src/applications/console/plugin/DarkConsoleStartupPlugin.php

   1 <?php
   2
   3 final class DarkConsoleStartupPlugin extends DarkConsolePlugin {
   4
   5   public function getName() {
   6     return pht('Startup');
   7   }
   8
   9   public function getDescription() {
  10     return pht('Timing information about the startup sequence.');
  11   }
  12
  13   /**
  14    * @phutil-external-symbol class PhabricatorStartup
  15    */
  16   public function generateData() {
  17     return PhabricatorStartup::getPhases();
  18   }
  19
  20   public function renderPanel() {
  21     $data = $this->getData();
  22
  23     // Compute the time offset and duration of each startup phase.
  24     $prev_key = null;
  25     $init = null;
  26     $phases = array();
  27     foreach ($data as $key => $value) {
  28       if ($init === null) {
  29         $init = $value;
  30       }
  31
  32       $offset = (int)floor(1000 * ($value - $init));
  33
  34       $phases[$key] = array(
  35         'time' => $value,
  36         'offset' => $value - $init,
  37       );
  38
  39
  40       if ($prev_key !== null) {
  41         $phases[$prev_key]['duration'] = $value - $phases[$prev_key]['time'];
  42       }
  43       $prev_key = $key;
  44     }
  45
  46     // Render the phases.
  47     $rows = array();
  48     foreach ($phases as $key => $phase) {
  49       $offset_ms = (int)floor(1000 * $phase['offset']);
  50
  51       if (isset($phase['duration'])) {
  52         $duration_us = (int)floor(1000000 * $phase['duration']);
  53       } else {
  54         $duration_us = null;
  55       }
  56
  57       $rows[] = array(
  58         $key,
  59         pht('+%s ms', new PhutilNumber($offset_ms)),
  60         ($duration_us === null)
  61           ? pht('-')
  62           : pht('%s us', new PhutilNumber($duration_us)),
  63         null,
  64       );
  65     }
  66
  67     return id(new AphrontTableView($rows))
  68       ->setHeaders(
  69         array(
  70           pht('Phase'),
  71           pht('Offset'),
  72           pht('Duration'),
  73           null,
  74         ))
  75       ->setColumnClasses(
  76         array(
  77           '',
  78           'n right',
  79           'n right',
  80           'wide',
  81         ));
  82   }
  83
  84 }