Diff Report
Run #51fdbca2b5409: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51fdbdbb58abc: 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 #51fdbca2b5409Run #51fdbdbb58abcDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)655 939 284 43.4%
Incl. Wall Time (microsec) per call 655 939 284 43.4%
Excl. Wall Time (microsec)39 41 2 5.1%
Incl. CPU (microsecs)259 317 58 22.4%
Incl. CPU (microsecs) per call 259 317 58 22.4%
Excl. CPU (microsec)33 34 1 3.0%
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)12,512 12,512 0 0.0%
Incl. PeakMemUse (bytes) per call 12,512 12,512 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% 284 30.0% 58 80.6% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function2 0.7% 1 1.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 284 100.0% 58 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 269 94.7% 42 72.4% 0 N/A% 0 N/A%
PDO::exec0 N/A% 12 4.2% 13 22.4% 0 N/A% 0 N/A%
implode0 N/A% 1 0.4% 2 3.4% 0 N/A% 0 N/A%