Diff Report
Run #51ec52a09990a: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec517fc2424: 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 #51ec52a09990aRun #51ec517fc2424DiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)849 945 96 11.3%
Incl. Wall Time (microsec) per call 94 105 11 11.3%
Excl. Wall Time (microsec)104 113 9 8.7%
Incl. CPU (microsecs)732 755 23 3.1%
Incl. CPU (microsecs) per call 81 84 3 3.1%
Excl. CPU (microsec)89 100 11 12.4%
Incl. MemUse (bytes)82,304 82,304 0 0.0%
Incl. MemUse (bytes) per call 9,145 9,145 0 0.0%
Excl. MemUse (bytes)-13,784 -13,784 0 0.0%
Incl. PeakMemUse (bytes)99,216 99,176 -40 -0.0%
Incl. PeakMemUse (bytes) per call 11,024 11,020 -4 -0.0%
Excl. PeakMemUse (bytes)1,616 1,616 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% 96 2.3% 23 0.5% 0 0.0% -40 -0.2%
Exclusive Metrics Diff for Current Function9 9.4% 11 47.8% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 96 100.0% 23 100.0% 0 N/A% -40 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 69 71.9% -9 -39.1% 0 N/A% 0 0.0%
unserialize@10 N/A% 18 18.8% 21 91.3% 0 N/A% -40 -100.0%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 0.0%