Diff Report
Run #519be9a13e594: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519bea2c59e7a: 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 #519be9a13e594Run #519bea2c59e7aDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)1,121 1,072 -49 -4.4%
Incl. Wall Time (microsec) per call 160 153 -7 -4.4%
Excl. Wall Time (microsec)155 152 -3 -1.9%
Incl. CPU (microsecs)937 920 -17 -1.8%
Incl. CPU (microsecs) per call 134 131 -2 -1.8%
Excl. CPU (microsec)147 139 -8 -5.4%
Incl. MemUse (bytes)38,612 38,612 0 0.0%
Incl. MemUse (bytes) per call 5,516 5,516 0 0.0%
Excl. MemUse (bytes)-11,528 -11,528 0 0.0%
Incl. PeakMemUse (bytes)62,648 62,648 0 0.0%
Incl. PeakMemUse (bytes) per call 8,950 8,950 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% -49 -4.1% -17 -40.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-3 -6.1% -8 -47.1% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -49 -100.0% -17 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -43 -87.8% -8 -47.1% 0 N/A% 0 N/A%
unserialize@10 N/A% -3 -6.1% -1 -5.9% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%