | |
14 | use warnings; | |
15 | ||
16 | use lib "$ENV{'PERF_EXEC_PATH'}/scripts/perl/Perf-Trace-Util/lib"; | |
17 | use lib "./Perf-Trace-Util/lib"; | |
18 | use Perf::Trace::Core; | |
19 | use Perf::Trace::Util; | |
20 | ||
21 | my %reads; | |
22 | my %writes; | |
23 | ||
24 | sub syscalls::sys_exit_read | |
25 | { | |
26 | my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs, | |
27 | $common_pid, $common_comm, | |
28 | $nr, $ret) = @_; | |
29 | ||
30 | if ($ret > 0) { | |
31 | $reads{$common_pid}{bytes_read} += $ret; | |
32 | } else { | |
33 | if (!defined ($reads{$common_pid}{bytes_read})) { | |
34 | $reads{$common_pid}{bytes_read} = 0; | |
35 | } | |
36 | $reads{$common_pid}{errors}{$ret}++; | |
37 | } | |
38 | } | |
39 | ||
40 | sub syscalls::sys_enter_read | |
41 | { | |
42 | my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs, | |
43 | $common_pid, $common_comm, | |
44 | $nr, $fd, $buf, $count) = @_; | |
45 | ||
46 | $reads{$common_pid}{bytes_requested} += $count; | |
47 | $reads{$common_pid}{total_reads}++; | |
48 | $reads{$common_pid}{comm} = $common_comm; | |
49 | } | |
50 | ||
51 | sub syscalls::sys_exit_write | |
52 | { | |
53 | my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs, | |
54 | $common_pid, $common_comm, | |
55 | $nr, $ret) = @_; | |
56 | ||
57 | if ($ret <= 0) { | |
58 | $writes{$common_pid}{errors}{$ret}++; | |
59 | } | |
60 | } | |
61 | ||
62 | sub syscalls::sys_enter_write | |
63 | { | |
64 | my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs, | |
65 | $common_pid, $common_comm, | |
66 | $nr, $fd, $buf, $count) = @_; | |
67 | ||
68 | $writes{$common_pid}{bytes_written} += $count; | |
69 | $writes{$common_pid}{total_writes}++; | |
70 | $writes{$common_pid}{comm} = $common_comm; | |
71 | } | |
72 | ||
73 | sub trace_end | |
74 | { | |
75 | printf("read counts by pid:\n\n"); | |
76 | ||
77 | printf("%6s %20s %10s %10s %10s\n", "pid", "comm", | |
78 | "# reads", "bytes_requested", "bytes_read"); | |
79 | printf("%6s %-20s %10s %10s %10s\n", "------", "--------------------", | |
80 | "-----------", "----------", "----------"); | |
81 | ||
6922c3d7 TZ |
82 | foreach my $pid (sort { ($reads{$b}{bytes_read} || 0) <=> |
83 | ($reads{$a}{bytes_read} || 0) } keys %reads) { | |
84 | my $comm = $reads{$pid}{comm} || ""; | |
85 | my $total_reads = $reads{$pid}{total_reads} || 0; | |
86 | my $bytes_requested = $reads{$pid}{bytes_requested} || 0; | |
87 | my $bytes_read = $reads{$pid}{bytes_read} || 0; | |
bcefe12e TZ |
88 | |
89 | printf("%6s %-20s %10s %10s %10s\n", $pid, $comm, | |
90 | $total_reads, $bytes_requested, $bytes_read); | |
91 | } | |
92 | ||
93 | printf("\nfailed reads by pid:\n\n"); | |
94 | ||
95 | printf("%6s %20s %6s %10s\n", "pid", "comm", "error #", "# errors"); | |
96 | printf("%6s %20s %6s %10s\n", "------", "--------------------", | |
97 | "------", "----------"); | |
98 | ||
6922c3d7 | 99 | my @errcounts = (); |
bcefe12e | 100 | |
6922c3d7 TZ |
101 | foreach my $pid (keys %reads) { |
102 | foreach my $error (keys %{$reads{$pid}{errors}}) { | |
103 | my $comm = $reads{$pid}{comm} || ""; | |
104 | my $errcount = $reads{$pid}{errors}{$error} || 0; | |
105 | push @errcounts, [$pid, $comm, $error, $errcount]; | |
bcefe12e TZ |
106 | } |
107 | } | |
108 | ||
6922c3d7 TZ |
109 | @errcounts = sort { $b->[3] <=> $a->[3] } @errcounts; |
110 | ||
111 | for my $i (0 .. $#errcounts) { | |
112 | printf("%6d %-20s %6d %10s\n", $errcounts[$i][0], | |
113 | $errcounts[$i][1], $errcounts[$i][2], $errcounts[$i][3]); | |
114 | } | |
115 | ||
bcefe12e TZ |
116 | printf("\nwrite counts by pid:\n\n"); |
117 | ||
118 | printf("%6s %20s %10s %10s\n", "pid", "comm", | |
119 | "# writes", "bytes_written"); | |
120 | printf("%6s %-20s %10s %10s\n", "------", "--------------------", | |
121 | "-----------", "----------"); | |
122 | ||
6922c3d7 TZ |
123 | foreach my $pid (sort { ($writes{$b}{bytes_written} || 0) <=> |
124 | ($writes{$a}{bytes_written} || 0)} keys %writes) { | |
125 | my $comm = $writes{$pid}{comm} || ""; | |
126 | my $total_writes = $writes{$pid}{total_writes} || 0; | |
127 | my $bytes_written = $writes{$pid}{bytes_written} || 0; | |
bcefe12e TZ |
128 | |
129 | printf("%6s %-20s %10s %10s\n", $pid, $comm, | |
130 | $total_writes, $bytes_written); | |
131 | } | |
132 | ||
133 | printf("\nfailed writes by pid:\n\n"); | |
134 | ||
135 | printf("%6s %20s %6s %10s\n", "pid", "comm", "error #", "# errors"); | |
136 | printf("%6s %20s %6s %10s\n", "------", "--------------------", | |
137 | "------", "----------"); | |
138 | ||
6922c3d7 | 139 | @errcounts = (); |
bcefe12e | 140 | |
6922c3d7 TZ |
141 | foreach my $pid (keys %writes) { |
142 | foreach my $error (keys %{$writes{$pid}{errors}}) { | |
143 | my $comm = $writes{$pid}{comm} || ""; | |
144 | my $errcount = $writes{$pid}{errors}{$error} || 0; | |
145 | push @errcounts, [$pid, $comm, $error, $errcount]; | |
bcefe12e TZ |
146 | } |
147 | } | |
148 | ||
6922c3d7 TZ |
149 | @errcounts = sort { $b->[3] <=> $a->[3] } @errcounts; |
150 | ||
151 | for my $i (0 .. $#errcounts) { | |
152 | printf("%6d %-20s %6d %10s\n", $errcounts[$i][0], | |
153 | $errcounts[$i][1], $errcounts[$i][2], $errcounts[$i][3]); | |
154 | } | |
155 | ||
bcefe12e TZ |
156 | print_unhandled(); |
157 | } | |
158 | ||
159 | my %unhandled; | |
160 | ||
161 | sub print_unhandled | |
162 | { | |
163 | if ((scalar keys %unhandled) == 0) { | |
164 | return; | |
165 | } | |
166 | ||
167 | print "\nunhandled events:\n\n"; | |
168 | ||
169 | printf("%-40s %10s\n", "event", "count"); | |
170 | printf("%-40s %10s\n", "----------------------------------------", | |
171 | "-----------"); | |
172 | ||
173 | foreach my $event_name (keys %unhandled) { | |
174 | printf("%-40s %10d\n", $event_name, $unhandled{$event_name}); | |
175 | } | |
176 | } | |
177 | ||
178 | sub trace_unhandled | |
179 | { | |
180 | my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs, | |
181 | $common_pid, $common_comm) = @_; | |
182 | ||
183 | $unhandled{$event_name}++; | |
184 | } |