Diff Report
Run #519eb486908e7: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eb5243677d: 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 #519eb486908e7Run #519eb5243677dDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)1,055 1,056 1 0.1%
Incl. Wall Time (microsec) per call 151 151 0 0.1%
Excl. Wall Time (microsec)156 158 2 1.3%
Incl. CPU (microsecs)929 932 3 0.3%
Incl. CPU (microsecs) per call 133 133 0 0.3%
Excl. CPU (microsec)143 148 5 3.5%
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% 1 0.1% 3 0.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function2 200.0% 5 166.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 1 100.0% 3 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -3 -300.0% -4 -133.3% 0 N/A% 0 N/A%
unserialize@10 N/A% 2 200.0% 1 33.3% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 1 33.3% 0 N/A% 0 N/A%