Diff Report
Run #51ec3c1813b11: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec3b81ad265: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ec3c1813b11Run #51ec3b81ad265DiffDiff%
Number of Function Calls104 104 0 0.0%
Incl. Wall Time (microsec)9,724 9,919 195 2.0%
Incl. Wall Time (microsec) per call 94 95 2 2.0%
Excl. Wall Time (microsec)1,284 1,283 -1 -0.1%
Incl. CPU (microsecs)9,253 9,291 38 0.4%
Incl. CPU (microsecs) per call 89 89 0 0.4%
Excl. CPU (microsec)1,173 1,177 4 0.3%
Incl. MemUse (bytes)1,742,816 1,742,816 0 0.0%
Incl. MemUse (bytes) per call 16,758 16,758 0 0.0%
Excl. MemUse (bytes)-303,880 -303,880 0 0.0%
Incl. PeakMemUse (bytes)2,379,992 2,379,992 0 0.0%
Incl. PeakMemUse (bytes) per call 22,885 22,885 0 0.0%
Excl. PeakMemUse (bytes)8,304 8,304 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% 195 7.9% 38 5.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-1 -0.5% 4 10.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 195 100.0% 38 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 110 56.4% 81 213.2% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 86 44.1% -45 -118.4% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -2 -5.3% 0 N/A% 0 N/A%