Diff Report
Run #51981e3ae1e6c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51981beb768ad: 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 #51981e3ae1e6cRun #51981beb768adDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)750 928 178 23.7%
Incl. Wall Time (microsec) per call 750 928 178 23.7%
Excl. Wall Time (microsec)44 41 -3 -6.8%
Incl. CPU (microsecs)308 353 45 14.6%
Incl. CPU (microsecs) per call 308 353 45 14.6%
Excl. CPU (microsec)38 36 -2 -5.3%
Incl. MemUse (bytes)13,016 13,016 0 0.0%
Incl. MemUse (bytes) per call 13,016 13,016 0 0.0%
Excl. MemUse (bytes)3,352 3,352 0 0.0%
Incl. PeakMemUse (bytes)0 0 0 N/A%
Incl. PeakMemUse (bytes) per call 0 0 0 N/A%
Excl. PeakMemUse (bytes)0 0 0 N/A%

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% 178 144.7% 45 8.5% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-3 -1.7% -2 -4.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 178 100.0% 45 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 171 96.1% 42 93.3% 0 N/A% 0 N/A%
PDO::exec0 N/A% 10 5.6% 5 11.1% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%