XHProf: Hierarchical Profiler Report

Diff Report: Run #531ee5f3237b0: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #531ee657ba49e: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #531ee5f3237b0	Run #531ee657ba49e	Diff	Diff%
Number of Function Calls	316	320	4	1.3%
Incl. Wall Time (microsec)	20	17	-3	-15.0%
Incl. Wall Time (microsec) per call	0	0	-0	-16.1%
Excl. Wall Time (microsec)	20	17	-3	-15.0%
Incl. CPU (microsecs)	338	356	18	5.3%
Incl. CPU (microsecs) per call	1	1	0	4.0%
Excl. CPU (microsec)	338	356	18	5.3%
Incl. MemUse (bytes)	28,664	28,920	256	0.9%
Incl. MemUse (bytes) per call	91	90	-0	-0.4%
Excl. MemUse (bytes)	28,664	28,920	256	0.9%
Incl. PeakMemUse (bytes)	4,456	4,464	8	0.2%
Incl. PeakMemUse (bytes) per call	14	14	-0	-1.1%
Excl. PeakMemUse (bytes)	4,456	4,464	8	0.2%

Parent/Child Regression/Improvement report for substr [View Callgraph Diff]

Function Name	Calls Diff	Calls Diff%	Incl. Wall Diff (microsec)	IWall Diff%	Incl. CPU Diff (microsec)	ICpu Diff%	Incl. MemUse Diff (bytes)	IMemUse Diff%	Incl. PeakMemUse Diff (bytes)	IPeakMemUse Diff%
*Current Function*
substr	4	100.0%	-3	-0.1%	18	0.6%	256	0.3%	8	0.0%
Exclusive Metrics Diff for Current Function			-3	-100.0%	18	100.0%	256	100.0%	8	100.0%
*Parent functions*
Twig_Environment::getCacheFilename	4	100.0%	0	0.0%	10	55.6%	232	90.6%	0	0.0%
Drupal\Core\Config\Entity\Query\Query::loadRecords	0	0.0%	0	0.0%	-2	-11.1%	0	0.0%	0	0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate	0	0.0%	1	33.3%	10	55.6%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\Sql\Tables::addField	0	0.0%	-2	-66.7%	-3	-16.7%	0	0.0%	0	0.0%
_theme@1	0	0.0%	0	0.0%	-3	-16.7%	0	0.0%	0	0.0%
twig_render_template@1	0	0.0%	-1	-33.3%	0	0.0%	0	0.0%	0	0.0%
Drupal\Component\Utility\UrlHelper::stripDangerousProtocols	0	0.0%	0	0.0%	-1	-5.6%	0	0.0%	0	0.0%
_theme@2	0	0.0%	-1	-33.3%	2	11.1%	0	0.0%	0	0.0%
Drupal\Core\Routing\UrlGenerator::processPath	0	0.0%	0	0.0%	1	5.6%	24	9.4%	0	0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces	0	0.0%	-1	-33.3%	1	5.6%	0	0.0%	8	100.0%
Guzzle\Http\Client::initSsl	0	0.0%	0	0.0%	-2	-11.1%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	-1	-33.3%	3	16.7%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	-1	-33.3%	-2	-11.1%	0	0.0%	0	0.0%
_drupal_request_initialize	0	0.0%	0	0.0%	-1	-5.6%	0	0.0%	0	0.0%
Composer\Autoload\ClassLoader::findFile	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	-1	-33.3%	-2	-11.1%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	0.0%	1	5.6%	0	0.0%	0	0.0%
file_uri_scheme	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	0	0.0%	2	11.1%	0	0.0%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	4	133.3%	4	22.2%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%