Diff Report
Run #53ccf1bb00d4b: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #53ccf06f3ae60: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #53ccf1bb00d4bRun #53ccf06f3ae60DiffDiff%
Number of Function Calls87 87 0 0.0%
Incl. Wall Time (microsec)24,114 23,917 -197 -0.8%
Incl. Wall Time (microsec) per call 277 275 -2 -0.8%
Excl. Wall Time (microsec)814 811 -3 -0.4%
Incl. CPU (microsecs)22,575 22,353 -222 -1.0%
Incl. CPU (microsecs) per call 259 257 -3 -1.0%
Excl. CPU (microsec)698 696 -2 -0.3%
Incl. MemUse (bytes)5,820,672 5,820,648 -24 -0.0%
Incl. MemUse (bytes) per call 66,904 66,904 -0 -0.0%
Excl. MemUse (bytes)-533,904 -534,120 -216 -0.0%
Incl. PeakMemUse (bytes)6,414,112 6,516,136 102,024 1.6%
Incl. PeakMemUse (bytes) per call 73,725 74,898 1,173 1.6%
Excl. PeakMemUse (bytes)2,616 2,672 56 2.1%

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% -197 -13.0% -222 -13.6% -24 -0.4% 102,024 950.3%
Exclusive Metrics Diff for Current Function-3 -1.5% -2 -0.9% -216 -900.0% 56 0.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -197 -100.0% -222 -100.0% -24 -100.0% 102,024 100.0%
Child functions
unserialize0 N/A% -317 -160.9% -303 -136.5% 200 833.3% 100,000 98.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 129 65.5% 91 41.0% -8 -33.3% 1,968 1.9%
explode0 N/A% -4 -2.0% -6 -2.7% 0 0.0% 0 0.0%
Composer\Autoload\ClassLoader::loadClass0 N/A% -2 -1.0% -2 -0.9% 0 0.0% 0 0.0%