Diff Report
Run #523f27198f838: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #523f26a22745b: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #523f27198f838Run #523f26a22745bDiffDiff%
Number of Function Calls146 146 0 0.0%
Incl. Wall Time (microsec)22,256 22,598 342 1.5%
Incl. Wall Time (microsec) per call 152 155 2 1.5%
Excl. Wall Time (microsec)2,446 2,305 -141 -5.8%
Incl. CPU (microsecs)19,107 19,554 447 2.3%
Incl. CPU (microsecs) per call 131 134 3 2.3%
Excl. CPU (microsec)2,206 2,099 -107 -4.9%
Incl. MemUse (bytes)2,609,712 2,609,712 0 0.0%
Incl. MemUse (bytes) per call 17,875 17,875 0 0.0%
Excl. MemUse (bytes)-422,032 -422,032 0 0.0%
Incl. PeakMemUse (bytes)2,982,696 2,982,696 0 0.0%
Incl. PeakMemUse (bytes) per call 20,429 20,429 0 0.0%
Excl. PeakMemUse (bytes)8,624 8,624 0 0.0%

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% 342 30.0% 447 538.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-141 -41.2% -107 -23.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 342 100.0% 447 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 807 236.0% 809 181.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -314 -91.8% -244 -54.6% 0 N/A% 0 N/A%
explode0 N/A% -10 -2.9% -11 -2.5% 0 N/A% 0 N/A%