XHProf: Hierarchical Profiler Report

Diff Report: Run #52f5cbc19a0d8: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5cb0964fa0: XHProf Run (Namespace=drupal-perf-cottser)
Tip: Click a function name below to drill down.

Drupal\Core\Database\Database::openConnection	Run #52f5cbc19a0d8	Run #52f5cb0964fa0	Diff	Diff%
Number of Function Calls	1	1	0	0.0%
Incl. Wall Time (microsec)	570	543	-27	-4.7%
Incl. Wall Time (microsec) per call	570	543	-27	-4.7%
Excl. Wall Time (microsec)	29	28	-1	-3.4%
Incl. CPU (microsecs)	395	371	-24	-6.1%
Incl. CPU (microsecs) per call	395	371	-24	-6.1%
Excl. CPU (microsec)	25	20	-5	-20.0%
Incl. MemUse (bytes)	151,536	151,544	8	0.0%
Incl. MemUse (bytes) per call	151,536	151,544	8	0.0%
Excl. MemUse (bytes)	3,480	3,480	0	0.0%
Incl. PeakMemUse (bytes)	148,072	148,080	8	0.0%
Incl. PeakMemUse (bytes) per call	148,072	148,080	8	0.0%
Excl. PeakMemUse (bytes)	3,792	3,792	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%	-27	-29.0%	-24	-12.3%	8	0.0%	8	0.0%
Exclusive Metrics Diff for Current Function			-1	-3.7%	-5	-20.8%	0	0.0%	0	0.0%
*Parent function*
Drupal\Core\Database\Database::getConnection	0	N/A%	-27	-100.0%	-24	-100.0%	8	100.0%	8	100.0%
*Child functions*
Drupal\Core\Database\Driver\mysql\Connection::open	0	N/A%	-21	-77.8%	-17	-70.8%	0	0.0%	0	0.0%
Drupal\Core\Database\Driver\mysql\Connection::__construct	0	N/A%	-10	-37.0%	-9	-37.5%	0	0.0%	0	0.0%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass	0	N/A%	4	14.8%	4	16.7%	8	100.0%	8	100.0%
Drupal\Core\Database\Database::parseConnectionInfo	0	N/A%	1	3.7%	1	4.2%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::setKey	0	N/A%	0	0.0%	1	4.2%	0	0.0%	0	0.0%
Drupal\Core\Database\Connection::setTarget	0	N/A%	0	0.0%	1	4.2%	0	0.0%	0	0.0%