Diff Report
Run #519a4774889dd: XHProf Run (Namespace=drupal-perf-steveoliver)
vs.
Run #519a4887d3a25: XHProf Run (Namespace=drupal-perf-steveoliver)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #519a4774889ddRun #519a4887d3a25DiffDiff%
Number of Function Calls11 11 0 0.0%
Incl. Wall Time (microsec)5,137 26,290 21,153 411.8%
Incl. Wall Time (microsec) per call 467 2,390 1,923 411.8%
Excl. Wall Time (microsec)946 4,649 3,703 391.4%
Incl. CPU (microsecs)0 0 0 N/A%
Incl. CPU (microsecs) per call 0 0 0 N/A%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)242,584 242,592 8 0.0%
Incl. MemUse (bytes) per call 22,053 22,054 1 0.0%
Excl. MemUse (bytes)-22,512 -22,512 0 0.0%
Incl. PeakMemUse (bytes)278,208 278,336 128 0.0%
Incl. PeakMemUse (bytes) per call 25,292 25,303 12 0.0%
Excl. PeakMemUse (bytes)840 840 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% 21,153 0.1% 0 0.0% 8 0.5% 128 8.5%
Exclusive Metrics Diff for Current Function3,703 17.5% 0 N/A% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 21,153 100.0% 0 N/A% 8 100.0% 128 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 10,559 49.9% 0 N/A% 0 0.0% 0 0.0%
unserialize@10 N/A% 6,737 31.8% 0 N/A% 8 100.0% 128 100.0%
explode0 N/A% 154 0.7% 0 N/A% 0 0.0% 0 0.0%