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1#!/usr/bin/perl -w
2# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
3# Licensed under the terms of the GNU GPL License version 2
4
5# read/write top
6#
7# Periodically displays system-wide r/w call activity, broken down by
8# pid. If an [interval] arg is specified, the display will be
9# refreshed every [interval] seconds. The default interval is 3
10# seconds.
11
12use 5.010000;
13use strict;
14use warnings;
15
16use lib "$ENV{'PERF_EXEC_PATH'}/scripts/perl/Perf-Trace-Util/lib";
17use lib "./Perf-Trace-Util/lib";
18use Perf::Trace::Core;
19use Perf::Trace::Util;
20
21my $default_interval = 3;
22my $nlines = 20;
23my $print_thread;
24my $print_pending = 0;
25
26my %reads;
27my %writes;
28
29my $interval = shift;
30if (!$interval) {
31 $interval = $default_interval;
32}
33
34sub syscalls::sys_exit_read
35{
36 my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
37 $common_pid, $common_comm,
38 $nr, $ret) = @_;
39
40 print_check();
41
42 if ($ret > 0) {
43 $reads{$common_pid}{bytes_read} += $ret;
44 } else {
45 if (!defined ($reads{$common_pid}{bytes_read})) {
46 $reads{$common_pid}{bytes_read} = 0;
47 }
48 $reads{$common_pid}{errors}{$ret}++;
49 }
50}
51
52sub syscalls::sys_enter_read
53{
54 my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
55 $common_pid, $common_comm,
56 $nr, $fd, $buf, $count) = @_;
57
58 print_check();
59
60 $reads{$common_pid}{bytes_requested} += $count;
61 $reads{$common_pid}{total_reads}++;
62 $reads{$common_pid}{comm} = $common_comm;
63}
64
65sub syscalls::sys_exit_write
66{
67 my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
68 $common_pid, $common_comm,
69 $nr, $ret) = @_;
70
71 print_check();
72
73 if ($ret <= 0) {
74 $writes{$common_pid}{errors}{$ret}++;
75 }
76}
77
78sub syscalls::sys_enter_write
79{
80 my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
81 $common_pid, $common_comm,
82 $nr, $fd, $buf, $count) = @_;
83
84 print_check();
85
86 $writes{$common_pid}{bytes_written} += $count;
87 $writes{$common_pid}{total_writes}++;
88 $writes{$common_pid}{comm} = $common_comm;
89}
90
91sub trace_begin
92{
93 $SIG{ALRM} = \&set_print_pending;
94 alarm 1;
95}
96
97sub trace_end
98{
99 print_unhandled();
100 print_totals();
101}
102
103sub print_check()
104{
105 if ($print_pending == 1) {
106 $print_pending = 0;
107 print_totals();
108 }
109}
110
111sub set_print_pending()
112{
113 $print_pending = 1;
114 alarm $interval;
115}
116
117sub print_totals
118{
119 my $count;
120
121 $count = 0;
122
123 clear_term();
124
125 printf("\nread counts by pid:\n\n");
126
127 printf("%6s %20s %10s %10s %10s\n", "pid", "comm",
128 "# reads", "bytes_req", "bytes_read");
129 printf("%6s %-20s %10s %10s %10s\n", "------", "--------------------",
130 "----------", "----------", "----------");
131
132 foreach my $pid (sort { ($reads{$b}{bytes_read} || 0) <=>
133 ($reads{$a}{bytes_read} || 0) } keys %reads) {
134 my $comm = $reads{$pid}{comm} || "";
135 my $total_reads = $reads{$pid}{total_reads} || 0;
136 my $bytes_requested = $reads{$pid}{bytes_requested} || 0;
137 my $bytes_read = $reads{$pid}{bytes_read} || 0;
138
139 printf("%6s %-20s %10s %10s %10s\n", $pid, $comm,
140 $total_reads, $bytes_requested, $bytes_read);
141
142 if (++$count == $nlines) {
143 last;
144 }
145 }
146
147 $count = 0;
148
149 printf("\nwrite counts by pid:\n\n");
150
151 printf("%6s %20s %10s %13s\n", "pid", "comm",
152 "# writes", "bytes_written");
153 printf("%6s %-20s %10s %13s\n", "------", "--------------------",
154 "----------", "-------------");
155
156 foreach my $pid (sort { ($writes{$b}{bytes_written} || 0) <=>
157 ($writes{$a}{bytes_written} || 0)} keys %writes) {
158 my $comm = $writes{$pid}{comm} || "";
159 my $total_writes = $writes{$pid}{total_writes} || 0;
160 my $bytes_written = $writes{$pid}{bytes_written} || 0;
161
162 printf("%6s %-20s %10s %13s\n", $pid, $comm,
163 $total_writes, $bytes_written);
164
165 if (++$count == $nlines) {
166 last;
167 }
168 }
169
170 %reads = ();
171 %writes = ();
172}
173
174my %unhandled;
175
176sub print_unhandled
177{
178 if ((scalar keys %unhandled) == 0) {
179 return;
180 }
181
182 print "\nunhandled events:\n\n";
183
184 printf("%-40s %10s\n", "event", "count");
185 printf("%-40s %10s\n", "----------------------------------------",
186 "-----------");
187
188 foreach my $event_name (keys %unhandled) {
189 printf("%-40s %10d\n", $event_name, $unhandled{$event_name});
190 }
191}
192
193sub trace_unhandled
194{
195 my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
196 $common_pid, $common_comm) = @_;
197
198 $unhandled{$event_name}++;
199}
1#!/usr/bin/perl -w
2# (c) 2010, Tom Zanussi <tzanussi@gmail.com>
3# Licensed under the terms of the GNU GPL License version 2
4
5# read/write top
6#
7# Periodically displays system-wide r/w call activity, broken down by
8# pid. If an [interval] arg is specified, the display will be
9# refreshed every [interval] seconds. The default interval is 3
10# seconds.
11
12use 5.010000;
13use strict;
14use warnings;
15
16use lib "$ENV{'PERF_EXEC_PATH'}/scripts/perl/Perf-Trace-Util/lib";
17use lib "./Perf-Trace-Util/lib";
18use Perf::Trace::Core;
19use Perf::Trace::Util;
20
21my $default_interval = 3;
22my $nlines = 20;
23my $print_thread;
24my $print_pending = 0;
25
26my %reads;
27my %writes;
28
29my $interval = shift;
30if (!$interval) {
31 $interval = $default_interval;
32}
33
34sub syscalls::sys_exit_read
35{
36 my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
37 $common_pid, $common_comm,
38 $nr, $ret) = @_;
39
40 print_check();
41
42 if ($ret > 0) {
43 $reads{$common_pid}{bytes_read} += $ret;
44 } else {
45 if (!defined ($reads{$common_pid}{bytes_read})) {
46 $reads{$common_pid}{bytes_read} = 0;
47 }
48 $reads{$common_pid}{errors}{$ret}++;
49 }
50}
51
52sub syscalls::sys_enter_read
53{
54 my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
55 $common_pid, $common_comm,
56 $nr, $fd, $buf, $count) = @_;
57
58 print_check();
59
60 $reads{$common_pid}{bytes_requested} += $count;
61 $reads{$common_pid}{total_reads}++;
62 $reads{$common_pid}{comm} = $common_comm;
63}
64
65sub syscalls::sys_exit_write
66{
67 my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
68 $common_pid, $common_comm,
69 $nr, $ret) = @_;
70
71 print_check();
72
73 if ($ret <= 0) {
74 $writes{$common_pid}{errors}{$ret}++;
75 }
76}
77
78sub syscalls::sys_enter_write
79{
80 my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
81 $common_pid, $common_comm,
82 $nr, $fd, $buf, $count) = @_;
83
84 print_check();
85
86 $writes{$common_pid}{bytes_written} += $count;
87 $writes{$common_pid}{total_writes}++;
88 $writes{$common_pid}{comm} = $common_comm;
89}
90
91sub trace_begin
92{
93 $SIG{ALRM} = \&set_print_pending;
94 alarm 1;
95}
96
97sub trace_end
98{
99 print_unhandled();
100 print_totals();
101}
102
103sub print_check()
104{
105 if ($print_pending == 1) {
106 $print_pending = 0;
107 print_totals();
108 }
109}
110
111sub set_print_pending()
112{
113 $print_pending = 1;
114 alarm $interval;
115}
116
117sub print_totals
118{
119 my $count;
120
121 $count = 0;
122
123 clear_term();
124
125 printf("\nread counts by pid:\n\n");
126
127 printf("%6s %20s %10s %10s %10s\n", "pid", "comm",
128 "# reads", "bytes_req", "bytes_read");
129 printf("%6s %-20s %10s %10s %10s\n", "------", "--------------------",
130 "----------", "----------", "----------");
131
132 foreach my $pid (sort { ($reads{$b}{bytes_read} || 0) <=>
133 ($reads{$a}{bytes_read} || 0) } keys %reads) {
134 my $comm = $reads{$pid}{comm} || "";
135 my $total_reads = $reads{$pid}{total_reads} || 0;
136 my $bytes_requested = $reads{$pid}{bytes_requested} || 0;
137 my $bytes_read = $reads{$pid}{bytes_read} || 0;
138
139 printf("%6s %-20s %10s %10s %10s\n", $pid, $comm,
140 $total_reads, $bytes_requested, $bytes_read);
141
142 if (++$count == $nlines) {
143 last;
144 }
145 }
146
147 $count = 0;
148
149 printf("\nwrite counts by pid:\n\n");
150
151 printf("%6s %20s %10s %13s\n", "pid", "comm",
152 "# writes", "bytes_written");
153 printf("%6s %-20s %10s %13s\n", "------", "--------------------",
154 "----------", "-------------");
155
156 foreach my $pid (sort { ($writes{$b}{bytes_written} || 0) <=>
157 ($writes{$a}{bytes_written} || 0)} keys %writes) {
158 my $comm = $writes{$pid}{comm} || "";
159 my $total_writes = $writes{$pid}{total_writes} || 0;
160 my $bytes_written = $writes{$pid}{bytes_written} || 0;
161
162 printf("%6s %-20s %10s %13s\n", $pid, $comm,
163 $total_writes, $bytes_written);
164
165 if (++$count == $nlines) {
166 last;
167 }
168 }
169
170 %reads = ();
171 %writes = ();
172}
173
174my %unhandled;
175
176sub print_unhandled
177{
178 if ((scalar keys %unhandled) == 0) {
179 return;
180 }
181
182 print "\nunhandled events:\n\n";
183
184 printf("%-40s %10s\n", "event", "count");
185 printf("%-40s %10s\n", "----------------------------------------",
186 "-----------");
187
188 foreach my $event_name (keys %unhandled) {
189 printf("%-40s %10d\n", $event_name, $unhandled{$event_name});
190 }
191}
192
193sub trace_unhandled
194{
195 my ($event_name, $context, $common_cpu, $common_secs, $common_nsecs,
196 $common_pid, $common_comm) = @_;
197
198 $unhandled{$event_name}++;
199}