Diff Report
Run #5197310fa6a63: XHProf Run (Namespace=drupal-perf-steveoliver)
vs.
Run #51972fb0786ef: XHProf Run (Namespace=drupal-perf-steveoliver)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5197310fa6a63Run #51972fb0786efDiffDiff%
Number of Function Calls119 119 0 0.0%
Incl. Wall Time (microsec)631,934 630,527 -1,407 -0.2%
Incl. Wall Time (microsec) per call 5,310 5,299 -12 -0.2%
Excl. Wall Time (microsec)31,550 31,482 -68 -0.2%
Incl. CPU (microsecs)60,004 48,004 -12,000 -20.0%
Incl. CPU (microsecs) per call 504 403 -101 -20.0%
Excl. CPU (microsec)4,000 0 -4,000 -100.0%
Incl. MemUse (bytes)2,976,680 2,976,720 40 0.0%
Incl. MemUse (bytes) per call 25,014 25,014 0 0.0%
Excl. MemUse (bytes)-227,584 -227,592 -8 -0.0%
Incl. PeakMemUse (bytes)3,412,128 3,411,912 -216 -0.0%
Incl. PeakMemUse (bytes) per call 28,673 28,672 -2 -0.0%
Excl. PeakMemUse (bytes)10,400 10,400 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% -1,407 -0.5% -12,000 -50.0% 40 0.0% -216 -0.0%
Exclusive Metrics Diff for Current Function-68 -4.8% -4,000 -33.3% -8 -20.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -1,407 -100.0% -12,000 -100.0% 40 100.0% -216 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -768 -54.6% -8,000 -66.7% 0 0.0% 0 0.0%
unserialize0 N/A% -575 -40.9% 0 0.0% 48 120.0% -216 -100.0%
explode0 N/A% 4 0.3% 0 0.0% 0 0.0% 0 0.0%