Diff Report
Run #536ffbe232db1: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #536ffcbacf96d: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #536ffbe232db1Run #536ffcbacf96dDiffDiff%
Number of Function Calls70 70 0 0.0%
Incl. Wall Time (microsec)41,092 40,284 -808 -2.0%
Incl. Wall Time (microsec) per call 587 575 -12 -2.0%
Excl. Wall Time (microsec)1,363 1,339 -24 -1.8%
Incl. CPU (microsecs)40,025 39,237 -788 -2.0%
Incl. CPU (microsecs) per call 572 561 -11 -2.0%
Excl. CPU (microsec)1,206 1,219 13 1.1%
Incl. MemUse (bytes)4,356,864 4,357,336 472 0.0%
Incl. MemUse (bytes) per call 62,241 62,248 7 0.0%
Excl. MemUse (bytes)-827,664 -827,840 -176 -0.0%
Incl. PeakMemUse (bytes)5,158,864 5,160,592 1,728 0.0%
Incl. PeakMemUse (bytes) per call 73,698 73,723 25 0.0%
Excl. PeakMemUse (bytes)5,232 5,104 -128 -2.4%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem [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\Cache\DatabaseBackend::prepareItem0 N/A% -808 -51.0% -788 -43.8% 472 1.3% 1,728 4.9%
Exclusive Metrics Diff for Current Function-24 -3.0% 13 1.6% -176 -37.3% -128 -7.4%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -808 -100.0% -788 -100.0% 472 100.0% 1,728 100.0%
Child functions
unserialize0 N/A% -566 -70.0% -552 -70.1% 648 137.3% 808 46.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -216 -26.7% -239 -30.3% 0 0.0% 1,136 65.7%
explode0 N/A% -1 -0.1% -9 -1.1% 0 0.0% 0 0.0%
spl_autoload_call0 N/A% -1 -0.1% -1 -0.1% 0 0.0% -88 -5.1%