Diff Report
Run #519ff693b4ca2: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519ff7de62889: 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 #519ff7de62889DiffDiff%
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 60 2 3.4%
Incl. CPU (microsecs)211 203 -8 -3.8%
Incl. CPU (microsecs) per call 211 203 -8 -3.8%
Excl. CPU (microsec)48 51 3 6.2%
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 -0.5% -8 -0.7% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function2 33.3% 3 37.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -6 -100.0% -8 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::exec0 N/A% -22 -366.7% -6 -75.0% 0 N/A% 0 N/A%
PDO::__construct0 N/A% 14 233.3% -6 -75.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 1 12.5% 0 N/A% 0 N/A%