Diff Report
Run #538e3ac0de109: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #538e3af7e977d: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #538e3ac0de109Run #538e3af7e977dDiffDiff%
Number of Function Calls58 58 0 0.0%
Incl. Wall Time (microsec)17,892 18,031 139 0.8%
Incl. Wall Time (microsec) per call 308 311 2 0.8%
Excl. Wall Time (microsec)723 720 -3 -0.4%
Incl. CPU (microsecs)16,313 16,497 184 1.1%
Incl. CPU (microsecs) per call 281 284 3 1.1%
Excl. CPU (microsec)619 643 24 3.9%
Incl. MemUse (bytes)3,238,920 3,238,920 0 0.0%
Incl. MemUse (bytes) per call 55,843 55,843 0 0.0%
Excl. MemUse (bytes)-371,480 -371,480 0 0.0%
Incl. PeakMemUse (bytes)3,797,680 3,797,680 0 0.0%
Incl. PeakMemUse (bytes) per call 65,477 65,477 0 0.0%
Excl. PeakMemUse (bytes)5,464 5,464 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% 139 19.0% 184 23.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-3 -2.2% 24 13.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 139 100.0% 184 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 151 108.6% 175 95.1% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -38 -27.3% -34 -18.5% 0 N/A% 0 N/A%
Composer\Autoload\ClassLoader::loadClass0 N/A% 28 20.1% 28 15.2% 0 N/A% 0 N/A%
explode0 N/A% 1 0.7% -9 -4.9% 0 N/A% 0 N/A%