Diff Report
Run #519d45fd795a4: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d44ffb3845: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #519d45fd795a4Run #519d44ffb3845DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)1,205 1,077 -128 -10.6%
Incl. Wall Time (microsec) per call 172 154 -18 -10.6%
Excl. Wall Time (microsec)165 158 -7 -4.2%
Incl. CPU (microsecs)1,032 921 -111 -10.8%
Incl. CPU (microsecs) per call 147 132 -16 -10.8%
Excl. CPU (microsec)154 143 -11 -7.1%
Incl. MemUse (bytes)38,592 38,592 0 0.0%
Incl. MemUse (bytes) per call 5,513 5,513 0 0.0%
Excl. MemUse (bytes)-11,528 -11,528 0 0.0%
Incl. PeakMemUse (bytes)62,324 62,324 0 0.0%
Incl. PeakMemUse (bytes) per call 8,903 8,903 0 0.0%
Excl. PeakMemUse (bytes)640 640 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem@1 [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@10 N/A% -128 -0.2% -111 -0.2% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-7 -5.5% -11 -9.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -128 -100.0% -111 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize@10 N/A% -83 -64.8% -83 -74.8% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -38 -29.7% -17 -15.3% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%