Diff Report
Run #519c1681d41e5: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c153c76aa0: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #519c1681d41e5Run #519c153c76aa0DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)692 697 5 0.7%
Incl. Wall Time (microsec) per call 99 100 1 0.7%
Excl. Wall Time (microsec)113 110 -3 -2.7%
Incl. CPU (microsecs)594 599 5 0.8%
Incl. CPU (microsecs) per call 85 86 1 0.8%
Excl. CPU (microsec)97 97 0 0.0%
Incl. MemUse (bytes)78,088 78,088 0 0.0%
Incl. MemUse (bytes) per call 11,155 11,155 0 0.0%
Excl. MemUse (bytes)-11,416 -11,416 0 0.0%
Incl. PeakMemUse (bytes)97,992 98,056 64 0.1%
Incl. PeakMemUse (bytes) per call 13,999 14,008 9 0.1%
Excl. PeakMemUse (bytes)696 696 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% 5 0.1% 5 0.2% 0 0.0% 64 0.1%
Exclusive Metrics Diff for Current Function-3 -60.0% 0 0.0% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 5 100.0% 5 100.0% 0 N/A% 64 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 12 240.0% 3 60.0% 0 N/A% 40 62.5%
unserialize@10 N/A% -4 -80.0% 1 20.0% 0 N/A% 24 37.5%
explode0 N/A% 0 0.0% 1 20.0% 0 N/A% 0 0.0%