Diff Report
Run #51774c26bf054: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51774cdfb1214: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #51774c26bf054Run #51774cdfb1214DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)458 488 30 6.6%
Incl. Wall Time (microsec) per call 65 70 4 6.6%
Excl. Wall Time (microsec)87 90 3 3.4%
Incl. CPU (microsecs)466 492 26 5.6%
Incl. CPU (microsecs) per call 67 70 4 5.6%
Excl. CPU (microsec)80 78 -2 -2.5%
Incl. MemUse (bytes)106,816 106,816 0 0.0%
Incl. MemUse (bytes) per call 15,259 15,259 0 0.0%
Excl. MemUse (bytes)-12,288 -12,288 0 0.0%
Incl. PeakMemUse (bytes)110,608 110,608 0 0.0%
Incl. PeakMemUse (bytes) per call 15,801 15,801 0 0.0%
Excl. PeakMemUse (bytes)1,992 1,992 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem@1 [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::prepareItem@10 N/A% 30 0.1% 26 0.1% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function3 10.0% -2 -7.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 30 100.0% 26 100.0% 0 N/A% 0 N/A%
Child functions
unserialize@10 N/A% 19 63.3% 19 73.1% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 8 26.7% 9 34.6% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%