Diff Report
Run #52c96df6ca13b: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c96d7c36f9e: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52c96df6ca13bRun #52c96d7c36f9eDiffDiff%
Number of Function Calls85 85 0 0.0%
Incl. Wall Time (microsec)9,130 9,055 -75 -0.8%
Incl. Wall Time (microsec) per call 107 107 -1 -0.8%
Excl. Wall Time (microsec)831 819 -12 -1.4%
Incl. CPU (microsecs)8,268 8,174 -94 -1.1%
Incl. CPU (microsecs) per call 97 96 -1 -1.1%
Excl. CPU (microsec)731 757 26 3.6%
Incl. MemUse (bytes)1,766,792 1,766,792 0 0.0%
Incl. MemUse (bytes) per call 20,786 20,786 0 0.0%
Excl. MemUse (bytes)-264,296 -264,296 0 0.0%
Incl. PeakMemUse (bytes)2,082,496 2,082,496 0 0.0%
Incl. PeakMemUse (bytes) per call 24,500 24,500 0 0.0%
Excl. PeakMemUse (bytes)7,976 7,976 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% -75 -60.0% -94 -11.8% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-12 -16.0% 26 27.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -75 -100.0% -94 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -71 -94.7% -84 -89.4% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 9 12.0% -23 -24.5% 0 N/A% 0 N/A%
explode0 N/A% -1 -1.3% -13 -13.8% 0 N/A% 0 N/A%