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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #541de429e5ab1Run #541de5cbd937aDiffDiff%
Number of Function Calls147 147 0 0.0%
Incl. Wall Time (microsec)23,359 22,933 -426 -1.8%
Incl. Wall Time (microsec) per call 159 156 -3 -1.8%
Excl. Wall Time (microsec)2,058 2,016 -42 -2.0%
Incl. CPU (microsecs)22,074 21,803 -271 -1.2%
Incl. CPU (microsecs) per call 150 148 -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)4,623,408 4,649,840 26,432 0.6%
Incl. PeakMemUse (bytes) per call 31,452 31,632 180 0.6%
Excl. PeakMemUse (bytes)5,320 5,176 -144 -2.7%

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 Function-42 -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%