Diff Report
Run #519ff921aa26d: XHProf Run (Namespace=drupal-perf-ezeedub)
vs.
Run #519ff7ed8fdf9: XHProf Run (Namespace=drupal-perf-ezeedub)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519ff921aa26dRun #519ff7ed8fdf9DiffDiff%
Number of Function Calls84 83 -1 -1.2%
Incl. Wall Time (microsec)30,774 30,415 -359 -1.2%
Incl. Wall Time (microsec) per call 366 366 0 0.0%
Excl. Wall Time (microsec)2,065 2,014 -51 -2.5%
Incl. CPU (microsecs)28,001 32,001 4,000 14.3%
Incl. CPU (microsecs) per call 333 386 52 15.7%
Excl. CPU (microsec)4,000 0 -4,000 -100.0%
Incl. MemUse (bytes)732,940 732,584 -356 -0.0%
Incl. MemUse (bytes) per call 8,725 8,826 101 1.2%
Excl. MemUse (bytes)-172,432 -172,132 300 0.2%
Incl. PeakMemUse (bytes)1,109,616 1,107,200 -2,416 -0.2%
Incl. PeakMemUse (bytes) per call 13,210 13,340 130 1.0%
Excl. PeakMemUse (bytes)2,680 2,744 64 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::prepareItem-1 -33.3% -359 -8.0% 4,000 50.0% -356 -2.0% -2,416 -12.1%
Exclusive Metrics Diff for Current Function-51 -14.2% -4,000 -100.0% 300 84.3% 64 2.6%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple-1 -100.0% -359 -100.0% 4,000 100.0% -356 -100.0% -2,416 -100.0%
Child functions
unserialize-1 -50.0% -292 -81.3% 0 0.0% -396 -111.2% -2,356 -97.5%
Drupal\Core\Cache\DatabaseBackend::checksumTags-1 -50.0% -13 -3.6% 8,000 200.0% -260 -73.0% -124 -5.1%
explode0 0.0% -3 -0.8% 0 0.0% 0 0.0% 0 0.0%