Diff Report
Run #53d436500e2ac: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #53d4352fc0c61: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #53d436500e2acRun #53d4352fc0c61DiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)5,891 5,926 35 0.6%
Incl. Wall Time (microsec) per call 1,964 1,975 12 0.6%
Excl. Wall Time (microsec)63 66 3 4.8%
Incl. CPU (microsecs)5,894 5,932 38 0.6%
Incl. CPU (microsecs) per call 1,965 1,977 13 0.6%
Excl. CPU (microsec)53 59 6 11.3%
Incl. MemUse (bytes)1,506,824 1,506,824 0 0.0%
Incl. MemUse (bytes) per call 502,275 502,275 0 0.0%
Excl. MemUse (bytes)-179,808 -179,808 0 0.0%
Incl. PeakMemUse (bytes)1,623,552 1,623,600 48 0.0%
Incl. PeakMemUse (bytes) per call 541,184 541,200 16 0.0%
Excl. PeakMemUse (bytes)336 336 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% 35 0.5% 38 0.6% 0 0.0% 48 0.1%
Exclusive Metrics Diff for Current Function3 8.6% 6 15.8% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 35 100.0% 38 100.0% 0 N/A% 48 100.0%
Child functions
unserialize@10 N/A% 33 94.3% 33 86.8% 0 N/A% 48 100.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -1 -2.9% -3 -7.9% 0 N/A% 0 0.0%
explode0 N/A% 0 0.0% 2 5.3% 0 N/A% 0 0.0%