Diff Report
Run #521962849973a: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5219624c55207: 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 #521962849973aRun #5219624c55207DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)625 889 264 42.2%
Incl. Wall Time (microsec) per call 625 889 264 42.2%
Excl. Wall Time (microsec)37 42 5 13.5%
Incl. CPU (microsecs)226 309 83 36.7%
Incl. CPU (microsecs) per call 226 309 83 36.7%
Excl. CPU (microsec)33 37 4 12.1%
Incl. MemUse (bytes)13,008 13,008 0 0.0%
Incl. MemUse (bytes) per call 13,008 13,008 0 0.0%
Excl. MemUse (bytes)3,320 3,320 0 0.0%
Incl. PeakMemUse (bytes)12,432 12,432 0 0.0%
Incl. PeakMemUse (bytes) per call 12,432 12,432 0 0.0%
Excl. PeakMemUse (bytes)1,944 1,944 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% 264 498.1% 83 65.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function5 1.9% 4 4.8% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 264 100.0% 83 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 250 94.7% 65 78.3% 0 N/A% 0 N/A%
PDO::exec0 N/A% 8 3.0% 12 14.5% 0 N/A% 0 N/A%
implode0 N/A% 1 0.4% 2 2.4% 0 N/A% 0 N/A%