Diff Report
Run #519ec8682c2dc: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519ec8bd1b3c1: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519ec8682c2dcRun #519ec8bd1b3c1DiffDiff%
Number of Function Calls118 118 0 0.0%
Incl. Wall Time (microsec)26,776 24,398 -2,378 -8.9%
Incl. Wall Time (microsec) per call 227 207 -20 -8.9%
Excl. Wall Time (microsec)1,764 1,682 -82 -4.6%
Incl. CPU (microsecs)20,768 19,926 -842 -4.1%
Incl. CPU (microsecs) per call 176 169 -7 -4.1%
Excl. CPU (microsec)1,647 1,571 -76 -4.6%
Incl. MemUse (bytes)1,561,328 1,561,328 0 0.0%
Incl. MemUse (bytes) per call 13,232 13,232 0 0.0%
Excl. MemUse (bytes)-383,736 -383,736 0 0.0%
Incl. PeakMemUse (bytes)1,978,000 1,978,000 0 0.0%
Incl. PeakMemUse (bytes) per call 16,763 16,763 0 0.0%
Excl. PeakMemUse (bytes)5,152 5,152 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% -2,378 -92.2% -842 -18.4% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-82 -3.4% -76 -9.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -2,378 -100.0% -842 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -1,296 -54.5% -253 -30.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -973 -40.9% -484 -57.5% 0 N/A% 0 N/A%
explode0 N/A% -27 -1.1% -29 -3.4% 0 N/A% 0 N/A%