Diff Report
Run #52c2677cc22b0: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52c2691acb42f: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #52c2677cc22b0Run #52c2691acb42fDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)549 715 166 30.2%
Incl. Wall Time (microsec) per call 549 715 166 30.2%
Excl. Wall Time (microsec)41 52 11 26.8%
Incl. CPU (microsecs)299 372 73 24.4%
Incl. CPU (microsecs) per call 299 372 73 24.4%
Excl. CPU (microsec)38 45 7 18.4%
Incl. MemUse (bytes)13,296 13,296 0 0.0%
Incl. MemUse (bytes) per call 13,296 13,296 0 0.0%
Excl. MemUse (bytes)3,136 3,136 0 0.0%
Incl. PeakMemUse (bytes)12,000 12,000 0 0.0%
Incl. PeakMemUse (bytes) per call 12,000 12,000 0 0.0%
Excl. PeakMemUse (bytes)1,856 1,856 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% 166 2.5% 73 1.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function11 6.6% 7 9.6% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 166 100.0% 73 100.0% 0 N/A% 0 N/A%
Child functions
PDO::exec0 N/A% 80 48.2% 39 53.4% 0 N/A% 0 N/A%
PDO::__construct0 N/A% 74 44.6% 23 31.5% 0 N/A% 0 N/A%
implode0 N/A% 1 0.6% 4 5.5% 0 N/A% 0 N/A%