Diff Report
Run #519dd9ab8b74d: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519dd86a86681: 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 #519dd9ab8b74dRun #519dd86a86681DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)730 813 83 11.4%
Incl. Wall Time (microsec) per call 730 813 83 11.4%
Excl. Wall Time (microsec)41 43 2 4.9%
Incl. CPU (microsecs)284 292 8 2.8%
Incl. CPU (microsecs) per call 284 292 8 2.8%
Excl. CPU (microsec)35 35 0 0.0%
Incl. MemUse (bytes)12,848 12,872 24 0.2%
Incl. MemUse (bytes) per call 12,848 12,872 24 0.2%
Excl. MemUse (bytes)3,160 3,184 24 0.8%
Incl. PeakMemUse (bytes)12,264 12,280 16 0.1%
Incl. PeakMemUse (bytes) per call 12,264 12,280 16 0.1%
Excl. PeakMemUse (bytes)1,656 1,680 24 1.4%

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% 83 0.1% 8 0.0% 24 0.0% 16 0.0%
Exclusive Metrics Diff for Current Function2 2.4% 0 0.0% 24 100.0% 24 150.0%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 83 100.0% 8 100.0% 24 100.0% 16 100.0%
Child functions
PDO::__construct0 N/A% 79 95.2% 7 87.5% 0 0.0% -8 -50.0%
PDO::exec0 N/A% 4 4.8% 1 12.5% 0 0.0% 0 0.0%
implode0 N/A% -2 -2.4% 0 0.0% 0 0.0% 0 0.0%