Diff Report
Run #519c0a514701f: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c0a965645d: 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 #519c0a514701fRun #519c0a965645dDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)1,066 1,063 -3 -0.3%
Incl. Wall Time (microsec) per call 152 152 -0 -0.3%
Excl. Wall Time (microsec)164 161 -3 -1.8%
Incl. CPU (microsecs)941 939 -2 -0.2%
Incl. CPU (microsecs) per call 134 134 -0 -0.2%
Excl. CPU (microsec)150 146 -4 -2.7%
Incl. MemUse (bytes)38,588 38,588 0 0.0%
Incl. MemUse (bytes) per call 5,513 5,513 0 0.0%
Excl. MemUse (bytes)-11,528 -11,528 0 0.0%
Incl. PeakMemUse (bytes)62,640 62,640 0 0.0%
Incl. PeakMemUse (bytes) per call 8,949 8,949 0 0.0%
Excl. PeakMemUse (bytes)640 640 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% -3 -0.2% -2 -0.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-3 -100.0% -4 -200.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -3 -100.0% -2 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 12 400.0% 12 600.0% 0 N/A% 0 N/A%
unserialize@10 N/A% -12 -400.0% -11 -550.0% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 1 50.0% 0 N/A% 0 N/A%