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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #536ffcbacf96dRun #536ffbe232db1DiffDiff%
Number of Function Calls70 70 0 0.0%
Incl. Wall Time (microsec)40,284 41,092 808 2.0%
Incl. Wall Time (microsec) per call 575 587 12 2.0%
Excl. Wall Time (microsec)1,339 1,363 24 1.8%
Incl. CPU (microsecs)39,237 40,025 788 2.0%
Incl. CPU (microsecs) per call 561 572 11 2.0%
Excl. CPU (microsec)1,219 1,206 -13 -1.1%
Incl. MemUse (bytes)4,357,336 4,356,864 -472 -0.0%
Incl. MemUse (bytes) per call 62,248 62,241 -7 -0.0%
Excl. MemUse (bytes)-827,840 -827,664 176 0.0%
Incl. PeakMemUse (bytes)5,160,592 5,158,864 -1,728 -0.0%
Incl. PeakMemUse (bytes) per call 73,723 73,698 -25 -0.0%
Excl. PeakMemUse (bytes)5,104 5,232 128 2.5%

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 Function24 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%