Diff Report
Run #5204417bc7ab7: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5204421e7a2a2: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5204417bc7ab7Run #5204421e7a2a2DiffDiff%
Number of Function Calls104 104 0 0.0%
Incl. Wall Time (microsec)20,362 20,071 -291 -1.4%
Incl. Wall Time (microsec) per call 196 193 -3 -1.4%
Excl. Wall Time (microsec)1,531 1,606 75 4.9%
Incl. CPU (microsecs)16,603 16,346 -257 -1.5%
Incl. CPU (microsecs) per call 160 157 -2 -1.5%
Excl. CPU (microsec)1,364 1,447 83 6.1%
Incl. MemUse (bytes)1,987,728 1,987,728 0 0.0%
Incl. MemUse (bytes) per call 19,113 19,113 0 0.0%
Excl. MemUse (bytes)-279,888 -279,888 0 0.0%
Incl. PeakMemUse (bytes)2,622,752 2,622,752 0 0.0%
Incl. PeakMemUse (bytes) per call 25,219 25,219 0 0.0%
Excl. PeakMemUse (bytes)7,544 7,544 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% -291 -33.6% -257 -13.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function75 25.8% 83 32.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -291 -100.0% -257 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -502 -172.5% -418 -162.6% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 139 47.8% 69 26.8% 0 N/A% 0 N/A%
explode0 N/A% -3 -1.0% 9 3.5% 0 N/A% 0 N/A%