Diff Report
Run #523f26a22745b: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #523f27f8820ba: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #523f26a22745bRun #523f27f8820baDiffDiff%
Number of Function Calls146 146 0 0.0%
Incl. Wall Time (microsec)22,598 21,375 -1,223 -5.4%
Incl. Wall Time (microsec) per call 155 146 -8 -5.4%
Excl. Wall Time (microsec)2,305 2,274 -31 -1.3%
Incl. CPU (microsecs)19,554 18,467 -1,087 -5.6%
Incl. CPU (microsecs) per call 134 126 -7 -5.6%
Excl. CPU (microsec)2,099 2,044 -55 -2.6%
Incl. MemUse (bytes)2,609,712 2,625,688 15,976 0.6%
Incl. MemUse (bytes) per call 17,875 17,984 109 0.6%
Excl. MemUse (bytes)-422,032 -425,256 -3,224 -0.8%
Incl. PeakMemUse (bytes)2,982,696 3,002,520 19,824 0.7%
Incl. PeakMemUse (bytes) per call 20,429 20,565 136 0.7%
Excl. PeakMemUse (bytes)8,624 8,784 160 1.9%

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% -1,223 -4.9% -1,087 -4.2% 15,976 19.8% 19,824 24.4%
Exclusive Metrics Diff for Current Function-31 -2.5% -55 -5.1% -3,224 -20.2% 160 0.8%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -1,223 -100.0% -1,087 -100.0% 15,976 100.0% 19,824 100.0%
Child functions
unserialize0 N/A% -796 -65.1% -783 -72.0% 19,224 120.3% 19,000 95.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -397 -32.5% -251 -23.1% -16 -0.1% 664 3.3%
explode0 N/A% 1 0.1% 2 0.2% -8 -0.1% 0 0.0%