Diff Report
Run #51ca54a312a65: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51ca5414b31d9: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ca54a312a65Run #51ca5414b31d9DiffDiff%
Number of Function Calls64 64 0 0.0%
Incl. Wall Time (microsec)26,726 26,997 271 1.0%
Incl. Wall Time (microsec) per call 418 422 4 1.0%
Excl. Wall Time (microsec)1,264 1,331 67 5.3%
Incl. CPU (microsecs)22,590 22,623 33 0.1%
Incl. CPU (microsecs) per call 353 353 1 0.1%
Excl. CPU (microsec)1,170 1,239 69 5.9%
Incl. MemUse (bytes)1,978,920 1,977,968 -952 -0.0%
Incl. MemUse (bytes) per call 30,921 30,906 -15 -0.0%
Excl. MemUse (bytes)-181,120 -180,944 176 0.1%
Incl. PeakMemUse (bytes)2,469,312 2,470,624 1,312 0.1%
Incl. PeakMemUse (bytes) per call 38,583 38,604 21 0.1%
Excl. PeakMemUse (bytes)5,584 5,528 -56 -1.0%

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% 271 24.7% 33 15.2% -952 -1.1% 1,312 1.6%
Exclusive Metrics Diff for Current Function67 24.7% 69 209.1% 176 18.5% -56 -4.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 271 100.0% 33 100.0% -952 -100.0% 1,312 100.0%
Child functions
unserialize0 N/A% 244 90.0% 75 227.3% -1,160 -121.8% 672 51.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -44 -16.2% -112 -339.4% 0 0.0% 696 53.0%
explode0 N/A% 4 1.5% 1 3.0% 32 3.4% 0 0.0%