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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519fc26fe04d9Run #519fbf2154a5eDiffDiff%
Number of Function Calls19 19 0 0.0%
Incl. Wall Time (microsec)923 958 35 3.8%
Incl. Wall Time (microsec) per call 49 50 2 3.8%
Excl. Wall Time (microsec)199 198 -1 -0.5%
Incl. CPU (microsecs)4,000 4,001 1 0.0%
Incl. CPU (microsecs) per call 211 211 0 0.0%
Excl. CPU (microsec)0 4,001 4,001 N/A%
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 Function-1 -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%