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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5251f6e1e32d5Run #5251f592ab279DiffDiff%
Number of Function Calls127 127 0 0.0%
Incl. Wall Time (microsec)16,260 16,584 324 2.0%
Incl. Wall Time (microsec) per call 128 131 3 2.0%
Excl. Wall Time (microsec)1,891 1,975 84 4.4%
Incl. CPU (microsecs)13,602 14,009 407 3.0%
Incl. CPU (microsecs) per call 107 110 3 3.0%
Excl. CPU (microsec)1,698 1,799 101 5.9%
Incl. MemUse (bytes)1,974,320 1,974,008 -312 -0.0%
Incl. MemUse (bytes) per call 15,546 15,543 -2 -0.0%
Excl. MemUse (bytes)-470,864 -470,784 80 0.0%
Incl. PeakMemUse (bytes)2,519,016 2,518,048 -968 -0.0%
Incl. PeakMemUse (bytes) per call 19,835 19,827 -8 -0.0%
Excl. PeakMemUse (bytes)8,112 8,104 -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 Function84 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
unserialize0 N/A% 152 46.9% 142 34.9% -400 -128.2% -464 -47.9%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 81 25.0% 156 38.3% 0 0.0% -504 -52.1%
explode0 N/A% 7 2.2% 8 2.0% 8 2.6% 8 0.8%