XHProf: Hierarchical Profiler Report

Diff Report: Run #519fbb3f5c2a0: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fbca569199: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip: Click a function name below to drill down.

Drupal\Core\Database\Database::openConnection	Run #519fbb3f5c2a0	Run #519fbca569199	Diff	Diff%
Number of Function Calls	1	1	0	0.0%
Incl. Wall Time (microsec)	1,195	1,152	-43	-3.6%
Incl. Wall Time (microsec) per call	1,195	1,152	-43	-3.6%
Excl. Wall Time (microsec)	37	35	-2	-5.4%
Incl. CPU (microsecs)	783	768	-15	-1.9%
Incl. CPU (microsecs) per call	783	768	-15	-1.9%
Excl. CPU (microsec)	30	25	-5	-16.7%
Incl. MemUse (bytes)	152,408	152,408	0	0.0%
Incl. MemUse (bytes) per call	152,408	152,408	0	0.0%
Excl. MemUse (bytes)	3,512	3,512	0	0.0%
Incl. PeakMemUse (bytes)	91,056	91,056	0	0.0%
Incl. PeakMemUse (bytes) per call	91,056	91,056	0	0.0%
Excl. PeakMemUse (bytes)	2,968	2,968	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%	-43	-6.8%	-15	-5.2%	0	N/A%	0	N/A%
Exclusive Metrics Diff for Current Function			-2	-4.7%	-5	-33.3%	0	N/A%	0	N/A%
*Parent function*
Drupal\Core\Database\Database::getConnection	0	N/A%	-43	-100.0%	-15	-100.0%	0	N/A%	0	N/A%
*Child functions*
Drupal\Core\Database\Driver\mysql\Connection::open	0	N/A%	-41	-95.3%	-12	-80.0%	0	N/A%	0	N/A%
Symfony\Component\ClassLoader\ClassLoader::loadClass	0	N/A%	1	2.3%	1	6.7%	0	N/A%	0	N/A%
Drupal\Core\Database\Driver\mysql\Connection::__construct	0	N/A%	-1	-2.3%	-1	-6.7%	0	N/A%	0	N/A%
Drupal\Core\Database\Connection::setKey	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	N/A%
Drupal\Core\Database\Connection::setTarget	0	N/A%	0	0.0%	2	13.3%	0	N/A%	0	N/A%
Drupal\Core\Database\Database::parseConnectionInfo	0	N/A%	0	0.0%	0	0.0%	0	N/A%	0	N/A%