Diff Report
Run #51978d4d92dd9: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51978cc86c728: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #51978d4d92dd9Run #51978cc86c728DiffDiff%
Number of Function Calls8 8 0 0.0%
Incl. Wall Time (microsec)730 641 -89 -12.2%
Incl. Wall Time (microsec) per call 91 80 -11 -12.2%
Excl. Wall Time (microsec)112 109 -3 -2.7%
Incl. CPU (microsecs)587 575 -12 -2.0%
Incl. CPU (microsecs) per call 73 72 -2 -2.0%
Excl. CPU (microsec)103 100 -3 -2.9%
Incl. MemUse (bytes)82,336 82,336 0 0.0%
Incl. MemUse (bytes) per call 10,292 10,292 0 0.0%
Excl. MemUse (bytes)-13,312 -13,312 0 0.0%
Incl. PeakMemUse (bytes)69,352 69,264 -88 -0.1%
Incl. PeakMemUse (bytes) per call 8,669 8,658 -11 -0.1%
Excl. PeakMemUse (bytes)2,304 2,304 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% -89 -35.7% -12 -9.9% 0 0.0% -88 -0.4%
Exclusive Metrics Diff for Current Function-3 -3.4% -3 -25.0% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -89 -100.0% -12 -100.0% 0 N/A% -88 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -91 -102.2% -14 -116.7% 0 N/A% 0 0.0%
unserialize@10 N/A% 5 5.6% 5 41.7% 0 N/A% -88 -100.0%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 0.0%