Diff Report
Run #519ead70538d1: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eadc55e057: 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 #519ead70538d1Run #519eadc55e057DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)1,049 1,059 10 1.0%
Incl. Wall Time (microsec) per call 150 151 1 1.0%
Excl. Wall Time (microsec)152 167 15 9.9%
Incl. CPU (microsecs)928 941 13 1.4%
Incl. CPU (microsecs) per call 133 134 2 1.4%
Excl. CPU (microsec)140 156 16 11.4%
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)62,696 62,696 0 0.0%
Incl. PeakMemUse (bytes) per call 8,957 8,957 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% 10 0.8% 13 5.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function15 150.0% 16 123.1% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 10 100.0% 13 100.0% 0 N/A% 0 N/A%
Child functions
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%
unserialize@10 N/A% -15 -150.0% -12 -92.3% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 10 100.0% 9 69.2% 0 N/A% 0 N/A%