Diff Report
Run #52d3e812c7cf2: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d3e8415aec3: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52d3e812c7cf2Run #52d3e8415aec3DiffDiff%
Number of Function Calls77 77 0 0.0%
Incl. Wall Time (microsec)7,854 7,828 -26 -0.3%
Incl. Wall Time (microsec) per call 102 102 -0 -0.3%
Excl. Wall Time (microsec)760 745 -15 -2.0%
Incl. CPU (microsecs)7,122 7,084 -38 -0.5%
Incl. CPU (microsecs) per call 92 92 -0 -0.5%
Excl. CPU (microsec)677 661 -16 -2.4%
Incl. MemUse (bytes)1,459,728 1,459,728 0 0.0%
Incl. MemUse (bytes) per call 18,958 18,958 0 0.0%
Excl. MemUse (bytes)-213,696 -213,696 0 0.0%
Incl. PeakMemUse (bytes)1,985,232 1,985,232 0 0.0%
Incl. PeakMemUse (bytes) per call 25,782 25,782 0 0.0%
Excl. PeakMemUse (bytes)7,536 7,536 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% -26 -22.2% -38 -33.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-15 -57.7% -16 -42.1% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -26 -100.0% -38 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -38 -146.2% -44 -115.8% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 27 103.8% 20 52.6% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 2 5.3% 0 N/A% 0 N/A%