Support for stacked profiler analysis

include/conversation.php

@@ -22,7 +22,6 @@
 use Friendica\App;
 use Friendica\Content\ContactSelector;
 use Friendica\Content\Feature;
-use Friendica\Content\Text\BBCode;
 use Friendica\Core\Hook;
 use Friendica\Core\Logger;
 use Friendica\Core\Protocol;
@@ -34,7 +33,6 @@ use Friendica\DI;
 use Friendica\Model\Contact;
 use Friendica\Model\Item;
 use Friendica\Model\Post;
-use Friendica\Model\Profile;
 use Friendica\Model\Tag;
 use Friendica\Model\Verb;
 use Friendica\Object\Post as PostObject;
@@ -56,6 +54,7 @@ use Friendica\Util\XML;
  */
 function localize_item(&$item)
 {
+	DI::profiler()->startRecording('rendering');
 	/// @todo The following functionality needs to be cleaned up.
 	if (!empty($item['verb'])) {
 		$activity = DI::activity();
@@ -65,9 +64,11 @@ function localize_item(&$item)
 		if (stristr($item['verb'], Activity::POKE)) {
 			$verb = urldecode(substr($item['verb'], strpos($item['verb'],'#') + 1));
 			if (!$verb) {
+				DI::profiler()->stopRecording();
 				return;
 			}
 			if ($item['object-type'] == "" || $item['object-type'] !== Activity\ObjectType::PERSON) {
+				DI::profiler()->stopRecording();
 				return;
 			}
 
@@ -120,6 +121,7 @@ function localize_item(&$item)
 				'verb', 'object-type', 'resource-id', 'body', 'plink'];
 			$obj = Post::selectFirst($fields, ['uri' => $item['parent-uri']]);
 			if (!DBA::isResult($obj)) {
+				DI::profiler()->stopRecording();
 				return;
 			}
 
@@ -177,6 +179,7 @@ function localize_item(&$item)
 			'network' => $item['author-network'], 'url' => $item['author-link']];
 		$item['plink'] = Contact::magicLinkByContact($author, $item['plink']);
 	}
+	DI::profiler()->stopRecording();
 }
 
 /**
@@ -263,6 +266,7 @@ function conv_get_blocklist()
  */
 function conversation(App $a, array $items, $mode, $update, $preview = false, $order = 'commented', $uid = 0)
 {
+	DI::profiler()->startRecording('rendering');
 	$page = DI::page();
 
 	$page->registerFooterScript(Theme::getPathForFile('asset/typeahead.js/dist/typeahead.bundle.js'));
@@ -603,6 +607,7 @@ function conversation(App $a, array $items, $mode, $update, $preview = false, $o
 		'$dropping' => ($page_dropping ? DI::l10n()->t('Delete Selected Items') : False),
 	]);
 
+	DI::profiler()->stopRecording();
 	return $o;
 }
 
@@ -616,6 +621,7 @@ function conversation(App $a, array $items, $mode, $update, $preview = false, $o
  * @return array items with parents and comments
  */
 function conversation_fetch_comments($thread_items, bool $pinned, array $activity) {
+	DI::profiler()->startRecording('rendering');
 	$comments = [];
 
 	while ($row = Post::fetch($thread_items)) {
@@ -693,6 +699,7 @@ function conversation_fetch_comments($thread_items, bool $pinned, array $activit
 
 	DBA::close($thread_items);
 
+	DI::profiler()->stopRecording();
 	return $comments;
 }
 
@@ -711,6 +718,7 @@ function conversation_fetch_comments($thread_items, bool $pinned, array $activit
  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  */
 function conversation_add_children(array $parents, $block_authors, $order, $uid) {
+	DI::profiler()->startRecording('rendering');
 	if (count($parents) > 1) {
 		$max_comments = DI::config()->get('system', 'max_comments', 100);
 	} else {
@@ -753,6 +761,7 @@ function conversation_add_children(array $parents, $block_authors, $order, $uid)
 
 	$items = conv_sort($items, $order);
 
+	DI::profiler()->stopRecording();
 	return $items;
 }
 
@@ -768,6 +777,7 @@ function conversation_add_children(array $parents, $block_authors, $order, $uid)
  * @return array
  */
 function conversation_fetch_items(array $parent, array $items, array $condition, bool $block_authors, array $params, array $activity) {
+	DI::profiler()->startRecording('rendering');
 	if ($block_authors) {
 		$condition[0] .= " AND NOT `author-hidden`";
 	}
@@ -779,11 +789,13 @@ function conversation_fetch_items(array $parent, array $items, array $condition,
 	if (count($comments) != 0) {
 		$items = array_merge($items, $comments);
 	}
+	DI::profiler()->stopRecording();
 	return $items;
 }
 
 function item_photo_menu($item)
 {
+	DI::profiler()->startRecording('rendering');
 	$sub_link = '';
 	$poke_link = '';
 	$contact_url = '';
@@ -882,6 +894,7 @@ function item_photo_menu($item)
 			$o .= '<li role="menuitem"><a href="' . $v . '">' . $k . '</a></li>' . PHP_EOL;
 		}
 	}
+	DI::profiler()->stopRecording();
 	return $o;
 }
 
@@ -980,6 +993,7 @@ function builtin_activity_puller(array $activity, array &$conv_responses)
  * @throws \Friendica\Network\HTTPException\InternalServerErrorException
  */
 function format_activity(array $links, $verb, $id) {
+	DI::profiler()->startRecording('rendering');
 	$o = '';
 	$expanded = '';
 	$phrase = '';
@@ -1059,11 +1073,13 @@ function format_activity(array $links, $verb, $id) {
 	]);
 	$o .= $expanded;
 
+	DI::profiler()->stopRecording();
 	return $o;
 }
 
 function status_editor(App $a, $x, $notes_cid = 0, $popup = false)
 {
+	DI::profiler()->startRecording('rendering');
 	$o = '';
 
 	$geotag = !empty($x['allow_location']) ? Renderer::replaceMacros(Renderer::getMarkupTemplate('jot_geotag.tpl'), []) : '';
@@ -1151,6 +1167,7 @@ function status_editor(App $a, $x, $notes_cid = 0, $popup = false)
 		$o = '<div id="jot-popup" style="display: none;">' . $o . '</div>';
 	}
 
+	DI::profiler()->stopRecording();
 	return $o;
 }
 
@@ -1164,6 +1181,7 @@ function status_editor(App $a, $x, $notes_cid = 0, $popup = false)
  */
 function get_item_children(array &$item_list, array $parent, $recursive = true)
 {
+	DI::profiler()->startRecording('rendering');
 	$children = [];
 	foreach ($item_list as $i => $item) {
 		if ($item['gravity'] != GRAVITY_PARENT) {
@@ -1185,6 +1203,7 @@ function get_item_children(array &$item_list, array $parent, $recursive = true)
 			}
 		}
 	}
+	DI::profiler()->stopRecording();
 	return $children;
 }
 
@@ -1196,6 +1215,7 @@ function get_item_children(array &$item_list, array $parent, $recursive = true)
  */
 function sort_item_children(array $items)
 {
+	DI::profiler()->startRecording('rendering');
 	$result = $items;
 	usort($result, 'sort_thr_received_rev');
 	foreach ($result as $k => $i) {
@@ -1203,6 +1223,7 @@ function sort_item_children(array $items)
 			$result[$k]['children'] = sort_item_children($result[$k]['children']);
 		}
 	}
+	DI::profiler()->stopRecording();
 	return $result;
 }
 
@@ -1240,7 +1261,9 @@ function add_children_to_list(array $children, array &$item_list)
  */
 function smart_flatten_conversation(array $parent)
 {
+	DI::profiler()->startRecording('rendering');
 	if (!isset($parent['children']) || count($parent['children']) == 0) {
+		DI::profiler()->stopRecording();
 		return $parent;
 	}
 
@@ -1251,6 +1274,7 @@ function smart_flatten_conversation(array $parent)
 		if (isset($child['children']) && count($child['children'])) {
 			// This helps counting only the regular posts
 			$count_post_closure = function($var) {
+				DI::profiler()->stopRecording();
 				return $var['verb'] === Activity::POST;
 			};
 
@@ -1276,6 +1300,7 @@ function smart_flatten_conversation(array $parent)
 		}
 	}
 
+	DI::profiler()->stopRecording();
 	return $parent;
 }
 
@@ -1293,9 +1318,11 @@ function smart_flatten_conversation(array $parent)
  */
 function conv_sort(array $item_list, $order)
 {
+	DI::profiler()->startRecording('rendering');
 	$parents = [];
 
 	if (!(is_array($item_list) && count($item_list))) {
+		DI::profiler()->stopRecording();
 		return $parents;
 	}
 
@@ -1355,6 +1382,7 @@ function conv_sort(array $item_list, $order)
 		}
 	}
 
+	DI::profiler()->stopRecording();
 	return $parents;
 }
 

src/Content/Text/BBCode.php

@@ -152,6 +152,7 @@ class BBCode
 	 */
 	public static function getAttachmentData($body)
 	{
+		DI::profiler()->startRecording('rendering');
 		$data = [
 			'type'          => '',
 			'text'          => '',
@@ -167,6 +168,7 @@ class BBCode
 		];
 
 		if (!preg_match("/(.*)\[attachment(.*?)\](.*?)\[\/attachment\](.*)/ism", $body, $match)) {
+			DI::profiler()->stopRecording();
 			return self::getOldAttachmentData($body);
 		}
 
@@ -211,6 +213,7 @@ class BBCode
 		}
 
 		if (!in_array($data['type'], ['link', 'audio', 'photo', 'video'])) {
+			DI::profiler()->stopRecording();
 			return [];
 		}
 
@@ -232,6 +235,7 @@ class BBCode
 			}
 		}
 
+		DI::profiler()->stopRecording();
 		return $data;
 	}
 
@@ -247,6 +251,7 @@ class BBCode
 		- (thumbnail)
 		*/
 
+		DI::profiler()->startRecording('rendering');
 		$has_title = !empty($item['title']);
 		$plink = $item['plink'] ?? '';
 		$post = self::getAttachmentData($body);
@@ -398,6 +403,7 @@ class BBCode
 			}
 		}
 
+		DI::profiler()->stopRecording();
 		return $post;
 	}
 
@@ -434,6 +440,7 @@ class BBCode
 	 */
 	public static function toPlaintext($text, $keep_urls = true)
 	{
+		DI::profiler()->startRecording('rendering');
 		// Remove pictures in advance to avoid unneeded proxy calls
 		$text = preg_replace("/\[img\=(.*?)\](.*?)\[\/img\]/ism", ' $2 ', $text);
 		$text = preg_replace("/\[img.*?\[\/img\]/ism", ' ', $text);
@@ -443,6 +450,7 @@ class BBCode
 
 		$naked_text = HTML::toPlaintext(self::convert($text, false, 0, true), 0, !$keep_urls);
 
+		DI::profiler()->stopRecording();
 		return $naked_text;
 	}
 
@@ -468,6 +476,7 @@ class BBCode
 	 */
 	public static function scaleExternalImages(string $srctext)
 	{
+		DI::profiler()->startRecording('rendering');
 		$s = $srctext;
 
 		// Simplify image links
@@ -517,6 +526,7 @@ class BBCode
 			}
 		}
 
+		DI::profiler()->stopRecording();
 		return $s;
 	}
 
@@ -532,6 +542,7 @@ class BBCode
 	 */
 	public static function limitBodySize($body)
 	{
+		DI::profiler()->startRecording('rendering');
 		$maxlen = DI::config()->get('config', 'max_import_size', 0);
 
 		// If the length of the body, including the embedded images, is smaller
@@ -603,8 +614,10 @@ class BBCode
 				$new_body = $new_body . $orig_body;
 			}
 
+			DI::profiler()->stopRecording();
 			return $new_body;
 		} else {
+			DI::profiler()->stopRecording();
 			return $body;
 		}
 	}
@@ -624,13 +637,13 @@ class BBCode
 	 */
 	public static function convertAttachment($text, $simplehtml = self::INTERNAL, $tryoembed = true, array $data = [], $uriid = 0)
 	{
+		DI::profiler()->startRecording('rendering');
 		$data = $data ?: self::getAttachmentData($text);
 		if (empty($data) || empty($data['url'])) {
+			DI::profiler()->stopRecording();
 			return $text;
 		}
 
-		$stamp1 = microtime(true);
-
 		if (isset($data['title'])) {
 			$data['title'] = strip_tags($data['title']);
 			$data['title'] = str_replace(['http://', 'https://'], '', $data['title']);
@@ -688,17 +701,20 @@ class BBCode
 			}
 		}
 
-		DI::profiler()->saveTimestamp($stamp1, 'rendering');
+		DI::profiler()->stopRecording();
 		return trim(($data['text'] ?? '') . ' ' . $return . ' ' . ($data['after'] ?? ''));
 	}
 
 	public static function removeShareInformation($Text, $plaintext = false, $nolink = false)
 	{
+		DI::profiler()->startRecording('rendering');
 		$data = self::getAttachmentData($Text);
 
 		if (!$data) {
+			DI::profiler()->stopRecording();
 			return $Text;
 		} elseif ($nolink) {
+			DI::profiler()->stopRecording();
 			return $data['text'] . ($data['after'] ?? '');
 		}
 
@@ -712,11 +728,13 @@ class BBCode
 		}
 
 		if (empty($data['text']) && !empty($data['title']) && empty($data['url'])) {
+			DI::profiler()->stopRecording();
 			return $data['title'] . $data['after'];
 		}
 
 		// If the link already is included in the post, don't add it again
 		if (!empty($data['url']) && strpos($data['text'], $data['url'])) {
+			DI::profiler()->stopRecording();
 			return $data['text'] . $data['after'];
 		}
 
@@ -728,6 +746,7 @@ class BBCode
 			$text .= "\n[url]" . $data['url'] . '[/url]';
 		}
 
+		DI::profiler()->stopRecording();
 		return $text . "\n" . $data['after'];
 	}
 
@@ -821,6 +840,7 @@ class BBCode
 	 */
 	public static function getTagPosition($text, $name, $occurrences = 0)
 	{
+		DI::profiler()->startRecording('rendering');
 		if ($occurrences < 0) {
 			$occurrences = 0;
 		}
@@ -833,6 +853,7 @@ class BBCode
 		}
 
 		if ($start_open === false) {
+			DI::profiler()->stopRecording();
 			return false;
 		}
 
@@ -840,6 +861,7 @@ class BBCode
 		$start_close = strpos($text, ']', $start_open);
 
 		if ($start_close === false) {
+			DI::profiler()->stopRecording();
 			return false;
 		}
 
@@ -848,6 +870,7 @@ class BBCode
 		$end_open = strpos($text, '[/' . $name . ']', $start_close);
 
 		if ($end_open === false) {
+			DI::profiler()->stopRecording();
 			return false;
 		}
 
@@ -866,6 +889,7 @@ class BBCode
 			$res['start']['equal'] = $start_equal + 1;
 		}
 
+		DI::profiler()->stopRecording();
 		return $res;
 	}
 
@@ -880,6 +904,7 @@ class BBCode
 	 */
 	public static function pregReplaceInTag($pattern, $replace, $name, $text)
 	{
+		DI::profiler()->startRecording('rendering');
 		$occurrences = 0;
 		$pos = self::getTagPosition($text, $name, $occurrences);
 		while ($pos !== false && $occurrences++ < 1000) {
@@ -896,6 +921,7 @@ class BBCode
 			$pos = self::getTagPosition($text, $name, $occurrences);
 		}
 
+		DI::profiler()->stopRecording();
 		return $text;
 	}
 
@@ -964,12 +990,14 @@ class BBCode
 	 */
 	public static function fetchShareAttributes($text)
 	{
+		DI::profiler()->startRecording('rendering');
 		// See Issue https://github.com/friendica/friendica/issues/10454
 		// Hashtags in usernames are expanded to links. This here is a quick fix.
 		$text = preg_replace('/([@!#])\[url\=.*?\](.*?)\[\/url\]/ism', '$1$2', $text);
 
 		$attributes = [];
 		if (!preg_match("/(.*?)\[share(.*?)\](.*)\[\/share\]/ism", $text, $matches)) {
+			DI::profiler()->stopRecording();
 			return $attributes;
 		}
 
@@ -978,6 +1006,7 @@ class BBCode
 			preg_match("/$field=(['\"])(.+?)\\1/ism", $attribute_string, $matches);
 			$attributes[$field] = html_entity_decode($matches[2] ?? '', ENT_QUOTES, 'UTF-8');
 		}
+		DI::profiler()->stopRecording();
 		return $attributes;
 	}
 
@@ -1002,6 +1031,7 @@ class BBCode
 	 */
 	public static function convertShare($text, callable $callback, int $uriid = 0)
 	{
+		DI::profiler()->startRecording('rendering');
 		$return = preg_replace_callback(
 			"/(.*?)\[share(.*?)\](.*)\[\/share\]/ism",
 			function ($match) use ($callback, $uriid) {
@@ -1033,6 +1063,7 @@ class BBCode
 			$text
 		);
 
+		DI::profiler()->stopRecording();
 		return $return;
 	}
 
@@ -1052,6 +1083,7 @@ class BBCode
 	 */
 	private static function convertShareCallback(array $attributes, array $author_contact, $content, $is_quote_share, $simplehtml)
 	{
+		DI::profiler()->startRecording('rendering');
 		$mention = Protocol::formatMention($attributes['profile'], $attributes['author']);
 
 		switch ($simplehtml) {
@@ -1247,19 +1279,23 @@ class BBCode
 
 	public static function cleanPictureLinks($text)
 	{
+		DI::profiler()->startRecording('rendering');
 		$return = preg_replace_callback("&\[url=([^\[\]]*)\]\[img=(.*)\](.*)\[\/img\]\[\/url\]&Usi", 'self::cleanPictureLinksCallback', $text);
 		$return = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'self::cleanPictureLinksCallback', $return);
+		DI::profiler()->stopRecording();
 		return $return;
 	}
 
 	public static function removeLinks(string $bbcode)
 	{
+		DI::profiler()->startRecording('rendering');
 		$bbcode = preg_replace("/\[img\=(.*?)\](.*?)\[\/img\]/ism", ' $1 ', $bbcode);
 		$bbcode = preg_replace("/\[img.*?\[\/img\]/ism", ' ', $bbcode);
 
 		$bbcode = preg_replace('/[@!#]\[url\=.*?\].*?\[\/url\]/ism', '', $bbcode);
 		$bbcode = preg_replace("/\[url=[^\[\]]*\](.*)\[\/url\]/Usi", ' $1 ', $bbcode);
 		$bbcode = preg_replace('/[@!#]?\[url.*?\[\/url\]/ism', '', $bbcode);
+		DI::profiler()->stopRecording();
 		return $bbcode;
 	}
 
@@ -1271,8 +1307,11 @@ class BBCode
 	 */
 	public static function setMentionsToNicknames(string $body):string
 	{
+		DI::profiler()->startRecording('rendering');
 		$regexp = "/([@!])\[url\=([^\[\]]*)\].*?\[\/url\]/ism";
-		return preg_replace_callback($regexp, ['self', 'mentionCallback'], $body);
+		$body = preg_replace_callback($regexp, ['self', 'mentionCallback'], $body);
+		DI::profiler()->stopRecording();
+		return $body;
 	}
 
 	/**
@@ -1360,6 +1399,8 @@ class BBCode
 			return '';
 		}
 
+		DI::profiler()->startRecording('rendering');
+
 		Hook::callAll('bbcode', $text);
 
 		$a = DI::app();
@@ -1979,6 +2020,7 @@ class BBCode
 		);
 
 		$text = HTML::purify($text, $allowedIframeDomains);
+		DI::profiler()->stopRecording();
 
 		return trim($text);
 	}
@@ -1991,9 +2033,11 @@ class BBCode
 	 */
 	public static function stripAbstract($text)
 	{
+		DI::profiler()->startRecording('rendering');
 		$text = preg_replace("/[\s|\n]*\[abstract\].*?\[\/abstract\][\s|\n]*/ism", '', $text);
 		$text = preg_replace("/[\s|\n]*\[abstract=.*?\].*?\[\/abstract][\s|\n]*/ism", '', $text);
 
+		DI::profiler()->stopRecording();
 		return $text;
 	}
 
@@ -2006,6 +2050,7 @@ class BBCode
 	 */
 	public static function getAbstract($text, $addon = '')
 	{
+		DI::profiler()->startRecording('rendering');
 		$abstract = '';
 		$abstracts = [];
 		$addon = strtolower($addon);
@@ -2024,6 +2069,7 @@ class BBCode
 			$abstract = $result[1];
 		}
 
+		DI::profiler()->stopRecording();
 		return $abstract;
 	}
 
@@ -2062,6 +2108,7 @@ class BBCode
 	 */
 	public static function toMarkdown($text, $for_diaspora = true)
 	{
+		DI::profiler()->startRecording('rendering');
 		$original_text = $text;
 
 		// Since Diaspora is creating a summary for links, this function removes them before posting
@@ -2106,13 +2153,9 @@ class BBCode
 		// Maybe we should make this newline at every time before a quote.
 		$text = str_replace(['</a><blockquote>'], ['</a><br><blockquote>'], $text);
 
-		$stamp1 = microtime(true);
-
 		// Now convert HTML to Markdown
 		$text = HTML::toMarkdown($text);
 
-		DI::profiler()->saveTimestamp($stamp1, "parser");
-
 		// Libertree has a problem with escaped hashtags.
 		$text = str_replace(['\#'], ['#'], $text);
 
@@ -2131,6 +2174,7 @@ class BBCode
 
 		Hook::callAll('bb2diaspora', $text);
 
+		DI::profiler()->stopRecording();
 		return $text;
 	}
 
@@ -2149,6 +2193,7 @@ class BBCode
 	 */
 	public static function getTags($string)
 	{
+		DI::profiler()->startRecording('rendering');
 		$ret = [];
 
 		self::performWithEscapedTags($string, ['noparse', 'pre', 'code', 'img'], function ($string) use (&$ret) {
@@ -2199,6 +2244,7 @@ class BBCode
 			}
 		});
 
+		DI::profiler()->stopRecording();
 		return array_unique($ret);
 	}
 
@@ -2258,6 +2304,7 @@ class BBCode
 	 */
 	public static function setMentions($body, $profile_uid = 0, $network = '')
 	{
+		DI::profiler()->startRecording('rendering');
 		self::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) use ($profile_uid, $network) {
 			$tags = self::getTags($body);
 
@@ -2289,6 +2336,7 @@ class BBCode
 			return $body;
 		});
 
+		DI::profiler()->stopRecording();
 		return $body;
 	}
 
@@ -2304,6 +2352,7 @@ class BBCode
 	 */
 	public static function getShareOpeningTag(string $author, string $profile, string $avatar, string $link, string $posted, string $guid = null)
 	{
+		DI::profiler()->startRecording('rendering');
 		$header = "[share author='" . str_replace(["'", "[", "]"], ["&#x27;", "&#x5B;", "&#x5D;"], $author) .
 			"' profile='" . str_replace(["'", "[", "]"], ["&#x27;", "&#x5B;", "&#x5D;"], $profile) .
 			"' avatar='" . str_replace(["'", "[", "]"], ["&#x27;", "&#x5B;", "&#x5D;"], $avatar) .
@@ -2316,6 +2365,7 @@ class BBCode
 
 		$header  .= "']";
 
+		DI::profiler()->stopRecording();
 		return $header;
 	}
 
@@ -2337,6 +2387,7 @@ class BBCode
 	 */
 	public static function embedURL(string $url, bool $tryAttachment = true, string $title = null, string $description = null, string $tags = null): string
 	{
+		DI::profiler()->startRecording('rendering');
 		DI::logger()->info($url);
 
 		// If there is already some content information submitted we don't
@@ -2358,6 +2409,7 @@ class BBCode
 
 			DI::logger()->info('(unparsed): returns: ' . $result);
 
+			DI::profiler()->stopRecording();
 			return $result;
 		}
 
@@ -2376,6 +2428,7 @@ class BBCode
 					break;
 			}
 
+			DI::profiler()->stopRecording();
 			return $bbcode;
 		}
 
@@ -2383,10 +2436,13 @@ class BBCode
 
 		// Bypass attachment if parse url for a comment
 		if (!$tryAttachment) {
+			DI::profiler()->stopRecording();
 			return "\n" . '[url=' . $url . ']' . $siteinfo['title'] . '[/url]';
 		}
 
 		// Format it as BBCode attachment
-		return "\n" . PageInfo::getFooterFromData($siteinfo);
+		$bbcode = "\n" . PageInfo::getFooterFromData($siteinfo);
+		DI::profiler()->stopRecording();
+		return $bbcode;
 	}
 }

src/Content/Text/HTML.php

@@ -143,6 +143,7 @@ class HTML
 	 */
 	public static function toBBCode($message, $basepath = '')
 	{
+		DI::profiler()->startRecording('rendering');
 		$message = str_replace("\r", "", $message);
 
 		$message = Strings::performWithEscapedBlocks($message, '#<pre><code.*</code></pre>#iUs', function ($message) {
@@ -396,6 +397,7 @@ class HTML
 			$message = self::qualifyURLs($message, $basepath);
 		}
 
+		DI::profiler()->stopRecording();
 		return $message;
 	}
 
@@ -585,6 +587,7 @@ class HTML
 	 */
 	public static function toPlaintext(string $html, $wraplength = 75, $compact = false)
 	{
+		DI::profiler()->startRecording('rendering');
 		$message = str_replace("\r", "", $html);
 
 		$doc = new DOMDocument();
@@ -593,6 +596,7 @@ class HTML
 		$message = mb_convert_encoding($message, 'HTML-ENTITIES', "UTF-8");
 
 		if (empty($message)) {
+			DI::profiler()->stopRecording();
 			return '';
 		}
 
@@ -606,6 +610,7 @@ class HTML
 		$urls = self::collectURLs($message);
 
 		if (empty($message)) {
+			DI::profiler()->stopRecording();
 			return '';
 		}
 
@@ -689,6 +694,7 @@ class HTML
 
 		$message = self::quoteLevel(trim($message), $wraplength);
 
+		DI::profiler()->stopRecording();
 		return trim($message);
 	}
 
@@ -701,9 +707,11 @@ class HTML
 	 */
 	public static function toMarkdown($html)
 	{
+		DI::profiler()->startRecording('rendering');
 		$converter = new HtmlConverter(['hard_break' => true]);
 		$markdown = $converter->convert($html);
 
+		DI::profiler()->stopRecording();
 		return $markdown;
 	}
 

src/Content/Text/Markdown.php

@@ -21,7 +21,6 @@
 
 namespace Friendica\Content\Text;
 
-use Friendica\Core\System;
 use Friendica\DI;
 use Friendica\Model\Contact;
 
@@ -40,7 +39,7 @@ class Markdown
 	 * @return string
 	 */
 	public static function convert($text, $hardwrap = true, $baseuri = null) {
-		$stamp1 = microtime(true);
+		DI::profiler()->startRecording('rendering');
 
 		$MarkdownParser = new MarkdownParser();
 		$MarkdownParser->code_class_prefix  = 'language-';
@@ -57,7 +56,7 @@ class Markdown
 
 		$html = $MarkdownParser->transform($text);
 
-		DI::profiler()->saveTimestamp($stamp1, "parser");
+		DI::profiler()->stopRecording();
 
 		return $html;
 	}
@@ -109,6 +108,8 @@ class Markdown
 	 */
 	public static function toBBCode($s)
 	{
+		DI::profiler()->startRecording('rendering');
+
 		// The parser cannot handle paragraphs correctly
 		$s = str_replace(['</p>', '<p>', '<p dir="ltr">'], ['<br>', '<br>', '<br>'], $s);
 
@@ -134,6 +135,7 @@ class Markdown
 		// Don't show link to full picture (until it is fixed)
 		$s = BBCode::scaleExternalImages($s);
 
+		DI::profiler()->stopRecording();
 		return $s;
 	}
 }

src/Core/Addon.php

@@ -236,9 +236,9 @@ class Addon
 			return $info;
 		}
 
-		$stamp1 = microtime(true);
+		DI::profiler()->startRecording('file');
 		$f = file_get_contents("addon/$addon/$addon.php");
-		DI::profiler()->saveTimestamp($stamp1, "file");
+		DI::profiler()->stopRecording();
 
 		$r = preg_match("|/\*.*\*/|msU", $f, $m);
 

src/Core/Cache/ProfilerCache.php

@@ -52,11 +52,11 @@ class ProfilerCache implements ICache, IMemoryCache
 	 */
 	public function getAllKeys($prefix = null)
 	{
-		$time = microtime(true);
+		$this->profiler->startRecording('cache');
 
 		$return = $this->cache->getAllKeys($prefix);
 
-		$this->profiler->saveTimestamp($time, 'cache');
+		$this->profiler->stopRecording();
 
 		return $return;
 	}
@@ -66,11 +66,11 @@ class ProfilerCache implements ICache, IMemoryCache
 	 */
 	public function get($key)
 	{
-		$time = microtime(true);
+		$this->profiler->startRecording('cache');
 
 		$return = $this->cache->get($key);
 
-		$this->profiler->saveTimestamp($time, 'cache');
+		$this->profiler->stopRecording();
 
 		return $return;
 	}
@@ -80,11 +80,11 @@ class ProfilerCache implements ICache, IMemoryCache
 	 */
 	public function set($key, $value, $ttl = Duration::FIVE_MINUTES)
 	{
-		$time = microtime(true);
+		$this->profiler->startRecording('cache');
 
 		$return = $this->cache->set($key, $value, $ttl);
 
-		$this->profiler->saveTimestamp($time, 'cache');
+		$this->profiler->stopRecording();
 
 		return $return;
 	}
@@ -94,11 +94,11 @@ class ProfilerCache implements ICache, IMemoryCache
 	 */
 	public function delete($key)
 	{
-		$time = microtime(true);
+		$this->profiler->startRecording('cache');
 
 		$return = $this->cache->delete($key);
 
-		$this->profiler->saveTimestamp($time, 'cache');
+		$this->profiler->stopRecording();
 
 		return $return;
 	}
@@ -108,11 +108,11 @@ class ProfilerCache implements ICache, IMemoryCache
 	 */
 	public function clear($outdated = true)
 	{
-		$time = microtime(true);
+		$this->profiler->startRecording('cache');
 
 		$return = $this->cache->clear($outdated);
 
-		$this->profiler->saveTimestamp($time, 'cache');
+		$this->profiler->stopRecording();
 
 		return $return;
 	}
@@ -123,11 +123,11 @@ class ProfilerCache implements ICache, IMemoryCache
 	public function add($key, $value, $ttl = Duration::FIVE_MINUTES)
 	{
 		if ($this->cache instanceof IMemoryCache) {
-			$time = microtime(true);
+			$this->profiler->startRecording('cache');
 
 			$return = $this->cache->add($key, $value, $ttl);
 
-			$this->profiler->saveTimestamp($time, 'cache');
+			$this->profiler->stopRecording();
 
 			return $return;
 		} else {
@@ -141,11 +141,11 @@ class ProfilerCache implements ICache, IMemoryCache
 	public function compareSet($key, $oldValue, $newValue, $ttl = Duration::FIVE_MINUTES)
 	{
 		if ($this->cache instanceof IMemoryCache) {
-			$time = microtime(true);
+			$this->profiler->startRecording('cache');
 
 			$return = $this->cache->compareSet($key, $oldValue, $newValue, $ttl);
 
-			$this->profiler->saveTimestamp($time, 'cache');
+			$this->profiler->stopRecording();
 
 			return $return;
 		} else {
@@ -159,11 +159,11 @@ class ProfilerCache implements ICache, IMemoryCache
 	public function compareDelete($key, $value)
 	{
 		if ($this->cache instanceof IMemoryCache) {
-			$time = microtime(true);
+			$this->profiler->startRecording('cache');
 
 			$return = $this->cache->compareDelete($key, $value);
 
-			$this->profiler->saveTimestamp($time, 'cache');
+			$this->profiler->stopRecording();
 
 			return $return;
 		} else {

src/Core/Renderer.php

@@ -73,7 +73,7 @@ class Renderer
 	 */
 	public static function replaceMacros(string $template, array $vars = [])
 	{
-		$stamp1 = microtime(true);
+		DI::profiler()->startRecording('rendering');
 
 		// pass $baseurl to all templates if it isn't set
 		$vars = array_merge(['$baseurl' => DI::baseUrl()->get(), '$APP' => DI::app()], $vars);
@@ -90,7 +90,7 @@ class Renderer
 			throw new InternalServerErrorException($message);
 		}
 
-		DI::profiler()->saveTimestamp($stamp1, "rendering");
+		DI::profiler()->stopRecording();
 
 		return $output;
 	}
@@ -106,7 +106,7 @@ class Renderer
 	 */
 	public static function getMarkupTemplate($file, $subDir = '')
 	{
-		$stamp1 = microtime(true);
+		DI::profiler()->startRecording('file');
 		$t = self::getTemplateEngine();
 
 		try {
@@ -119,7 +119,7 @@ class Renderer
 			throw new InternalServerErrorException($message);
 		}
 
-		DI::profiler()->saveTimestamp($stamp1, "file");
+		DI::profiler()->stopRecording();
 
 		return $template;
 	}

src/Core/Theme.php

@@ -88,9 +88,9 @@ class Theme
 			return $info;
 		}
 
-		$stamp1 = microtime(true);
+		DI::profiler()->startRecording('file');
 		$theme_file = file_get_contents("view/theme/$theme/theme.php");
-		DI::profiler()->saveTimestamp($stamp1, "file");
+		DI::profiler()->stopRecording();
 
 		$result = preg_match("|/\*.*\*/|msU", $theme_file, $matches);
 

src/Database/Database.php

@@ -468,6 +468,7 @@ class Database
 	public function p($sql)
 	{
 
+		$this->profiler->startRecording('database');
 		$stamp1 = microtime(true);
 
 		$params = DBA::getParam(func_get_args());
@@ -695,7 +696,7 @@ class Database
 			$this->errorno = $errorno;
 		}
 
-		$this->profiler->saveTimestamp($stamp1, 'database');
+		$this->profiler->stopRecording();
 
 		if ($this->configCache->get('system', 'db_log')) {
 			$stamp2   = microtime(true);
@@ -727,7 +728,7 @@ class Database
 	public function e($sql)
 	{
 
-		$stamp = microtime(true);
+		$this->profiler->startRecording('database_write');
 
 		$params = DBA::getParam(func_get_args());
 
@@ -779,7 +780,7 @@ class Database
 			$this->errorno = $errorno;
 		}
 
-		$this->profiler->saveTimestamp($stamp, "database_write");
+		$this->profiler->stopRecording();
 
 		return $retval;
 	}
@@ -914,7 +915,7 @@ class Database
 	 */
 	public function fetch($stmt)
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('database');
 
 		$columns = [];
 
@@ -962,7 +963,7 @@ class Database
 				}
 		}
 
-		$this->profiler->saveTimestamp($stamp1, 'database');
+		$this->profiler->stopRecording();
 
 		return $columns;
 	}
@@ -1589,7 +1590,7 @@ class Database
 	public function close($stmt)
 	{
 
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('database');
 
 		if (!is_object($stmt)) {
 			return false;
@@ -1615,7 +1616,7 @@ class Database
 				break;
 		}
 
-		$this->profiler->saveTimestamp($stamp1, 'database');
+		$this->profiler->stopRecording();
 
 		return $ret;
 	}

src/Factory/SessionFactory.php

@@ -58,7 +58,7 @@ class SessionFactory
 	 */
 	public function createSession(App\Mode $mode, App\BaseURL $baseURL, IConfig $config, Database $dba, ICache $cache, LoggerInterface $logger, Profiler $profiler, array $server = [])
 	{
-		$stamp1  = microtime(true);
+		$profiler->startRecording('parser');
 		$session = null;
 
 		try {
@@ -85,7 +85,7 @@ class SessionFactory
 				$session = new Session\Native($baseURL, $handler);
 			}
 		} finally {
-			$profiler->saveTimestamp($stamp1, 'parser');
+			$profiler->stopRecording();
 			return $session;
 		}
 	}

src/Model/Item.php

@@ -2858,7 +2858,7 @@ class Item
 	 */
 	private static function replaceVisualAttachments(array $attachments, string $body)
 	{
-		$stamp1 = microtime(true);
+		DI::profiler()->startRecording('rendering');
 
 		foreach ($attachments['visual'] as $attachment) {
 			if (!empty($attachment['preview'])) {
@@ -2867,7 +2867,7 @@ class Item
 				$body = str_replace($attachment['url'], Post\Media::getUrlForId($attachment['id']), $body);
 			}
 		}
-		DI::profiler()->saveTimestamp($stamp1, 'rendering');
+		DI::profiler()->stopRecording();
 		return $body;
 	}
 
@@ -2881,7 +2881,7 @@ class Item
 	 */
 	private static function addVisualAttachments(array $attachments, array $item, string $content, bool $shared)
 	{
-		$stamp1 = microtime(true);
+		DI::profiler()->startRecording('rendering');
 		$leading = '';
 		$trailing = '';
 
@@ -2957,7 +2957,7 @@ class Item
 			}
 		}
 
-		DI::profiler()->saveTimestamp($stamp1, 'rendering');
+		DI::profiler()->stopRecording();
 		return $content;
 	}
 
@@ -2973,7 +2973,7 @@ class Item
 	 */
 	private static function addLinkAttachment(int $uriid, array $attachments, string $body, string $content, bool $shared, array $ignore_links)
 	{
-		$stamp1 = microtime(true);
+		DI::profiler()->startRecording('rendering');
 		// @ToDo Check only for audio and video
 		$preview = empty($attachments['visual']);
 
@@ -3038,7 +3038,7 @@ class Item
 		} elseif (preg_match("/.*(\[attachment.*?\].*?\[\/attachment\]).*/ism", $body, $match)) {
 			$data = BBCode::getAttachmentData($match[1]);
 		}
-		DI::profiler()->saveTimestamp($stamp1, 'rendering');
+		DI::profiler()->stopRecording();
 
 		if (isset($data['url']) && !in_array($data['url'], $ignore_links)) {
 			if (!empty($data['description']) || !empty($data['image']) || !empty($data['preview'])) {
@@ -3086,7 +3086,7 @@ class Item
 	 */
 	private static function addNonVisualAttachments(array $attachments, array $item, string $content)
 	{
-		$stamp1 = microtime(true);
+		DI::profiler()->startRecording('rendering');
 		$trailing = '';
 		foreach ($attachments['additional'] as $attachment) {
 			if (strpos($item['body'], $attachment['url'])) {
@@ -3112,7 +3112,7 @@ class Item
 			$content .= '<div class="body-attach">' . $trailing . '<div class="clear"></div></div>';
 		}
 
-		DI::profiler()->saveTimestamp($stamp1, 'rendering');
+		DI::profiler()->stopRecording();
 		return $content;
 	}
 

src/Network/HTTPRequest.php

@@ -72,7 +72,7 @@ class HTTPRequest implements IHTTPRequest
 	 */
 	public function get(string $url, array $opts = [], &$redirects = 0)
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('network');
 
 		if (Network::isLocalLink($url)) {
 			$this->logger->info('Local link', ['url' => $url, 'callstack' => System::callstack(20)]);
@@ -80,7 +80,7 @@ class HTTPRequest implements IHTTPRequest
 
 		if (strlen($url) > 1000) {
 			$this->logger->debug('URL is longer than 1000 characters.', ['url' => $url, 'callstack' => System::callstack(20)]);
-			$this->profiler->saveTimestamp($stamp1, 'network');
+			$this->profiler->stopRecording();
 			return CurlResult::createErrorCurl(substr($url, 0, 200));
 		}
 
@@ -99,14 +99,14 @@ class HTTPRequest implements IHTTPRequest
 
 		if (Network::isUrlBlocked($url)) {
 			$this->logger->info('Domain is blocked.', ['url' => $url]);
-			$this->profiler->saveTimestamp($stamp1, 'network');
+			$this->profiler->stopRecording();
 			return CurlResult::createErrorCurl($url);
 		}
 
 		$ch = @curl_init($url);
 
 		if (($redirects > 8) || (!$ch)) {
-			$this->profiler->saveTimestamp($stamp1, 'network');
+			$this->profiler->stopRecording();
 			return CurlResult::createErrorCurl($url);
 		}
 
@@ -208,13 +208,13 @@ class HTTPRequest implements IHTTPRequest
 			$redirects++;
 			$this->logger->notice('Curl redirect.', ['url' => $url, 'to' => $curlResponse->getRedirectUrl()]);
 			@curl_close($ch);
-			$this->profiler->saveTimestamp($stamp1, 'network');
+			$this->profiler->stopRecording();
 			return $this->get($curlResponse->getRedirectUrl(), $opts, $redirects);
 		}
 
 		@curl_close($ch);
 
-		$this->profiler->saveTimestamp($stamp1, 'network');
+		$this->profiler->stopRecording();
 
 		return $curlResponse;
 	}
@@ -228,7 +228,7 @@ class HTTPRequest implements IHTTPRequest
 	 */
 	public function post(string $url, $params, array $headers = [], int $timeout = 0, &$redirects = 0)
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('network');
 
 		if (Network::isLocalLink($url)) {
 			$this->logger->info('Local link', ['url' => $url, 'callstack' => System::callstack(20)]);
@@ -236,14 +236,14 @@ class HTTPRequest implements IHTTPRequest
 
 		if (Network::isUrlBlocked($url)) {
 			$this->logger->info('Domain is blocked.' . ['url' => $url]);
-			$this->profiler->saveTimestamp($stamp1, 'network');
+			$this->profiler->stopRecording();
 			return CurlResult::createErrorCurl($url);
 		}
 
 		$ch = curl_init($url);
 
 		if (($redirects > 8) || (!$ch)) {
-			$this->profiler->saveTimestamp($stamp1, 'network');
+			$this->profiler->stopRecording();
 			return CurlResult::createErrorCurl($url);
 		}
 
@@ -303,13 +303,13 @@ class HTTPRequest implements IHTTPRequest
 			$redirects++;
 			$this->logger->info('Post redirect.', ['url' => $url, 'to' => $curlResponse->getRedirectUrl()]);
 			curl_close($ch);
-			$this->profiler->saveTimestamp($stamp1, 'network');
+			$this->profiler->stopRecording();
 			return $this->post($curlResponse->getRedirectUrl(), $params, $headers, $redirects, $timeout);
 		}
 
 		curl_close($ch);
 
-		$this->profiler->saveTimestamp($stamp1, 'network');
+		$this->profiler->stopRecording();
 
 		// Very old versions of Lighttpd don't like the "Expect" header, so we remove it when needed
 		if ($curlResponse->getReturnCode() == 417) {
@@ -358,7 +358,7 @@ class HTTPRequest implements IHTTPRequest
 
 		$url = trim($url, "'");
 
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('network');
 
 		$ch = curl_init();
 		curl_setopt($ch, CURLOPT_URL, $url);
@@ -374,7 +374,7 @@ class HTTPRequest implements IHTTPRequest
 		$http_code = $curl_info['http_code'];
 		curl_close($ch);
 
-		$this->profiler->saveTimestamp($stamp1, "network");
+		$this->profiler->stopRecording();
 
 		if ($http_code == 0) {
 			return $url;
@@ -403,7 +403,7 @@ class HTTPRequest implements IHTTPRequest
 			return $url;
 		}
 
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('network');
 
 		$ch = curl_init();
 		curl_setopt($ch, CURLOPT_URL, $url);
@@ -417,7 +417,7 @@ class HTTPRequest implements IHTTPRequest
 		$body = curl_exec($ch);
 		curl_close($ch);
 
-		$this->profiler->saveTimestamp($stamp1, "network");
+		$this->profiler->stopRecording();
 
 		if (trim($body) == "") {
 			return $url;

src/Object/Image.php

@@ -650,9 +650,9 @@ class Image
 
 		$string = $this->asString();
 
-		$stamp1 = microtime(true);
+		DI::profiler()->stopRecording('file');
 		file_put_contents($path, $string);
-		DI::profiler()->saveTimestamp($stamp1, "file");
+		DI::profiler()->stopRecording();
 	}
 
 	/**

src/Util/Logger/ProfilerLogger.php

@@ -59,9 +59,9 @@ class ProfilerLogger implements LoggerInterface
 	 */
 	public function emergency($message, array $context = array())
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('file');
 		$this->logger->emergency($message, $context);
-		$this->profiler->saveTimestamp($stamp1, 'file');
+		$this->profiler->stopRecording();
 	}
 
 	/**
@@ -69,9 +69,9 @@ class ProfilerLogger implements LoggerInterface
 	 */
 	public function alert($message, array $context = array())
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('file');
 		$this->logger->alert($message, $context);
-		$this->profiler->saveTimestamp($stamp1, 'file');
+		$this->profiler->stopRecording();
 	}
 
 	/**
@@ -79,9 +79,9 @@ class ProfilerLogger implements LoggerInterface
 	 */
 	public function critical($message, array $context = array())
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('file');
 		$this->logger->critical($message, $context);
-		$this->profiler->saveTimestamp($stamp1, 'file');
+		$this->profiler->stopRecording();
 	}
 
 	/**
@@ -89,9 +89,9 @@ class ProfilerLogger implements LoggerInterface
 	 */
 	public function error($message, array $context = array())
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('file');
 		$this->logger->error($message, $context);
-		$this->profiler->saveTimestamp($stamp1, 'file');
+		$this->profiler->stopRecording();
 	}
 
 	/**
@@ -99,9 +99,9 @@ class ProfilerLogger implements LoggerInterface
 	 */
 	public function warning($message, array $context = array())
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('file');
 		$this->logger->warning($message, $context);
-		$this->profiler->saveTimestamp($stamp1, 'file');
+		$this->profiler->stopRecording();
 	}
 
 	/**
@@ -109,9 +109,9 @@ class ProfilerLogger implements LoggerInterface
 	 */
 	public function notice($message, array $context = array())
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('file');
 		$this->logger->notice($message, $context);
-		$this->profiler->saveTimestamp($stamp1, 'file');
+		$this->profiler->stopRecording();
 	}
 
 	/**
@@ -119,9 +119,9 @@ class ProfilerLogger implements LoggerInterface
 	 */
 	public function info($message, array $context = array())
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('file');
 		$this->logger->info($message, $context);
-		$this->profiler->saveTimestamp($stamp1, 'file');
+		$this->profiler->stopRecording();
 	}
 
 	/**
@@ -129,9 +129,9 @@ class ProfilerLogger implements LoggerInterface
 	 */
 	public function debug($message, array $context = array())
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('file');
 		$this->logger->debug($message, $context);
-		$this->profiler->saveTimestamp($stamp1, 'file');
+		$this->profiler->stopRecording();
 	}
 
 	/**
@@ -139,8 +139,8 @@ class ProfilerLogger implements LoggerInterface
 	 */
 	public function log($level, $message, array $context = array())
 	{
-		$stamp1 = microtime(true);
+		$this->profiler->startRecording('file');
 		$this->logger->log($level, $message, $context);
-		$this->profiler->saveTimestamp($stamp1, 'file');
+		$this->profiler->stopRecording();
 	}
 }

src/Util/Profiler.php

@@ -54,6 +54,8 @@ class Profiler implements ContainerInterface
 	 */
 	private $rendertime;
 
+	private $timestamps = [];
+
 	/**
 	 * True, if the Profiler should measure the whole rendertime including functions
 	 *
@@ -85,6 +87,48 @@ class Profiler implements ContainerInterface
 		$this->reset();
 	}
 
+	public function startRecording(string $value)
+	{
+		if (!$this->enabled) {
+			return;
+		}
+
+		$this->timestamps[] = ['value' => $value, 'stamp' => microtime(true), 'credit' => 0];
+	}
+
+	public function stopRecording(string $callstack = '')
+	{
+		if (!$this->enabled || empty($this->timestamps)) {
+			return;
+		}
+
+		$timestamp = array_pop($this->timestamps);
+
+		$duration = floatval(microtime(true) - $timestamp['stamp'] - $timestamp['credit']);
+		$value = $timestamp['value'];
+
+		foreach ($this->timestamps as $key => $stamp) {
+			$this->timestamps[$key]['credit'] += $duration;
+		}
+
+		$callstack = $callstack ?: System::callstack(4, $value == 'rendering' ? 0 : 1);
+
+		if (!isset($this->performance[$value])) {
+			// Prevent ugly E_NOTICE
+			$this->performance[$value] = 0;
+		}
+
+		$this->performance[$value] += (float) $duration;
+		$this->performance['marktime'] += (float) $duration;
+
+		if (!isset($this->callstack[$value][$callstack])) {
+			// Prevent ugly E_NOTICE
+			$this->callstack[$value][$callstack] = 0;
+		}
+
+		$this->callstack[$value][$callstack] += (float) $duration;
+	}
+
 	/**
 	 * Saves a timestamp for a value - f.e. a call
 	 * Necessary for profiling Friendica
@@ -227,6 +271,15 @@ class Profiler implements ContainerInterface
 				}
 			}
 		}
+		if (isset($this->callstack["rendering"])) {
+			$output .= "\nRendering:\n";
+			foreach ($this->callstack["rendering"] as $func => $time) {
+				$time = round($time, 3);
+				if ($time > $limit) {
+					$output .= $func . ": " . $time . "\n";
+				}
+			}
+		}
 
 		return $output;
 	}

tests/src/Util/ProfilerTest.php

@@ -250,11 +250,12 @@ class ProfilerTest extends MockedTest
 		            ->once();
 
 		$profiler = new Profiler($configCache);
+		$profiler->startRecording('network');
 
 		self::assertFalse($profiler->isRendertime());
 		self::assertEmpty($profiler->getRendertimeString());
 
-		$profiler->saveTimestamp(time(), 'network', 'test1');
+		$profiler->stopRecording('test1');
 
 		$config = \Mockery::mock(IConfig::class);
 		$config->shouldReceive('get')
@@ -282,7 +283,8 @@ class ProfilerTest extends MockedTest
 
 		$profiler->update($config);
 
-		$profiler->saveTimestamp(time(), 'database', 'test2');
+		$profiler->startRecording('database');
+		$profiler->stopRecording('test2');
 
 		self::assertTrue($profiler->isRendertime());
 		$output = $profiler->getRendertimeString();