Diff Report
Run #5251f592ab279: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #5251f6e1e32d5: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5251f592ab279Run #5251f6e1e32d5DiffDiff%
Number of Function Calls127 127 0 0.0%
Incl. Wall Time (microsec)16,584 16,260 -324 -2.0%
Incl. Wall Time (microsec) per call 131 128 -3 -2.0%
Excl. Wall Time (microsec)1,975 1,891 -84 -4.3%
Incl. CPU (microsecs)14,009 13,602 -407 -2.9%
Incl. CPU (microsecs) per call 110 107 -3 -2.9%
Excl. CPU (microsec)1,799 1,698 -101 -5.6%
Incl. MemUse (bytes)1,974,008 1,974,320 312 0.0%
Incl. MemUse (bytes) per call 15,543 15,546 2 0.0%
Excl. MemUse (bytes)-470,784 -470,864 -80 -0.0%
Incl. PeakMemUse (bytes)2,518,048 2,519,016 968 0.0%
Incl. PeakMemUse (bytes) per call 19,827 19,835 8 0.0%
Excl. PeakMemUse (bytes)8,104 8,112 8 0.1%

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% -324 -22.7% -407 -24.1% 312 0.3% 968 0.7%
Exclusive Metrics Diff for Current Function-84 -25.9% -101 -24.8% -80 -25.6% 8 0.8%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -324 -100.0% -407 -100.0% 312 100.0% 968 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -81 -25.0% -156 -38.3% 0 0.0% 504 52.1%
unserialize0 N/A% -152 -46.9% -142 -34.9% 400 128.2% 464 47.9%
explode0 N/A% -7 -2.2% -8 -2.0% -8 -2.6% -8 -0.8%