Diff Report
Run #519de8fbb9479: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519de96d52213: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519de8fbb9479Run #519de96d52213DiffDiff%
Number of Function Calls117 117 0 0.0%
Incl. Wall Time (microsec)34,158 33,630 -528 -1.5%
Incl. Wall Time (microsec) per call 292 287 -5 -1.5%
Excl. Wall Time (microsec)1,601 1,566 -35 -2.2%
Incl. CPU (microsecs)28,988 28,218 -770 -2.7%
Incl. CPU (microsecs) per call 248 241 -7 -2.7%
Excl. CPU (microsec)1,467 1,368 -99 -6.7%
Incl. MemUse (bytes)2,043,520 2,043,520 0 0.0%
Incl. MemUse (bytes) per call 17,466 17,466 0 0.0%
Excl. MemUse (bytes)-576,840 -576,840 0 0.0%
Incl. PeakMemUse (bytes)2,437,696 2,437,696 0 0.0%
Incl. PeakMemUse (bytes) per call 20,835 20,835 0 0.0%
Excl. PeakMemUse (bytes)4,456 4,456 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% -528 -32.1% -770 -42.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-35 -6.6% -99 -12.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -528 -100.0% -770 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -253 -47.9% -512 -66.5% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -231 -43.8% -157 -20.4% 0 N/A% 0 N/A%
explode0 N/A% -9 -1.7% -2 -0.3% 0 N/A% 0 N/A%