Diff Report
Run #51a9459592df6: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51a944519b58c: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51a9459592df6Run #51a944519b58cDiffDiff%
Number of Function Calls118 118 0 0.0%
Incl. Wall Time (microsec)24,741 25,418 677 2.7%
Incl. Wall Time (microsec) per call 210 215 6 2.7%
Excl. Wall Time (microsec)1,555 1,598 43 2.8%
Incl. CPU (microsecs)20,702 21,169 467 2.3%
Incl. CPU (microsecs) per call 175 179 4 2.3%
Excl. CPU (microsec)1,404 1,436 32 2.3%
Incl. MemUse (bytes)1,705,392 1,702,040 -3,352 -0.2%
Incl. MemUse (bytes) per call 14,452 14,424 -28 -0.2%
Excl. MemUse (bytes)-394,424 -393,808 616 0.2%
Incl. PeakMemUse (bytes)2,316,648 2,312,664 -3,984 -0.2%
Incl. PeakMemUse (bytes) per call 19,633 19,599 -34 -0.2%
Excl. PeakMemUse (bytes)7,328 7,264 -64 -0.9%

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% 677 6.4% 467 4.3% -3,352 -3.2% -3,984 -3.1%
Exclusive Metrics Diff for Current Function43 6.4% 32 6.9% 616 18.4% -64 -1.6%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 677 100.0% 467 100.0% -3,352 -100.0% -3,984 -100.0%
Child functions
unserialize0 N/A% 443 65.4% 330 70.7% -3,968 -118.4% -3,624 -91.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 195 28.8% 112 24.0% -16 -0.5% -312 -7.8%
explode0 N/A% -4 -0.6% -7 -1.5% 16 0.5% 16 0.4%