Diff Report
Run #541de55978b9a: 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 #541de55978b9aRun #541de429e5ab1DiffDiff%
Number of Function Calls147 147 0 0.0%
Incl. Wall Time (microsec)22,357 23,359 1,002 4.5%
Incl. Wall Time (microsec) per call 152 159 7 4.5%
Excl. Wall Time (microsec)1,987 2,058 71 3.6%
Incl. CPU (microsecs)21,240 22,074 834 3.9%
Incl. CPU (microsecs) per call 144 150 6 3.9%
Excl. CPU (microsec)1,804 1,832 28 1.6%
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)4,623,408 4,623,408 0 0.0%
Incl. PeakMemUse (bytes) per call 31,452 31,452 0 0.0%
Excl. PeakMemUse (bytes)5,320 5,320 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% 1,002 51.8% 834 57.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function71 7.1% 28 3.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 1,002 100.0% 834 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 630 62.9% 639 76.6% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 293 29.2% 151 18.1% 0 N/A% 0 N/A%
explode0 N/A% 8 0.8% 16 1.9% 0 N/A% 0 N/A%
Composer\Autoload\ClassLoader::loadClass0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%