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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #538e3af7e977dRun #538e3ac0de109DiffDiff%
Number of Function Calls58 58 0 0.0%
Incl. Wall Time (microsec)18,031 17,892 -139 -0.8%
Incl. Wall Time (microsec) per call 311 308 -2 -0.8%
Excl. Wall Time (microsec)720 723 3 0.4%
Incl. CPU (microsecs)16,497 16,313 -184 -1.1%
Incl. CPU (microsecs) per call 284 281 -3 -1.1%
Excl. CPU (microsec)643 619 -24 -3.7%
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 Function3 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%