Diff Report
Run #51aaed63de9a0: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51aaed0fcbd4e: 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 #51aaed63de9a0Run #51aaed0fcbd4eDiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)1,496 1,478 -18 -1.2%
Incl. Wall Time (microsec) per call 166 164 -2 -1.2%
Excl. Wall Time (microsec)129 135 6 4.7%
Incl. CPU (microsecs)1,217 1,236 19 1.6%
Incl. CPU (microsecs) per call 135 137 2 1.6%
Excl. CPU (microsec)115 119 4 3.5%
Incl. MemUse (bytes)271,152 271,152 0 0.0%
Incl. MemUse (bytes) per call 30,128 30,128 0 0.0%
Excl. MemUse (bytes)-42,136 -42,136 0 0.0%
Incl. PeakMemUse (bytes)296,168 296,168 0 0.0%
Incl. PeakMemUse (bytes) per call 32,908 32,908 0 0.0%
Excl. PeakMemUse (bytes)2,272 2,272 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% -18 -3.1% 19 11.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function6 33.3% 4 21.1% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -18 -100.0% 19 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -35 -194.4% -3 -15.8% 0 N/A% 0 N/A%
unserialize@10 N/A% 12 66.7% 18 94.7% 0 N/A% 0 N/A%
explode0 N/A% -1 -5.6% 0 0.0% 0 N/A% 0 N/A%