Diff Report
Run #51f5bb078e5a7: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51f5bbaa8fc1d: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51f5bb078e5a7Run #51f5bbaa8fc1dDiffDiff%
Number of Function Calls105 105 0 0.0%
Incl. Wall Time (microsec)19,461 20,417 956 4.9%
Incl. Wall Time (microsec) per call 185 194 9 4.9%
Excl. Wall Time (microsec)1,549 1,576 27 1.7%
Incl. CPU (microsecs)16,263 16,526 263 1.6%
Incl. CPU (microsecs) per call 155 157 3 1.6%
Excl. CPU (microsec)1,420 1,426 6 0.4%
Incl. MemUse (bytes)2,013,112 2,021,272 8,160 0.4%
Incl. MemUse (bytes) per call 19,172 19,250 78 0.4%
Excl. MemUse (bytes)-278,272 -279,672 -1,400 -0.5%
Incl. PeakMemUse (bytes)2,534,096 2,547,680 13,584 0.5%
Incl. PeakMemUse (bytes) per call 24,134 24,264 129 0.5%
Excl. PeakMemUse (bytes)7,456 7,552 96 1.3%

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% 956 20.8% 263 6.1% 8,160 14.7% 13,584 23.8%
Exclusive Metrics Diff for Current Function27 2.8% 6 2.3% -1,400 -17.2% 96 0.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 956 100.0% 263 100.0% 8,160 100.0% 13,584 100.0%
Child functions
unserialize0 N/A% 506 52.9% 110 41.8% 9,536 116.9% 14,928 109.9%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 418 43.7% 140 53.2% 24 0.3% -1,440 -10.6%
explode0 N/A% 5 0.5% 7 2.7% 0 0.0% 0 0.0%