7 print(header(-status=>500),
15 our $R= '/var/lib/collectd/rrd/chiark.greenend.org.uk';
17 my $self= url(-relative=>1);
19 our (@sections, %sections, %graphs);
21 our @timeranges= (3600, map { $_*86400 } qw(1 7 28), 13*7+1);
24 my ($section, $gname, $basis, $args) = @_;
25 $basis->{Args}= $args;
26 $basis->{Slower}= 0 unless exists $basis->{Slower};
27 $graphs{$section,$gname}= $basis;
28 if (!exists $sections{$section}) {
29 push @sections, $section;
31 push @{ $sections{$section} }, $gname;
34 graph('General', 'Load', { },
36 "DEF:load=$R/load/load.rrd:shortterm:AVERAGE",
37 (map { "DEF:$_=$R/processes/ps_state-$_.rrd:value:AVERAGE" }
38 qw(blocked running stopped paging sleeping zombies)),
39 "AREA:running#88f:running processes:STACK",
40 "AREA:blocked#8f8:blocked processes:STACK",
41 "AREA:paging#f88:paging processes:STACK",
45 graph('General', 'Processes', { },
47 (map { "DEF:$_=$R/processes/ps_state-$_.rrd:value:AVERAGE" }
48 qw(blocked running stopped paging sleeping zombies)),
49 "CDEF:busy=0".(join '', map { ",$_,+" } qw(running blocked paging)),
50 "AREA:sleeping#ccc:sleeping:STACK",
51 "AREA:stopped#00f:stopped:STACK",
52 "AREA:zombies#ff0:zombie:STACK",
53 "AREA:busy#000:busy:STACK",
56 graph('General', 'CPU', { Units => '[%]' },
60 (map { "DEF:$thing$_=$R/cpu-$_/cpu-$thing.rrd:value:AVERAGE" }
62 "CDEF:$thing=0".join('', map { ",$thing$_,+" } (0..7)).",8.0,/";
63 } qw(idle interrupt nice softirq steal system user wait)),
64 "AREA:system#00f:system:STACK",
65 "AREA:wait#f88:wait:STACK",
66 "AREA:nice#ccc:nice:STACK",
67 "AREA:user#080:user:STACK",
68 "AREA:softirq#f0f:softirq:STACK",
69 "AREA:interrupt#ff0:interrupt:STACK",
70 "AREA:steal#0ff:steal:STACK",
73 graph('General', 'Memory', { },
75 (map { "DEF:swap_$_=$R/swap/swap-$_.rrd:value:AVERAGE" }
76 qw(free used cached)),
77 (map { "DEF:mem_$_=$R/memory/memory-$_.rrd:value:AVERAGE" }
78 qw(buffered free used cached)),
79 "CDEF:c_swap_used=0,swap_used,-",
80 "CDEF:c_swap_cached=0,swap_cached,-",
81 "CDEF:c_swap_free=0,swap_free,-",
82 "AREA:c_swap_used#000:used swap",
83 "AREA:c_swap_cached#888:\"cached\" swap:STACK",
84 # "AREA:c_swap_free#88f:free swap:STACK",
85 "AREA:mem_used#ff0:used memory",
86 "AREA:mem_buffered#00f:page cache:STACK",
87 "AREA:mem_cached#008:buffer cache:STACK",
88 "AREA:mem_free#ccc:unused memory:STACK",
91 graph('General', 'Network', { Units => '[/sec; tx +ve; errs x1000]' },
94 ("DEF:tx_$_=$R/interface/if_$_-eth0.rrd:tx:AVERAGE",
95 "DEF:rx_$_=$R/interface/if_$_-eth0.rrd:rx:AVERAGE",
96 "CDEF:mrx_$_=0,rx_$_,-")
97 } qw(octets packets errors)),
99 ("CDEF:${_}_kb=${_}_octets,1024,/",
100 "CDEF:${_}_errsx=${_}_errors,1000,*")
102 "AREA:tx_kb#080:kby",
103 "LINE:tx_packets#0f0:pkts",
104 "LINE:tx_errsx#000:errs",
105 "AREA:mrx_kb#008:kby",
106 "LINE:mrx_packets#00f:pkts",
107 "LINE:mrx_errsx#444:errs",
110 graph('General', 'Users', { },
112 "DEF:users=$R/users/users.rrd:users:AVERAGE",
113 "LINE:users#008:users"
116 foreach my $src (<$R/df/df-*.rrd>) {
121 graph('Disk space', $vol, {
126 (map { "DEF:$_=$src:$_:AVERAGE" } qw(free used)),
127 "AREA:used#000:used:STACK",
128 "AREA:free#88f:free:STACK",
132 if (param('debug')) {
133 print "Content-Type: text/plain\n\n";
140 my $var= $nav->{Variable};
141 $$var= param($nav->{Param});
142 $$var= $nav->{Default} if !defined $$var;
143 die $nav->{Param} unless grep { $_ eq $$var } @{ $nav->{Values} };
144 push @navsettings, $nav;
152 Variable => \$section,
153 Default => $sections[0],
154 Values => [@sections],
155 Show => sub { return $_[0]; }
159 my $gname= param('graph');
161 sub num_param ($$$$) {
162 my ($param,$def,$min,$max) = @_;
163 my $v= param($param);
164 return $def if !defined $v;
165 $v =~ m/^([1-9]\d{0,8})$/ or die;
167 die unless $v >= $min && $v <= $max;
172 my $g= $graphs{$section,$gname};
175 my @args= @{ $g->{Args} };
177 my $width= num_param('w',370,100,1600);
178 my $height= num_param('h',200,100,1600);
180 my $end= param('end');
182 $end =~ m/^(\d+)$/ or die;
183 unshift @args, qw(--end now --start), "end-${end}s";
185 if (param('debug')) {
186 print((join "\n",@args),"\n"); exit 0;
188 print "Content-Type: image/png\n\n";
191 $title .= " $g->{Units}" if $g->{Units};
192 unshift @args, '-t', $title;
194 exec (qw(rrdtool graph - -a PNG --full-size-mode),
195 '-w',$width, '-h',$height,
202 print header(), start_html($title);
204 foreach my $nav (@navsettings) {
206 print $nav->{Desc}, ": ";
208 my $current= $nav->{Variable}; $current= $$current;
209 foreach my $couldbe (@{ $nav->{Values} }) {
211 my $show= $nav->{Show}($couldbe);
212 if ($couldbe eq $current) {
213 print "<b>$show</b>";
215 print "<a href=\"$self";
217 foreach my $nav2 (@navsettings) {
218 my $current2= $nav2->{Variable}; $current2= $$current2;
219 $current2= $couldbe if $nav2->{Param} eq $nav->{Param};
220 next if $current2 eq $nav2->{Default};
221 print $delim2, "$nav2->{Param}=$current2";
224 print "\">$show</a>";
228 $outerdelim= "<br>\n";
235 my $detail= param('detail');
237 my $g= $graphs{$section,$detail};
239 start_page("$detail graphs");
240 foreach my $end (@timeranges[$g->{Slower}..$g->{Slower}+3]) {
241 my $imgurl= "$self?graph=$detail§ion=$section&end=$end";
242 print "<a href=\"$imgurl&w=780&h=800\"><img src=\"$imgurl\"></a>\n";
251 Desc => 'Time interval',
258 return ('Narrower', 'Normal', 'Wider')[$sl];
262 if (param('debug')) {
264 print Dumper(\%graphs);
268 start_page("$section graphs");
270 foreach my $gname (@{ $sections{$section} }) {
271 my $g= $graphs{$section,$gname};
272 print "<a href=\"$self?detail=$gname§ion=$section\">";
273 my $end= $timeranges[$g->{Slower}+$sloth];
274 my $imgurl= "$self?graph=$gname§ion=$section&end=$end";
275 print "<img src=\"$imgurl\"></a>\n";