Diff Report
Run #51901ff69a8a6: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51902129e4489: XHProf Run (Namespace=drupal-perf-cottser)
Tip
Click a function name below to drill down.

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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51901ff69a8a6Run #51902129e4489DiffDiff%
Number of Function Calls92 92 0 0.0%
Incl. Wall Time (microsec)22,430 22,639 209 0.9%
Incl. Wall Time (microsec) per call 244 246 2 0.9%
Excl. Wall Time (microsec)1,367 1,415 48 3.5%
Incl. CPU (microsecs)18,590 18,624 34 0.2%
Incl. CPU (microsecs) per call 202 202 0 0.2%
Excl. CPU (microsec)1,242 1,314 72 5.8%
Incl. MemUse (bytes)1,928,848 1,928,848 0 0.0%
Incl. MemUse (bytes) per call 20,966 20,966 0 0.0%
Excl. MemUse (bytes)-273,872 -273,872 0 0.0%
Incl. PeakMemUse (bytes)2,586,752 2,586,752 0 0.0%
Incl. PeakMemUse (bytes) per call 28,117 28,117 0 0.0%
Excl. PeakMemUse (bytes)9,720 9,720 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% 209 387.0% 34 45.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function48 23.0% 72 211.8% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 209 100.0% 34 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 354 169.4% 100 294.1% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -193 -92.3% -135 -397.1% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -3 -8.8% 0 N/A% 0 N/A%