Diff Report
Run #519dd95192eac: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519dd86a86681: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519dd95192eacRun #519dd86a86681DiffDiff%
Number of Function Calls117 117 0 0.0%
Incl. Wall Time (microsec)37,457 38,092 635 1.7%
Incl. Wall Time (microsec) per call 320 326 5 1.7%
Excl. Wall Time (microsec)1,578 1,609 31 2.0%
Incl. CPU (microsecs)31,204 31,517 313 1.0%
Incl. CPU (microsecs) per call 267 269 3 1.0%
Excl. CPU (microsec)1,450 1,474 24 1.7%
Incl. MemUse (bytes)2,070,392 2,070,392 0 0.0%
Incl. MemUse (bytes) per call 17,696 17,696 0 0.0%
Excl. MemUse (bytes)-541,376 -541,376 0 0.0%
Incl. PeakMemUse (bytes)2,431,840 2,431,840 0 0.0%
Incl. PeakMemUse (bytes) per call 20,785 20,785 0 0.0%
Excl. PeakMemUse (bytes)4,528 4,528 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% 635 55.0% 313 67.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function31 4.9% 24 7.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 635 100.0% 313 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 503 79.2% 159 50.8% 0 N/A% 0 N/A%
unserialize0 N/A% 89 14.0% 118 37.7% 0 N/A% 0 N/A%
explode0 N/A% 12 1.9% 12 3.8% 0 N/A% 0 N/A%