Diff Report
Run #51981beb768ad: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51981e001fd46: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51981beb768adRun #51981e001fd46DiffDiff%
Number of Function Calls75 75 0 0.0%
Incl. Wall Time (microsec)29,059 29,155 96 0.3%
Incl. Wall Time (microsec) per call 387 389 1 0.3%
Excl. Wall Time (microsec)1,232 1,241 9 0.7%
Incl. CPU (microsecs)24,285 24,621 336 1.4%
Incl. CPU (microsecs) per call 324 328 4 1.4%
Excl. CPU (microsec)1,107 1,113 6 0.5%
Incl. MemUse (bytes)1,944,184 1,944,184 0 0.0%
Incl. MemUse (bytes) per call 25,922 25,922 0 0.0%
Excl. MemUse (bytes)-170,728 -170,728 0 0.0%
Incl. PeakMemUse (bytes)2,255,728 2,255,728 0 0.0%
Incl. PeakMemUse (bytes) per call 30,076 30,076 0 0.0%
Excl. PeakMemUse (bytes)5,400 5,400 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% 96 67.1% 336 110.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function9 9.4% 6 1.8% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 96 100.0% 336 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 170 177.1% 415 123.5% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -82 -85.4% -82 -24.4% 0 N/A% 0 N/A%
explode0 N/A% -1 -1.0% -3 -0.9% 0 N/A% 0 N/A%