Diff Report
Run #519fbb3f5c2a0: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fbca569199: 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 #519fbb3f5c2a0Run #519fbca569199DiffDiff%
Number of Function Calls8 8 0 0.0%
Incl. Wall Time (microsec)745 688 -57 -7.7%
Incl. Wall Time (microsec) per call 93 86 -7 -7.7%
Excl. Wall Time (microsec)112 113 1 0.9%
Incl. CPU (microsecs)618 629 11 1.8%
Incl. CPU (microsecs) per call 77 79 1 1.8%
Excl. CPU (microsec)100 99 -1 -1.0%
Incl. MemUse (bytes)81,424 81,424 0 0.0%
Incl. MemUse (bytes) per call 10,178 10,178 0 0.0%
Excl. MemUse (bytes)-12,880 -12,880 0 0.0%
Incl. PeakMemUse (bytes)75,352 75,352 0 0.0%
Incl. PeakMemUse (bytes) per call 9,419 9,419 0 0.0%
Excl. PeakMemUse (bytes)2,064 2,064 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% -57 -8.9% 11 3.8% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 1.8% -1 -9.1% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -57 -100.0% 11 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -74 -129.8% -3 -27.3% 0 N/A% 0 N/A%
unserialize@10 N/A% 16 28.1% 15 136.4% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%