Diff Report
Run #519afa8ec2e5c: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519afb4e24ae7: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519afa8ec2e5cRun #519afb4e24ae7DiffDiff%
Number of Function Calls93 93 0 0.0%
Incl. Wall Time (microsec)33,230 33,673 443 1.3%
Incl. Wall Time (microsec) per call 357 362 5 1.3%
Excl. Wall Time (microsec)2,107 2,093 -14 -0.7%
Incl. CPU (microsecs)26,846 27,272 426 1.6%
Incl. CPU (microsecs) per call 289 293 5 1.6%
Excl. CPU (microsec)1,985 1,981 -4 -0.2%
Incl. MemUse (bytes)1,965,784 1,965,672 -112 -0.0%
Incl. MemUse (bytes) per call 21,137 21,136 -1 -0.0%
Excl. MemUse (bytes)-246,896 -246,864 32 0.0%
Incl. PeakMemUse (bytes)2,225,472 2,225,584 112 0.0%
Incl. PeakMemUse (bytes) per call 23,930 23,931 1 0.0%
Excl. PeakMemUse (bytes)6,664 6,664 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% 443 46.9% 426 28.6% -112 -0.2% 112 0.2%
Exclusive Metrics Diff for Current Function-14 -3.2% -4 -0.9% 32 28.6% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 443 100.0% 426 100.0% -112 -100.0% 112 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 382 86.2% 244 57.3% 0 0.0% -16 -14.3%
unserialize0 N/A% 68 15.3% 176 41.3% -144 -128.6% 128 114.3%
explode0 N/A% 7 1.6% 10 2.3% 0 0.0% 0 0.0%