Diff Report
Run #51902129e4489: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51901ff69a8a6: 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 #51902129e4489Run #51901ff69a8a6DiffDiff%
Number of Function Calls92 92 0 0.0%
Incl. Wall Time (microsec)22,639 22,430 -209 -0.9%
Incl. Wall Time (microsec) per call 246 244 -2 -0.9%
Excl. Wall Time (microsec)1,415 1,367 -48 -3.4%
Incl. CPU (microsecs)18,624 18,590 -34 -0.2%
Incl. CPU (microsecs) per call 202 202 -0 -0.2%
Excl. CPU (microsec)1,314 1,242 -72 -5.5%
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 Function-48 -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%