Diff Report
Run #519d44ffb3845: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d45a7cd8f5: 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 #519d44ffb3845Run #519d45a7cd8f5DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)1,077 1,072 -5 -0.5%
Incl. Wall Time (microsec) per call 154 153 -1 -0.5%
Excl. Wall Time (microsec)158 158 0 0.0%
Incl. CPU (microsecs)921 917 -4 -0.4%
Incl. CPU (microsecs) per call 132 131 -1 -0.4%
Excl. CPU (microsec)143 147 4 2.8%
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% -5 -0.2% -4 -0.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function0 0.0% 4 100.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -5 -100.0% -4 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -7 -140.0% -7 -175.0% 0 N/A% 0 N/A%
unserialize@10 N/A% 2 40.0% 0 0.0% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -1 -25.0% 0 N/A% 0 N/A%