Diff Report
Run #51901ff69a8a6: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5190217a23e77: 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 #5190217a23e77DiffDiff%
Number of Function Calls92 92 0 0.0%
Incl. Wall Time (microsec)22,430 22,580 150 0.7%
Incl. Wall Time (microsec) per call 244 245 2 0.7%
Excl. Wall Time (microsec)1,367 1,377 10 0.7%
Incl. CPU (microsecs)18,590 18,649 59 0.3%
Incl. CPU (microsecs) per call 202 203 1 0.3%
Excl. CPU (microsec)1,242 1,253 11 0.9%
Incl. MemUse (bytes)1,928,848 1,928,792 -56 -0.0%
Incl. MemUse (bytes) per call 20,966 20,965 -1 -0.0%
Excl. MemUse (bytes)-273,872 -273,872 0 0.0%
Incl. PeakMemUse (bytes)2,586,752 2,587,304 552 0.0%
Incl. PeakMemUse (bytes) per call 28,117 28,123 6 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% 150 71.1% 59 983.3% -56 -0.2% 552 2.4%
Exclusive Metrics Diff for Current Function10 6.7% 11 18.6% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 150 100.0% 59 100.0% -56 -100.0% 552 100.0%
Child functions
unserialize0 N/A% 108 72.0% 60 101.7% -56 -100.0% 568 102.9%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 32 21.3% -9 -15.3% 0 0.0% -16 -2.9%
explode0 N/A% 0 0.0% -3 -5.1% 0 0.0% 0 0.0%