Diff Report
Run #52c96d7c36f9e: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c96dcbc5e6a: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52c96d7c36f9eRun #52c96dcbc5e6aDiffDiff%
Number of Function Calls85 85 0 0.0%
Incl. Wall Time (microsec)9,055 8,997 -58 -0.6%
Incl. Wall Time (microsec) per call 107 106 -1 -0.6%
Excl. Wall Time (microsec)819 830 11 1.3%
Incl. CPU (microsecs)8,174 8,113 -61 -0.7%
Incl. CPU (microsecs) per call 96 95 -1 -0.7%
Excl. CPU (microsec)757 729 -28 -3.7%
Incl. MemUse (bytes)1,766,792 1,768,312 1,520 0.1%
Incl. MemUse (bytes) per call 20,786 20,804 18 0.1%
Excl. MemUse (bytes)-264,296 -264,680 -384 -0.1%
Incl. PeakMemUse (bytes)2,082,496 2,075,752 -6,744 -0.3%
Incl. PeakMemUse (bytes) per call 24,500 24,421 -79 -0.3%
Excl. PeakMemUse (bytes)7,976 7,976 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% -58 -7.7% -61 -4.0% 1,520 1.4% -6,744 -6.0%
Exclusive Metrics Diff for Current Function11 19.0% -28 -45.9% -384 -25.3% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -58 -100.0% -61 -100.0% 1,520 100.0% -6,744 -100.0%
Child functions
unserialize0 N/A% -55 -94.8% -43 -70.5% 1,872 123.2% -6,864 -101.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -12 -20.7% 9 14.8% 24 1.6% 120 1.8%
explode0 N/A% -2 -3.4% 1 1.6% 8 0.5% 0 0.0%