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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51a944519b58cRun #51a9459592df6DiffDiff%
Number of Function Calls118 118 0 0.0%
Incl. Wall Time (microsec)25,418 24,741 -677 -2.7%
Incl. Wall Time (microsec) per call 215 210 -6 -2.7%
Excl. Wall Time (microsec)1,598 1,555 -43 -2.7%
Incl. CPU (microsecs)21,169 20,702 -467 -2.2%
Incl. CPU (microsecs) per call 179 175 -4 -2.2%
Excl. CPU (microsec)1,436 1,404 -32 -2.2%
Incl. MemUse (bytes)1,702,040 1,705,392 3,352 0.2%
Incl. MemUse (bytes) per call 14,424 14,452 28 0.2%
Excl. MemUse (bytes)-393,808 -394,424 -616 -0.2%
Incl. PeakMemUse (bytes)2,312,664 2,316,648 3,984 0.2%
Incl. PeakMemUse (bytes) per call 19,599 19,633 34 0.2%
Excl. PeakMemUse (bytes)7,264 7,328 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 Function-43 -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%