Diff Report
Run #519ff693b4ca2: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519ff79b9e81a: 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 #519ff693b4ca2Run #519ff79b9e81aDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)850 847 -3 -0.4%
Incl. Wall Time (microsec) per call 121 121 -0 -0.4%
Excl. Wall Time (microsec)124 125 1 0.8%
Incl. CPU (microsecs)835 831 -4 -0.5%
Incl. CPU (microsecs) per call 119 119 -1 -0.5%
Excl. CPU (microsec)117 112 -5 -4.3%
Incl. MemUse (bytes)75,816 75,816 0 0.0%
Incl. MemUse (bytes) per call 10,831 10,831 0 0.0%
Excl. MemUse (bytes)-11,728 -11,728 0 0.0%
Incl. PeakMemUse (bytes)67,280 67,280 0 0.0%
Incl. PeakMemUse (bytes) per call 9,611 9,611 0 0.0%
Excl. PeakMemUse (bytes)1,680 1,680 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% -3 -0.5% -4 -0.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 33.3% -5 -125.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -3 -100.0% -4 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize@10 N/A% -3 -100.0% -1 -25.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -1 -33.3% 1 25.0% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 1 25.0% 0 N/A% 0 N/A%