Diff Report
Run #5196effcededb: XHProf Run (Namespace=drupal-perf-steveoliver)
vs.
Run #5196ef15c751e: XHProf Run (Namespace=drupal-perf-steveoliver)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #5196effcededbRun #5196ef15c751eDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,238 2,108 870 70.3%
Incl. Wall Time (microsec) per call 1,238 2,108 870 70.3%
Excl. Wall Time (microsec)149 235 86 57.7%
Incl. CPU (microsecs)0 4,000 4,000 N/A%
Incl. CPU (microsecs) per call 0 4,000 4,000 N/A%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)8,816 8,816 0 0.0%
Incl. MemUse (bytes) per call 8,816 8,816 0 0.0%
Excl. MemUse (bytes)4,832 4,832 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% 870 0.1% 4,000 100.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function86 9.9% 0 0.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 870 100.0% 4,000 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 439 50.5% 0 0.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 336 38.6% 4,000 100.0% 0 N/A% 0 N/A%
implode0 N/A% 9 1.0% 0 0.0% 0 N/A% 0 N/A%