Diff Report
Run #542229efabc5e: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5422297e7f32f: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #542229efabc5eRun #5422297e7f32fDiffDiff%
Number of Function Calls111 111 0 0.0%
Incl. Wall Time (microsec)21,216 22,770 1,554 7.3%
Incl. Wall Time (microsec) per call 191 205 14 7.3%
Excl. Wall Time (microsec)1,523 1,577 54 3.5%
Incl. CPU (microsecs)20,282 21,816 1,534 7.6%
Incl. CPU (microsecs) per call 183 197 14 7.6%
Excl. CPU (microsec)1,334 1,422 88 6.6%
Incl. MemUse (bytes)4,303,856 4,303,856 0 0.0%
Incl. MemUse (bytes) per call 38,773 38,773 0 0.0%
Excl. MemUse (bytes)-654,480 -654,480 0 0.0%
Incl. PeakMemUse (bytes)4,945,040 4,945,040 0 0.0%
Incl. PeakMemUse (bytes) per call 44,550 44,550 0 0.0%
Excl. PeakMemUse (bytes)6,624 6,624 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% 1,554 321.1% 1,534 398.4% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function54 3.5% 88 5.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 1,554 100.0% 1,534 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 1,392 89.6% 1,396 91.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 108 6.9% 55 3.6% 0 N/A% 0 N/A%
explode0 N/A% 3 0.2% -3 -0.2% 0 N/A% 0 N/A%
Composer\Autoload\ClassLoader::loadClass0 N/A% -3 -0.2% -2 -0.1% 0 N/A% 0 N/A%