Diff Report
Run #519fbf2154a5e: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fc2983e6a9: 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 #519fc2983e6a9DiffDiff%
Number of Function Calls19 19 0 0.0%
Incl. Wall Time (microsec)958 940 -18 -1.9%
Incl. Wall Time (microsec) per call 50 49 -1 -1.9%
Excl. Wall Time (microsec)198 212 14 7.1%
Incl. CPU (microsecs)4,001 0 -4,001 -100.0%
Incl. CPU (microsecs) per call 211 0 -211 -100.0%
Excl. CPU (microsec)4,001 0 -4,001 -100.0%
Incl. MemUse (bytes)70,224 70,128 -96 -0.1%
Incl. MemUse (bytes) per call 3,696 3,691 -5 -0.1%
Excl. MemUse (bytes)-19,768 -19,552 216 1.1%
Incl. PeakMemUse (bytes)152,952 155,212 2,260 1.5%
Incl. PeakMemUse (bytes) per call 8,050 8,169 119 1.5%
Excl. PeakMemUse (bytes)1,468 1,512 44 3.0%

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% -18 -1.8% -4,001 -200050.0% -96 -0.0% 2,260 1.0%
Exclusive Metrics Diff for Current Function14 77.8% -4,001 -100.0% 216 225.0% 44 1.9%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -18 -100.0% -4,001 -100.0% -96 -100.0% 2,260 100.0%
Child functions
explode0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
unserialize0 N/A% 11 61.1% 0 0.0% -312 -325.0% 2,164 95.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -43 -238.9% 0 0.0% 0 0.0% 52 2.3%