Diff Report
Run #519be9a13e594: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519bea2c59e7a: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519be9a13e594Run #519bea2c59e7aDiffDiff%
Number of Function Calls96 96 0 0.0%
Incl. Wall Time (microsec)33,853 34,010 157 0.5%
Incl. Wall Time (microsec) per call 353 354 2 0.5%
Excl. Wall Time (microsec)2,013 2,019 6 0.3%
Incl. CPU (microsecs)28,432 28,104 -328 -1.2%
Incl. CPU (microsecs) per call 296 293 -3 -1.2%
Excl. CPU (microsec)1,897 1,870 -27 -1.4%
Incl. MemUse (bytes)934,320 934,320 0 0.0%
Incl. MemUse (bytes) per call 9,733 9,733 0 0.0%
Excl. MemUse (bytes)-253,472 -253,472 0 0.0%
Incl. PeakMemUse (bytes)1,359,832 1,359,832 0 0.0%
Incl. PeakMemUse (bytes) per call 14,165 14,165 0 0.0%
Excl. PeakMemUse (bytes)5,804 5,804 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% 157 13.1% -328 -781.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function6 3.8% -27 -8.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 157 100.0% -328 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 314 200.0% -54 -16.5% 0 N/A% 0 N/A%
unserialize0 N/A% -150 -95.5% -237 -72.3% 0 N/A% 0 N/A%
explode0 N/A% -13 -8.3% -10 -3.0% 0 N/A% 0 N/A%