Diff Report
Run #519fbb3f5c2a0: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fbcb7249d1: 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 #519fbcb7249d1DiffDiff%
Number of Function Calls8 8 0 0.0%
Incl. Wall Time (microsec)745 673 -72 -9.7%
Incl. Wall Time (microsec) per call 93 84 -9 -9.7%
Excl. Wall Time (microsec)112 103 -9 -8.0%
Incl. CPU (microsecs)618 613 -5 -0.8%
Incl. CPU (microsecs) per call 77 77 -1 -0.8%
Excl. CPU (microsec)100 92 -8 -8.0%
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% -72 -18.9% -5 -1.6% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-9 -12.5% -8 -160.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -72 -100.0% -5 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -84 -116.7% -17 -340.0% 0 N/A% 0 N/A%
unserialize@10 N/A% 21 29.2% 20 400.0% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%