/**
* PerformanceSnapshot constructor.
* @param PerformanceInfoInterface|null $prev
*/
public function __construct(PerformanceInfoInterface $prev = null)
{
$timePassed = 0;
$creationTime = Utils::getMicroTime();
if ($prev instanceof PerformanceInfoInterface) {
$timePassed = bcsub($creationTime, $prev->creationTime(), 4);
} else {
$prev = new NullPerformanceInfoObject();
}
$numClassesDeclared = count(get_declared_classes());
$numFilesIncluded = count(get_included_files());
$this->numClassesDeclaredSincePreviousSnapShot = $numClassesDeclared - $prev->numClassesDeclared();
$this->numFilesIncludedSincePreviousSnapShot = $numFilesIncluded - $prev->numFilesIncluded();
$memoryAllocated = Utils::toMegaBytes(memory_get_usage());
$this->memoryAllocatedDiff = bcsub($memoryAllocated, $prev->memoryAllocated(), 4);
parent::__construct($creationTime, $timePassed, $numClassesDeclared, $numFilesIncluded, $memoryAllocated);
}
/**
* @param PerformanceInfoInterface $performanceInfo
* @return string
*/
private function informAboutPeakingMemoryAllocation(PerformanceInfoInterface $performanceInfo)
{
$peakMemAllocation = $performanceInfo->peakMemoryAllocated();
if ($peakMemAllocation / $performanceInfo->memoryAllocated() > 1.00001 && $this->highestMemoryPeak == $peakMemAllocation) {
// We found peak mem allocation in a snapshot
$message = 'Memory consumption peaked at "' . $this->nameOfSnapShotThatHasMemoryPeak . '" with a total allocation of <strong>' . $peakMemAllocation . '</strong> mb';
} else {
$message = 'Peak memory allocation was <strong>' . $peakMemAllocation . '</strong> mb';
}
return '<div class="footer"><em>' . $message . '</em></div>';
}