Diff Report
Run #519fbf2154a5e: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fc26fe04d9: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519fbf2154a5eRun #519fc26fe04d9DiffDiff%
Number of Function Calls19 19 0 0.0%
Incl. Wall Time (microsec)958 923 -35 -3.7%
Incl. Wall Time (microsec) per call 50 49 -2 -3.7%
Excl. Wall Time (microsec)198 199 1 0.5%
Incl. CPU (microsecs)4,001 4,000 -1 -0.0%
Incl. CPU (microsecs) per call 211 211 -0 -0.0%
Excl. CPU (microsec)4,001 0 -4,001 -100.0%
Incl. MemUse (bytes)70,224 70,224 0 0.0%
Incl. MemUse (bytes) per call 3,696 3,696 0 0.0%
Excl. MemUse (bytes)-19,768 -19,768 0 0.0%
Incl. PeakMemUse (bytes)152,952 152,952 0 0.0%
Incl. PeakMemUse (bytes) per call 8,050 8,050 0 0.0%
Excl. PeakMemUse (bytes)1,468 1,468 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem [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::prepareItem0 N/A% -35 -22.9% -1 -100.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 2.9% -4,001 -400100.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -35 -100.0% -1 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -35 -100.0% 4,000 400000.0% 0 N/A% 0 N/A%
unserialize0 N/A% -1 -2.9% 0 0.0% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%