XHProf: Hierarchical Profiler Report

Diff Report: Run #52e97b490de91: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52e97c22a1cdf: XHProf Run (Namespace=drupal-perf-joelpittet)
Tip: Click a function name below to drill down.

Regression/Improvement summary for substr

substr	Run #52e97b490de91	Run #52e97c22a1cdf	Diff	Diff%
Number of Function Calls	277	281	4	1.4%
Incl. Wall Time (microsec)	366	370	4	1.1%
Incl. Wall Time (microsec) per call	1	1	-0	-0.3%
Excl. Wall Time (microsec)	366	370	4	1.1%
Incl. CPU (microsecs)	670	650	-20	-3.0%
Incl. CPU (microsecs) per call	2	2	-0	-4.4%
Excl. CPU (microsec)	670	650	-20	-3.0%
Incl. MemUse (bytes)	43,864	44,136	272	0.6%
Incl. MemUse (bytes) per call	158	157	-1	-0.8%
Excl. MemUse (bytes)	43,864	44,136	272	0.6%
Incl. PeakMemUse (bytes)	12,632	12,912	280	2.2%
Incl. PeakMemUse (bytes) per call	46	46	0	0.8%
Excl. PeakMemUse (bytes)	12,632	12,912	280	2.2%

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%	4	0.6%	-20	-1.9%	272	0.2%	280	0.2%
Exclusive Metrics Diff for Current Function			4	100.0%	-20	-100.0%	272	100.0%	280	100.0%
*Parent functions*
Twig_Environment::getCacheFilename	4	100.0%	8	200.0%	-9	-45.0%	232	85.3%	0	0.0%
Drupal\Core\Entity\Query\Sql\Tables::addField	0	0.0%	4	100.0%	1	5.0%	8	2.9%	40	14.3%
Drupal\Core\Database\Connection::query	0	0.0%	-3	-75.0%	-1	-5.0%	24	8.8%	0	0.0%
theme@2	0	0.0%	-3	-75.0%	-8	-40.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString	0	0.0%	-3	-75.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\ParamConverter\EntityConverter::convert	0	0.0%	-2	-50.0%	-4	-20.0%	0	0.0%	0	0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate	0	0.0%	2	50.0%	6	30.0%	0	0.0%	0	0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces	0	0.0%	1	25.0%	2	10.0%	0	0.0%	0	0.0%
theme@1	0	0.0%	-1	-25.0%	-5	-25.0%	0	0.0%	0	0.0%
Drupal\Component\Uuid\Php::generate	0	0.0%	-1	-25.0%	3	15.0%	8	2.9%	0	0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern	0	0.0%	1	25.0%	-13	-65.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders	0	0.0%	1	25.0%	4	20.0%	0	0.0%	240	85.7%
twig_escape_filter	0	0.0%	0	0.0%	3	15.0%	0	0.0%	0	0.0%
Drupal\Core\Config\Entity\Query\Query::execute	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\Component\Utility\Url::stripDangerousProtocols	0	0.0%	0	0.0%	-1	-5.0%	0	0.0%	0	0.0%
drupal_settings_initialize	0	0.0%	0	0.0%	1	5.0%	0	0.0%	0	0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo	0	0.0%	0	0.0%	2	10.0%	0	0.0%	0	0.0%
Drupal\Component\Utility\Crypt::randomBytes	0	0.0%	0	0.0%	-1	-5.0%	0	0.0%	0	0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider	0	0.0%	0	0.0%	-1	-5.0%	0	0.0%	0	0.0%
theme	0	0.0%	0	0.0%	1	5.0%	0	0.0%	0	0.0%
request_path	0	0.0%	0	0.0%	0	0.0%	0	0.0%	0	0.0%