Diff Report
Run #53920c043e98b: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53920b950c201: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #53920c043e98bRun #53920b950c201DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)958 981 23 2.4%
Incl. Wall Time (microsec) per call 958 981 23 2.4%
Excl. Wall Time (microsec)77 75 -2 -2.6%
Incl. CPU (microsecs)280 304 24 8.6%
Incl. CPU (microsecs) per call 280 304 24 8.6%
Excl. CPU (microsec)63 45 -18 -28.6%
Incl. MemUse (bytes)3,444 3,444 0 0.0%
Incl. MemUse (bytes) per call 3,444 3,444 0 0.0%
Excl. MemUse (bytes)1,680 1,680 0 0.0%
Incl. PeakMemUse (bytes)3,004 3,004 0 0.0%
Incl. PeakMemUse (bytes) per call 3,004 3,004 0 0.0%
Excl. PeakMemUse (bytes)1,436 1,436 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% 23 6.4% 24 12.8% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-2 -8.7% -18 -75.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 23 100.0% 24 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 129 560.9% 31 129.2% 0 N/A% 0 N/A%
PDO::exec0 N/A% -104 -452.2% 11 45.8% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%