Diff Report
Run #541de5cbd937a: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #541de429e5ab1: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #541de5cbd937aRun #541de429e5ab1DiffDiff%
Number of Function Calls147 147 0 0.0%
Incl. Wall Time (microsec)22,933 23,359 426 1.9%
Incl. Wall Time (microsec) per call 156 159 3 1.9%
Excl. Wall Time (microsec)2,016 2,058 42 2.1%
Incl. CPU (microsecs)21,803 22,074 271 1.2%
Incl. CPU (microsecs) per call 148 150 2 1.2%
Excl. CPU (microsec)1,832 1,832 0 0.0%
Incl. MemUse (bytes)4,054,856 4,054,856 0 0.0%
Incl. MemUse (bytes) per call 27,584 27,584 0 0.0%
Excl. MemUse (bytes)-498,304 -498,304 0 0.0%
Incl. PeakMemUse (bytes)4,649,840 4,623,408 -26,432 -0.6%
Incl. PeakMemUse (bytes) per call 31,632 31,452 -180 -0.6%
Excl. PeakMemUse (bytes)5,176 5,320 144 2.8%

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% 426 4.6% 271 3.3% 0 0.0% -26,432 -22.0%
Exclusive Metrics Diff for Current Function42 9.9% 0 0.0% 0 N/A% 144 0.5%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 426 100.0% 271 100.0% 0 N/A% -26,432 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 394 92.5% 255 94.1% 0 N/A% -1,136 -4.3%
unserialize0 N/A% -9 -2.1% -3 -1.1% 0 N/A% -25,448 -96.3%
Composer\Autoload\ClassLoader::loadClass0 N/A% -3 -0.7% -2 -0.7% 0 N/A% 0 0.0%
explode0 N/A% 2 0.5% 21 7.7% 0 N/A% 8 0.0%