Diff Report
Run #51af430daedb2: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51af3d98520b7: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #51af430daedb2Run #51af3d98520b7DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)501 518 17 3.4%
Incl. Wall Time (microsec) per call 501 518 17 3.4%
Excl. Wall Time (microsec)39 40 1 2.6%
Incl. CPU (microsecs)241 219 -22 -9.1%
Incl. CPU (microsecs) per call 241 219 -22 -9.1%
Excl. CPU (microsec)33 33 0 0.0%
Incl. MemUse (bytes)12,584 12,584 0 0.0%
Incl. MemUse (bytes) per call 12,584 12,584 0 0.0%
Excl. MemUse (bytes)3,440 3,440 0 0.0%
Incl. PeakMemUse (bytes)0 0 0 N/A%
Incl. PeakMemUse (bytes) per call 0 0 0 N/A%
Excl. PeakMemUse (bytes)0 0 0 N/A%

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% 17 1.3% -22 -1.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 5.9% 0 0.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 17 100.0% -22 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 14 82.4% -23 -104.5% 0 N/A% 0 N/A%
PDO::exec0 N/A% 3 17.6% 2 9.1% 0 N/A% 0 N/A%
implode0 N/A% -1 -5.9% -1 -4.5% 0 N/A% 0 N/A%