stages = array();
$this->databaseUsage = array('queries'=>0, 'clock'=>0);
$this->databaseQueryLog = '';
$this->prevUsage = $this->startUsage = $this->getCurrent();
}
/**
* Return an array representing the resource usage as of now.
*/
public function getCurrent()
{
$usage = array(
'files' => count(get_included_files()),
'queries' => $this->databaseUsage['queries'],
'ram' => function_exists('memory_get_usage') ? memory_get_usage() : 0,
'clock' => array_sum(explode(' ', microtime())),
'mysql' => $this->databaseUsage['clock'],
);
if (function_exists('getrusage')) {
$rusage = getrusage();
$usage['cpu'] = $rusage["ru_utime.tv_sec"] + $rusage["ru_stime.tv_sec"]
+ ($rusage["ru_utime.tv_usec"] + $rusage["ru_stime.tv_usec"]) / 1000000;
}
else
$usage['cpu'] = 0;
$usage['other'] = $usage['clock'] - $usage['cpu'] - $usage['mysql'];
return $usage;
}
/**
* Mark the beginning of a new stage of script execution and store usages accordingly.
* @param $stage
*/
public function mark($stage)
{
$usage = $this->getCurrent();
$this->stages[$stage] = $this->delta($this->prevUsage, $usage);
$this->prevUsage = $usage;
}
/**
* Logs query and updates database usage stats.
* @param $query
* @param $usedtime
* @param $gotrows
* @param $gotcolumns
*/
public function logDatabaseQuery($query, $usedtime, $gotrows, $gotcolumns)
{
$this->databaseUsage['clock'] += $usedtime;
if (strlen($this->databaseQueryLog) < 1048576) { // don't keep track of big tests
$rowcolstring = '';
if (is_numeric($gotrows))
$rowcolstring .= ' - ' . $gotrows . ($gotrows == 1 ? ' row' : ' rows');
if (is_numeric($gotcolumns))
$rowcolstring .= ' - ' . $gotcolumns . ($gotcolumns == 1 ? ' column' : ' columns');
$this->databaseQueryLog .= $query . "\n\n" . sprintf('%.2f ms', $usedtime*1000) . $rowcolstring . "\n\n";
}
$this->databaseUsage['queries']++;
}
/**
* Output an (ugly) block of HTML detailing all resource usage and database queries.
*/
public function output()
{
$totaldelta = $this->delta($this->startUsage, $this->getCurrent());
$stages = $this->stages;
$stages['total'] = $totaldelta;
?>
|
Total |
PHP |
MySQL |
Other |
RAM |
|
Time (ms) |
% |
Time (ms) |
% |
File count |
Time (ms) |
% |
Query count |
Time (ms) |
% |
Amount |
% |
$stagedelta) : ?>
|
|
|
|
|
|
|
|
|
|
|
|
|
$value)
$delta[$key] = max(0, $value-@$oldusage[$key]);
return $delta;
}
}