src/graphit/make_graphs.php

   1 <?php
   2
   3 if(isset($argc)) {
   4         if($argc!=2) {
   5                 error_log("Sorry, wrong arguments, need at least the log file name");
   6                 exit(0);
   7         }
   8 }
   9
  10 echo "argc: $argc\n";
  11 print_r($argv);
  12
  13 // first, load the data from the log
  14 $fh = fopen($argv[1], "r");
  15
  16 // in a way, we're fudging here cause we just add 30 to time all the time
  17 $ta = array();
  18 $time = 0;
  19 $time_begin = 0;
  20 $time_end = 0;
  21 while(($line = fgets($fh)) !== false) {
  22         if($time == 0) {
  23                 $time = ((int)(trim($line)/30))*30;
  24                 $time_begin = $time;
  25         }
  26         else $time += 30;
  27
  28         $epl_line = fgets($fh);
  29
  30         // parse the line... oh crap
  31         $lini = preg_split("/ +/", $epl_line);
  32         $ta[$time]["offset"] = trim($lini[8]);
  33         $ta[$time]["jitter"] = trim($lini[9]);
  34
  35         $time_end = $time;
  36
  37         //print_r($lini);
  38         //print_r($ta);
  39         //exit(0);
  40 }
  41
  42 // create archive 1 - only has 4 hours
  43 $options = array(
  44 "--step", "30",
  45 "--start", "$time_begin",
  46 "DS:offset:GAUGE:30:U:U",
  47 "DS:jitter:GAUGE:30:U:U",
  48 "RRA:AVERAGE:0.5:1:2880"
  49 );
  50
  51 $ret = rrd_create("first_4_hours.rrd", $options);
  52
  53 if(!$ret) {
  54         echo "RRD Creation problem: ".rrd_error()."\n";
  55 }
  56
  57 // create archive 1 everything
  58 $options = array(
  59 "--step", "30",
  60 "--start", "$time_begin",
  61 "DS:offset:GAUGE:30:U:U",
  62 "DS:jitter:GAUGE:30:U:U",
  63 "RRA:AVERAGE:0.5:1:2880",
  64 "RRA:AVERAGE:0.5:7:2880",
  65 "RRA:AVERAGE:0.5:30:2880",
  66 "RRA:AVERAGE:0.5:365:2880"
  67 );
  68
  69 $ret = rrd_create("all_data.rrd", $options);
  70
  71 if(!$ret) {
  72         echo "RRD Creation problem: ".rrd_error()."\n";
  73 }
  74
  75 $end_time_4 = $time_begin + (3600*4);
  76
  77 foreach($ta as $key => $val) {
  78
  79         // first, update all data
  80         $off = $val["offset"];
  81         $jit = $val["jitter"];
  82         $ret = rrd_update("all_data.rrd", array("$key:$off:$jit"));
  83
  84         // if we're previous to 4 hours, update 4hours as well
  85
  86         if($key < $end_time_4) $ret = rrd_update("first_4_hours.rrd", array("$key:$off:$jit"));
  87 }
  88
  89
  90 // do the first four hour graphs
  91 // create first four hours graph of jit
  92 $options = array(
  93 "--start","$time_begin",
  94 "-w","600",
  95 "-h","300",
  96 "-l","-1",
  97 "--end","$end_time_4",
  98 "DEF:4hr_jit=first_4_hours.rrd:jitter:AVERAGE",
  99 "LINE2:4hr_jit#00FF00"
 100 );
 101
 102 // graph of jit
 103 rrd_graph("4hour_first_jit.png", $options);
 104
 105 // create first four hours graph of off
 106 $options = array(
 107 "--start","$time_begin",
 108 "-w","600",
 109 "-h","300",
 110 "-l","-1",
 111 "--end","$end_time_4",
 112 "DEF:4hr_jit=first_4_hours.rrd:offset:AVERAGE",
 113 "LINE2:4hr_jit#00FF00"
 114 );
 115
 116 // graph of offset
 117 rrd_graph("4hour_first_off.png", $options);
 118
 119
 120
 121 $time_last_four = $time_end-(3600*4);
 122
 123 // do the last four hour graphs
 124 // create first four hours graph of jit
 125 $options = array(
 126 "--start","$time_last_four",
 127 "-w","600",
 128 "-h","300",
 129 "--end","$time_end",
 130 "DEF:4hr_jit=all_data.rrd:jitter:AVERAGE",
 131 "LINE2:4hr_jit#00FF00"
 132 );
 133
 134 // graph of jit
 135 rrd_graph("4hour_last_jit.png", $options);
 136
 137 // create first four hours graph of off
 138 $options = array(
 139 "--start","$time_last_four",
 140 "-w","600",
 141 "-h","300",
 142 "--end","$time_end",
 143 "DEF:4hr_jit=all_data.rrd:offset:AVERAGE",
 144 "LINE2:4hr_jit#00FF00"
 145 );
 146
 147 // graph of offset
 148 rrd_graph("4hour_last_off.png", $options);
 149 ?>