Diff Report
Run #519eb7a1537f7: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eb880e5974: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #519eb7a1537f7Run #519eb880e5974DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,370 1,026 -344 -25.1%
Incl. Wall Time (microsec) per call 1,370 1,026 -344 -25.1%
Excl. Wall Time (microsec)69 81 12 17.4%
Incl. CPU (microsecs)358 364 6 1.7%
Incl. CPU (microsecs) per call 358 364 6 1.7%
Excl. CPU (microsec)60 68 8 13.3%
Incl. MemUse (bytes)3,568 3,568 0 0.0%
Incl. MemUse (bytes) per call 3,568 3,568 0 0.0%
Excl. MemUse (bytes)1,812 1,812 0 0.0%
Incl. PeakMemUse (bytes)3,280 3,280 0 0.0%
Incl. PeakMemUse (bytes) per call 3,280 3,280 0 0.0%
Excl. PeakMemUse (bytes)1,656 1,656 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% -344 -9.6% 6 5.8% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function12 3.5% 8 133.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -344 -100.0% 6 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -387 -112.5% -12 -200.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 29 8.4% 8 133.3% 0 N/A% 0 N/A%
implode0 N/A% 2 0.6% 2 33.3% 0 N/A% 0 N/A%