Diff Report
Run #519ff693b4ca2: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519ff79b9e81a: 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 #519ff693b4ca2Run #519ff79b9e81aDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)385 379 -6 -1.6%
Incl. Wall Time (microsec) per call 385 379 -6 -1.6%
Excl. Wall Time (microsec)58 57 -1 -1.7%
Incl. CPU (microsecs)211 206 -5 -2.4%
Incl. CPU (microsecs) per call 211 206 -5 -2.4%
Excl. CPU (microsec)48 47 -1 -2.1%
Incl. MemUse (bytes)6,032 6,032 0 0.0%
Incl. MemUse (bytes) per call 6,032 6,032 0 0.0%
Excl. MemUse (bytes)3,160 3,160 0 0.0%
Incl. PeakMemUse (bytes)5,280 5,280 0 0.0%
Incl. PeakMemUse (bytes) per call 5,280 5,280 0 0.0%
Excl. PeakMemUse (bytes)3,072 3,072 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% -6 -1.1% -5 -0.8% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-1 -16.7% -1 -20.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -6 -100.0% -5 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -6 -100.0% -3 -60.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 1 16.7% -2 -40.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 1 20.0% 0 N/A% 0 N/A%