Diff Report
Run #519ec94fa4daa: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519ec8682c2dc: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519ec94fa4daaRun #519ec8682c2dcDiffDiff%
Number of Function Calls118 118 0 0.0%
Incl. Wall Time (microsec)23,876 26,776 2,900 12.1%
Incl. Wall Time (microsec) per call 202 227 25 12.1%
Excl. Wall Time (microsec)1,629 1,764 135 8.3%
Incl. CPU (microsecs)19,523 20,768 1,245 6.4%
Incl. CPU (microsecs) per call 165 176 11 6.4%
Excl. CPU (microsec)1,511 1,647 136 9.0%
Incl. MemUse (bytes)1,558,816 1,561,328 2,512 0.2%
Incl. MemUse (bytes) per call 13,210 13,232 21 0.2%
Excl. MemUse (bytes)-382,872 -383,736 -864 -0.2%
Incl. PeakMemUse (bytes)1,986,464 1,978,000 -8,464 -0.4%
Incl. PeakMemUse (bytes) per call 16,834 16,763 -72 -0.4%
Excl. PeakMemUse (bytes)7,584 5,152 -2,432 -32.1%

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% 2,900 8.7% 1,245 3.0% 2,512 0.3% -8,464 -1.3%
Exclusive Metrics Diff for Current Function135 4.7% 136 10.9% -864 -34.4% -2,432 -28.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 2,900 100.0% 1,245 100.0% 2,512 100.0% -8,464 -100.0%
Child functions
unserialize0 N/A% 1,622 55.9% 580 46.6% 3,376 134.4% -4,840 -57.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 1,114 38.4% 493 39.6% 0 0.0% -1,192 -14.1%
explode0 N/A% 29 1.0% 36 2.9% 0 0.0% 0 0.0%