Diff Report
Run #519de2415c35a: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519de1c349c58: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519de2415c35aRun #519de1c349c58DiffDiff%
Number of Function Calls121 121 0 0.0%
Incl. Wall Time (microsec)16,690 17,096 406 2.4%
Incl. Wall Time (microsec) per call 138 141 3 2.4%
Excl. Wall Time (microsec)1,754 1,801 47 2.7%
Incl. CPU (microsecs)14,084 14,269 185 1.3%
Incl. CPU (microsecs) per call 116 118 2 1.3%
Excl. CPU (microsec)1,597 1,646 49 3.1%
Incl. MemUse (bytes)2,220,344 2,220,344 0 0.0%
Incl. MemUse (bytes) per call 18,350 18,350 0 0.0%
Excl. MemUse (bytes)-401,320 -401,320 0 0.0%
Incl. PeakMemUse (bytes)2,247,248 2,247,248 0 0.0%
Incl. PeakMemUse (bytes) per call 18,572 18,572 0 0.0%
Excl. PeakMemUse (bytes)6,352 6,352 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% 406 53.8% 185 58.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function47 11.6% 49 26.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 406 100.0% 185 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 223 54.9% 93 50.3% 0 N/A% 0 N/A%
unserialize0 N/A% 127 31.3% 35 18.9% 0 N/A% 0 N/A%
explode0 N/A% 9 2.2% 8 4.3% 0 N/A% 0 N/A%