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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519ff7ed8fdf9Run #519ff921aa26dDiffDiff%
Number of Function Calls83 84 1 1.2%
Incl. Wall Time (microsec)30,415 30,774 359 1.2%
Incl. Wall Time (microsec) per call 366 366 -0 -0.0%
Excl. Wall Time (microsec)2,014 2,065 51 2.5%
Incl. CPU (microsecs)32,001 28,001 -4,000 -12.5%
Incl. CPU (microsecs) per call 386 333 -52 -13.5%
Excl. CPU (microsec)0 4,000 4,000 N/A%
Incl. MemUse (bytes)732,584 732,940 356 0.0%
Incl. MemUse (bytes) per call 8,826 8,725 -101 -1.1%
Excl. MemUse (bytes)-172,132 -172,432 -300 -0.2%
Incl. PeakMemUse (bytes)1,107,200 1,109,616 2,416 0.2%
Incl. PeakMemUse (bytes) per call 13,340 13,210 -130 -1.0%
Excl. PeakMemUse (bytes)2,744 2,680 -64 -2.3%

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::prepareItem1 33.3% 359 8.0% -4,000 -50.0% 356 2.0% 2,416 12.1%
Exclusive Metrics Diff for Current Function51 14.2% 4,000 100.0% -300 -84.3% -64 -2.6%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple1 100.0% 359 100.0% -4,000 -100.0% 356 100.0% 2,416 100.0%
Child functions
unserialize1 50.0% 292 81.3% 0 0.0% 396 111.2% 2,356 97.5%
Drupal\Core\Cache\DatabaseBackend::checksumTags1 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%