Diff Report
Run #519fbb3f5c2a0: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fbcb7249d1: 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 #519fbb3f5c2a0Run #519fbcb7249d1DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)636 594 -42 -6.6%
Incl. Wall Time (microsec) per call 636 594 -42 -6.6%
Excl. Wall Time (microsec)36 37 1 2.8%
Incl. CPU (microsecs)224 213 -11 -4.9%
Incl. CPU (microsecs) per call 224 213 -11 -4.9%
Excl. CPU (microsec)31 31 0 0.0%
Incl. MemUse (bytes)12,776 12,776 0 0.0%
Incl. MemUse (bytes) per call 12,776 12,776 0 0.0%
Excl. MemUse (bytes)3,184 3,184 0 0.0%
Incl. PeakMemUse (bytes)11,848 11,848 0 0.0%
Incl. PeakMemUse (bytes) per call 11,848 11,848 0 0.0%
Excl. PeakMemUse (bytes)1,144 1,144 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% -42 -11.0% -11 -3.4% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function1 2.4% 0 0.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -42 -100.0% -11 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -44 -104.8% -13 -118.2% 0 N/A% 0 N/A%
PDO::exec0 N/A% 1 2.4% 4 36.4% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% -2 -18.2% 0 N/A% 0 N/A%