XHProf: Hierarchical Profiler Report

Diff Report: Run #531ccb2cb8e3d: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #531ccbd4518b6: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #531ccb2cb8e3d	Run #531ccbd4518b6	Diff	Diff%
Number of Function Calls	314	318	4	1.3%
Incl. Wall Time (microsec)	22	20	-2	-9.1%
Incl. Wall Time (microsec) per call	0	0	-0	-10.2%
Excl. Wall Time (microsec)	22	20	-2	-9.1%
Incl. CPU (microsecs)	344	347	3	0.9%
Incl. CPU (microsecs) per call	1	1	-0	-0.4%
Excl. CPU (microsec)	344	347	3	0.9%
Incl. MemUse (bytes)	27,832	28,088	256	0.9%
Incl. MemUse (bytes) per call	89	88	-0	-0.3%
Excl. MemUse (bytes)	27,832	28,088	256	0.9%
Incl. PeakMemUse (bytes)	4,440	4,424	-16	-0.4%
Incl. PeakMemUse (bytes) per call	14	14	-0	-1.6%
Excl. PeakMemUse (bytes)	4,440	4,424	-16	-0.4%

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%	-2	-2.0%	3	1.1%	256	0.7%	-16	-0.0%
Exclusive Metrics Diff for Current Function			-2	-100.0%	3	100.0%	256	100.0%	-16	-100.0%
*Parent functions*
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	-2	-100.0%	12	400.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate	0	0.0%	1	50.0%	-3	-100.0%	0	0.0%	0	0.0%
_theme@2	0	0.0%	-1	-50.0%	0	0.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	-1	-50.0%	1	33.3%	0	0.0%	0	0.0%
file_uri_scheme	0	0.0%	1	50.0%	-2	-66.7%	0	0.0%	0	0.0%
Drupal\Core\Config\Entity\Query\Query::loadRecords	0	0.0%	0	0.0%	-2	-66.7%	0	0.0%	0	0.0%
Twig_Environment::getCacheFilename	4	100.0%	0	0.0%	2	66.7%	232	90.6%	0	0.0%
_theme@1	0	0.0%	0	0.0%	-3	-100.0%	0	0.0%	0	0.0%
Drupal\Core\Routing\UrlGenerator::processPath	0	0.0%	0	0.0%	1	33.3%	24	9.4%	0	0.0%
Drupal\Component\Utility\UrlHelper::stripDangerousProtocols	0	0.0%	0	0.0%	0	0.0%	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%
_drupal_request_initialize	0	0.0%	0	0.0%	1	33.3%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\Sql\Tables::addField	0	0.0%	0	0.0%	-8	-266.7%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	0	0.0%	2	66.7%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	0.0%	-1	-33.3%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	0	0.0%	2	66.7%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces	0	0.0%	0	0.0%	0	0.0%	0	0.0%	-16	-100.0%
Guzzle\Http\Client::initSsl	0	0.0%	0	0.0%	-1	-33.3%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	0	0.0%	2	66.7%	0	0.0%	0	0.0%