XHProf: Hierarchical Profiler Report

Diff Report: Run #519e62c02d767: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519e636f9416a: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Drupal\Core\Database\Database::openConnection	Run #519e62c02d767	Run #519e636f9416a	Diff	Diff%
Number of Function Calls	1	1	0	0.0%
Incl. Wall Time (microsec)	1,335	897	-438	-32.8%
Incl. Wall Time (microsec) per call	1,335	897	-438	-32.8%
Excl. Wall Time (microsec)	37	35	-2	-5.4%
Incl. CPU (microsecs)	699	520	-179	-25.6%
Incl. CPU (microsecs) per call	699	520	-179	-25.6%
Excl. CPU (microsec)	32	29	-3	-9.4%
Incl. MemUse (bytes)	152,456	152,432	-24	-0.0%
Incl. MemUse (bytes) per call	152,456	152,432	-24	-0.0%
Excl. MemUse (bytes)	3,520	3,520	0	0.0%
Incl. PeakMemUse (bytes)	91,000	90,976	-24	-0.0%
Incl. PeakMemUse (bytes) per call	91,000	90,976	-24	-0.0%
Excl. PeakMemUse (bytes)	3,264	3,264	0	0.0%

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*
Drupal\Core\Database\Database::openConnection	0	N/A%	-438	-2.7%	-179	-1.2%	-24	-0.0%	-24	-0.0%
Exclusive Metrics Diff for Current Function			-2	-0.5%	-3	-1.7%	0	0.0%	0	0.0%
*Parent function*
Drupal\Core\Database\Database::getConnection	0	N/A%	-438	-100.0%	-179	-100.0%	-24	-100.0%	-24	-100.0%
*Child functions*
Drupal\Core\Database\Driver\mysql\Connection::open	0	N/A%	-437	-99.8%	-179	-100.0%	0	0.0%	0	0.0%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	N/A%	-1	-0.2%	0	0.0%	-24	-100.0%	-24	-100.0%
Drupal\Core\Database\Database::parseConnectionInfo	0	N/A%	1	0.2%	2	1.1%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::setKey	0	N/A%	1	0.2%	1	0.6%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Connection::__construct	0	N/A%	0	0.0%	0	0.0%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::setTarget	0	N/A%	0	0.0%	0	0.0%	0	0.0%	0	0.0%