application/hooks/benchmark_log.php

   1 <?php
   2
   3 /**
   4  * Set $config['log_benchmark_to_file'] = '/tmp/ninja_benchmark.log' in
   5  * ninja/application/config/custom/config.php
   6  * to log benchmarking data.
   7  */
   8 class benchmark_log {
   9         private $filename;
  10
  11         /**
  12          * @param $filename string
  13          */
  14         function __construct($filename) {
  15                 $this->filename = $filename;
  16                 Event::add('system.display', array($this, 'log_to_file'));
  17         }
  18
  19         /**
  20          * Collects benchmarking information and prints to file
  21          */
  22         function log_to_file() {
  23                 $benchmark = Benchmark::get(SYSTEM_BENCHMARK.'_total_execution');
  24                 $memory = function_exists('memory_get_usage') ? (memory_get_usage() / 1024 / 1024) : 0;
  25         $sqltime=0.0;
  26         $sqlrows=0;
  27         foreach (Database::$benchmarks as $key => $value){
  28             $sqltime += $value["time"];
  29             $sqlrows += $value["rows"];
  30         }
  31
  32                 $output = array(
  33                         'timestamp' => time(),
  34                         // we want to be able to pipe to cut -d ' ', hence: no spaces in username
  35                         'user' => Auth::instance()->get_user() ? str_replace(' ', '_', Auth::instance()->get_user()->username) : '[not_logged_in]',
  36                         'url' => url::current(true),
  37                         'execution_time' => $benchmark['time'].'s',
  38                         'memory_usage' => number_format($memory, 2).'MB',
  39                         'num_sql' => count(Database::$benchmarks),
  40             'sqltime' => $sqltime,
  41             'sqlrows' => $sqlrows
  42
  43                 );
  44
  45                 file_put_contents($this->filename, implode(' ', $output)."\n", FILE_APPEND);
  46         }
  47 }
  48
  49 if($log_benchmark_to_file = Kohana::config('config.log_benchmark_to_file')) {
  50         new benchmark_log($log_benchmark_to_file);
  51 }