Diff Report
Run #539fd0a78f1b7: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #539fd2b68bc13: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #539fd0a78f1b7Run #539fd2b68bc13DiffDiff%
Number of Function Calls104 104 0 0.0%
Incl. Wall Time (microsec)36,475 36,974 499 1.4%
Incl. Wall Time (microsec) per call 351 356 5 1.4%
Excl. Wall Time (microsec)2,112 2,283 171 8.1%
Incl. CPU (microsecs)35,689 36,324 635 1.8%
Incl. CPU (microsecs) per call 343 349 6 1.8%
Excl. CPU (microsec)1,878 2,014 136 7.2%
Incl. MemUse (bytes)5,400,336 5,400,104 -232 -0.0%
Incl. MemUse (bytes) per call 51,926 51,924 -2 -0.0%
Excl. MemUse (bytes)-577,144 -577,128 16 0.0%
Incl. PeakMemUse (bytes)5,663,320 5,745,952 82,632 1.5%
Incl. PeakMemUse (bytes) per call 54,455 55,250 795 1.5%
Excl. PeakMemUse (bytes)4,728 4,512 -216 -4.6%

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% 499 1.2% 635 1.6% -232 -0.0% 82,632 5.0%
Exclusive Metrics Diff for Current Function171 34.3% 136 21.4% 16 6.9% -216 -0.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 499 100.0% 635 100.0% -232 -100.0% 82,632 100.0%
Child functions
unserialize0 N/A% 493 98.8% 590 92.9% -272 -117.2% 81,328 98.4%
spl_autoload_call0 N/A% -330 -66.1% -332 -52.3% 0 0.0% 0 0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 131 26.3% 188 29.6% -16 -6.9% 1,536 1.9%
explode0 N/A% 34 6.8% 53 8.3% 40 17.2% -16 -0.0%