Diff Report
Run #543bf339ee873: XHProf Run (Namespace=drupal-perf-dawehner)
vs.
Run #543bf51d41339: XHProf Run (Namespace=drupal-perf-dawehner)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #543bf339ee873Run #543bf51d41339DiffDiff%
Number of Function Calls117 117 0 0.0%
Incl. Wall Time (microsec)19,951 19,465 -486 -2.4%
Incl. Wall Time (microsec) per call 171 166 -4 -2.4%
Excl. Wall Time (microsec)1,837 1,905 68 3.7%
Incl. CPU (microsecs)18,664 18,939 275 1.5%
Incl. CPU (microsecs) per call 160 162 2 1.5%
Excl. CPU (microsec)1,638 1,701 63 3.8%
Incl. MemUse (bytes)3,394,584 3,394,656 72 0.0%
Incl. MemUse (bytes) per call 29,014 29,014 1 0.0%
Excl. MemUse (bytes)-619,808 -619,824 -16 -0.0%
Incl. PeakMemUse (bytes)3,852,800 3,837,624 -15,176 -0.4%
Incl. PeakMemUse (bytes) per call 32,930 32,800 -130 -0.4%
Excl. PeakMemUse (bytes)8,728 8,728 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% -486 -6.5% 275 2.6% 72 0.0% -15,176 -0.8%
Exclusive Metrics Diff for Current Function68 14.0% 63 22.9% -16 -22.2% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -486 -100.0% 275 100.0% 72 100.0% -15,176 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -510 -104.9% 273 99.3% 16 22.2% 2,856 18.8%
unserialize0 N/A% -44 -9.1% -54 -19.6% 72 100.0% -18,232 -120.1%
explode0 N/A% 0 0.0% -7 -2.5% 0 0.0% 200 1.3%