Diff Report
Run #51c6814c41b47: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51c681e794599: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #51c6814c41b47Run #51c681e794599DiffDiff%
Number of Function Calls 1 1 N/A%
Incl. Wall Time (microsec) 872 872 N/A%
Incl. Wall Time (microsec) per call N/A 872 872 N/A%
Excl. Wall Time (microsec) 44 44 N/A%
Incl. CPU (microsecs) 314 314 N/A%
Incl. CPU (microsecs) per call N/A 314 314 N/A%
Excl. CPU (microsec) 40 40 N/A%
Incl. MemUse (bytes) 12,976 12,976 N/A%
Incl. MemUse (bytes) per call N/A 12,976 12,976 N/A%
Excl. MemUse (bytes) 3,360 3,360 N/A%
Incl. PeakMemUse (bytes) 11,344 11,344 N/A%
Incl. PeakMemUse (bytes) per call N/A 11,344 11,344 N/A%
Excl. PeakMemUse (bytes) 656 656 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::open1 7.1% 872 0.1% 314 0.0% 12,976 0.1% 11,344 0.1%
Exclusive Metrics Diff for Current Function44 5.0% 40 12.7% 3,360 25.9% 656 5.8%
Parent function
Drupal\Core\Database\Database::openConnection1 100.0% 872 100.0% 314 100.0% 12,976 100.0% 11,344 100.0%
Child functions
PDO::__construct1 25.0% 679 77.9% 207 65.9% 7,736 59.6% 9,304 82.0%
PDO::exec2 50.0% 144 16.5% 61 19.4% 800 6.2% 632 5.6%
implode1 25.0% 5 0.6% 6 1.9% 1,080 8.3% 752 6.6%