Diff Report
Run #519eadc55e057: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519ead70538d1: 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 #519eadc55e057Run #519ead70538d1DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)1,059 1,049 -10 -0.9%
Incl. Wall Time (microsec) per call 151 150 -1 -0.9%
Excl. Wall Time (microsec)167 152 -15 -9.0%
Incl. CPU (microsecs)941 928 -13 -1.4%
Incl. CPU (microsecs) per call 134 133 -2 -1.4%
Excl. CPU (microsec)156 140 -16 -10.3%
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 Function-15 -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
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%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%