Diff Report
Run #535139ab6e707: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #53513afe3c568: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #535139ab6e707Run #53513afe3c568DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)307 327 20 6.5%
Incl. Wall Time (microsec) per call 307 327 20 6.5%
Excl. Wall Time (microsec)27 30 3 11.1%
Incl. CPU (microsecs)141 156 15 10.6%
Incl. CPU (microsecs) per call 141 156 15 10.6%
Excl. CPU (microsec)26 26 0 0.0%
Incl. MemUse (bytes)13,176 13,176 0 0.0%
Incl. MemUse (bytes) per call 13,176 13,176 0 0.0%
Excl. MemUse (bytes)3,528 3,528 0 0.0%
Incl. PeakMemUse (bytes)12,808 12,808 0 0.0%
Incl. PeakMemUse (bytes) per call 12,808 12,808 0 0.0%
Excl. PeakMemUse (bytes)2,240 2,240 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Driver\mysql\Connection::open [View Callgraph Diff]


Function NameCalls DiffCalls
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\Driver\mysql\Connection::open0 N/A% 20 0.4% 15 0.2% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function3 15.0% 0 0.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 20 100.0% 15 100.0% 0 N/A% 0 N/A%
Child functions
PDO::exec0 N/A% 11 55.0% 4 26.7% 0 N/A% 0 N/A%
PDO::__construct0 N/A% 6 30.0% 11 73.3% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%