Diff Report
Run #52d3e93cb560e: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d3e964b719c: 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 #52d3e93cb560eRun #52d3e964b719cDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)301 393 92 30.6%
Incl. Wall Time (microsec) per call 301 393 92 30.6%
Excl. Wall Time (microsec)26 30 4 15.4%
Incl. CPU (microsecs)133 181 48 36.1%
Incl. CPU (microsecs) per call 133 181 48 36.1%
Excl. CPU (microsec)23 26 3 13.0%
Incl. MemUse (bytes)13,008 13,008 0 0.0%
Incl. MemUse (bytes) per call 13,008 13,008 0 0.0%
Excl. MemUse (bytes)3,360 3,360 0 0.0%
Incl. PeakMemUse (bytes)12,696 12,696 0 0.0%
Incl. PeakMemUse (bytes) per call 12,696 12,696 0 0.0%
Excl. PeakMemUse (bytes)1,760 1,760 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% 92 30.8% 48 17.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function4 4.3% 3 6.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 92 100.0% 48 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 53 57.6% 25 52.1% 0 N/A% 0 N/A%
PDO::exec0 N/A% 34 37.0% 20 41.7% 0 N/A% 0 N/A%
implode0 N/A% 1 1.1% 0 0.0% 0 N/A% 0 N/A%