Diff Report
Run #519c0a965645d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c0a514701f: 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 #519c0a965645dRun #519c0a514701fDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)1,063 1,066 3 0.3%
Incl. Wall Time (microsec) per call 152 152 0 0.3%
Excl. Wall Time (microsec)161 164 3 1.9%
Incl. CPU (microsecs)939 941 2 0.2%
Incl. CPU (microsecs) per call 134 134 0 0.2%
Excl. CPU (microsec)146 150 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 Function3 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%