Diff Report
Run #51ec227a9cea0: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec243650361: 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 #51ec227a9cea0Run #51ec243650361DiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)846 868 22 2.6%
Incl. Wall Time (microsec) per call 94 96 2 2.6%
Excl. Wall Time (microsec)108 117 9 8.3%
Incl. CPU (microsecs)783 756 -27 -3.4%
Incl. CPU (microsecs) per call 87 84 -3 -3.4%
Excl. CPU (microsec)98 110 12 12.2%
Incl. MemUse (bytes)82,288 82,288 0 0.0%
Incl. MemUse (bytes) per call 9,143 9,143 0 0.0%
Excl. MemUse (bytes)-13,800 -13,800 0 0.0%
Incl. PeakMemUse (bytes)98,344 98,352 8 0.0%
Incl. PeakMemUse (bytes) per call 10,927 10,928 1 0.0%
Excl. PeakMemUse (bytes)1,536 1,472 -64 -4.2%

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% 22 0.3% -27 -0.4% 0 0.0% 8 0.0%
Exclusive Metrics Diff for Current Function9 40.9% 12 44.4% 0 N/A% -64 -800.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 22 100.0% -27 -100.0% 0 N/A% 8 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 33 150.0% -22 -81.5% 0 N/A% 16 200.0%
unserialize@10 N/A% -20 -90.9% -18 -66.7% 0 N/A% 56 700.0%
explode0 N/A% 0 0.0% 1 3.7% 0 N/A% 0 0.0%