Diff Report
Run #519c04ab45451: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c03b86b1ec: 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 #519c04ab45451Run #519c03b86b1ecDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)1,183 1,051 -132 -11.2%
Incl. Wall Time (microsec) per call 169 150 -19 -11.2%
Excl. Wall Time (microsec)150 155 5 3.3%
Incl. CPU (microsecs)981 929 -52 -5.3%
Incl. CPU (microsecs) per call 140 133 -7 -5.3%
Excl. CPU (microsec)138 142 4 2.9%
Incl. MemUse (bytes)38,620 38,620 0 0.0%
Incl. MemUse (bytes) per call 5,517 5,517 0 0.0%
Excl. MemUse (bytes)-11,528 -11,528 0 0.0%
Incl. PeakMemUse (bytes)62,092 62,092 0 0.0%
Incl. PeakMemUse (bytes) per call 8,870 8,870 0 0.0%
Excl. PeakMemUse (bytes)568 568 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% -132 -21.2% -52 -3.4% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function5 3.8% 4 7.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -132 -100.0% -52 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -85 -64.4% -2 -3.8% 0 N/A% 0 N/A%
unserialize@10 N/A% -52 -39.4% -53 -101.9% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -1 -1.9% 0 N/A% 0 N/A%