Diff Report
Run #544333b05173f: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #54433ad6a7755: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #544333b05173fRun #54433ad6a7755DiffDiff%
Number of Function Calls70 70 0 0.0%
Incl. Wall Time (microsec)9,900 10,609 709 7.2%
Incl. Wall Time (microsec) per call 141 152 10 7.2%
Excl. Wall Time (microsec)1,079 1,127 48 4.4%
Incl. CPU (microsecs)9,529 10,212 683 7.2%
Incl. CPU (microsecs) per call 136 146 10 7.2%
Excl. CPU (microsec)908 965 57 6.3%
Incl. MemUse (bytes)1,494,184 1,494,256 72 0.0%
Incl. MemUse (bytes) per call 21,345 21,347 1 0.0%
Excl. MemUse (bytes)-209,736 -209,704 32 0.0%
Incl. PeakMemUse (bytes)1,759,696 1,759,984 288 0.0%
Incl. PeakMemUse (bytes) per call 25,139 25,143 4 0.0%
Excl. PeakMemUse (bytes)1,704 1,664 -40 -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::prepareItem0 N/A% 709 0.8% 683 0.8% 72 0.1% 288 0.5%
Exclusive Metrics Diff for Current Function48 6.8% 57 8.3% 32 44.4% -40 -13.9%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 709 100.0% 683 100.0% 72 100.0% 288 100.0%
Child functions
unserialize0 N/A% 402 56.7% 323 47.3% 32 44.4% -192 -66.7%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 210 29.6% 275 40.3% 0 0.0% 336 116.7%
explode0 N/A% 57 8.0% 36 5.3% 8 11.1% 184 63.9%
spl_autoload_call0 N/A% -8 -1.1% -8 -1.2% 0 0.0% 0 0.0%