Diff Report
Run #519fd13122e91: XHProf Run (Namespace=drupal-perf-mrbaileys)
vs.
Run #519fd0873c1d7: XHProf Run (Namespace=drupal-perf-mrbaileys)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519fd13122e91Run #519fd0873c1d7DiffDiff%
Number of Function Calls108 108 0 0.0%
Incl. Wall Time (microsec)18,247 17,931 -316 -1.7%
Incl. Wall Time (microsec) per call 169 166 -3 -1.7%
Excl. Wall Time (microsec)1,664 1,722 58 3.5%
Incl. CPU (microsecs)16,003 24,000 7,997 50.0%
Incl. CPU (microsecs) per call 148 222 74 50.0%
Excl. CPU (microsec)4,000 0 -4,000 -100.0%
Incl. MemUse (bytes)1,581,992 1,580,736 -1,256 -0.1%
Incl. MemUse (bytes) per call 14,648 14,636 -12 -0.1%
Excl. MemUse (bytes)-361,952 -361,744 208 0.1%
Incl. PeakMemUse (bytes)1,918,984 1,919,864 880 0.0%
Incl. PeakMemUse (bytes) per call 17,768 17,777 8 0.0%
Excl. PeakMemUse (bytes)4,616 4,616 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% -316 -30.0% 7,997 799700.0% -1,256 -10.4% 880 98.2%
Exclusive Metrics Diff for Current Function58 18.4% -4,000 -50.0% 208 16.6% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -316 -100.0% 7,997 100.0% -1,256 -100.0% 880 100.0%
Child functions
unserialize0 N/A% -318 -100.6% 3,998 50.0% -1,424 -113.4% 1,128 128.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -61 -19.3% 7,999 100.0% -40 -3.2% -248 -28.2%
explode0 N/A% 5 1.6% 0 0.0% 0 0.0% 0 0.0%