Diff Report
Run #518eceb4aac68: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518ed14bbba55: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #518eceb4aac68Run #518ed14bbba55DiffDiff%
Number of Function Calls67 67 0 0.0%
Incl. Wall Time (microsec)17,516 17,494 -22 -0.1%
Incl. Wall Time (microsec) per call 261 261 -0 -0.1%
Excl. Wall Time (microsec)1,026 991 -35 -3.4%
Incl. CPU (microsecs)14,445 14,423 -22 -0.2%
Incl. CPU (microsecs) per call 216 215 -0 -0.2%
Excl. CPU (microsec)946 908 -38 -4.0%
Incl. MemUse (bytes)1,326,632 1,326,648 16 0.0%
Incl. MemUse (bytes) per call 19,800 19,801 0 0.0%
Excl. MemUse (bytes)-146,784 -146,800 -16 -0.0%
Incl. PeakMemUse (bytes)1,816,968 1,817,040 72 0.0%
Incl. PeakMemUse (bytes) per call 27,119 27,120 1 0.0%
Excl. PeakMemUse (bytes)7,624 7,600 -24 -0.3%

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% -22 -8.0% -22 -7.1% 16 0.1% 72 0.4%
Exclusive Metrics Diff for Current Function-35 -159.1% -38 -172.7% -16 -100.0% -24 -33.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -22 -100.0% -22 -100.0% 16 100.0% 72 100.0%
Child functions
unserialize0 N/A% 226 1027.3% 139 631.8% 32 200.0% -16 -22.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -213 -968.2% -124 -563.6% 0 0.0% 112 155.6%
explode0 N/A% 0 0.0% 1 4.5% 0 0.0% 0 0.0%