Diff Report
Run #519050cbdc201: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51904f8640386: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519050cbdc201Run #51904f8640386DiffDiff%
Number of Function Calls66 66 0 0.0%
Incl. Wall Time (microsec)20,228 19,521 -707 -3.5%
Incl. Wall Time (microsec) per call 306 296 -11 -3.5%
Excl. Wall Time (microsec)1,020 998 -22 -2.2%
Incl. CPU (microsecs)16,459 15,820 -639 -3.9%
Incl. CPU (microsecs) per call 249 240 -10 -3.9%
Excl. CPU (microsec)942 896 -46 -4.9%
Incl. MemUse (bytes)1,386,560 1,386,672 112 0.0%
Incl. MemUse (bytes) per call 21,008 21,010 2 0.0%
Excl. MemUse (bytes)-170,696 -170,672 24 0.0%
Incl. PeakMemUse (bytes)1,911,720 1,920,056 8,336 0.4%
Incl. PeakMemUse (bytes) per call 28,965 29,092 126 0.4%
Excl. PeakMemUse (bytes)6,600 6,600 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% -707 -63.1% -639 -40.7% 112 0.1% 8,336 9.2%
Exclusive Metrics Diff for Current Function-22 -3.1% -46 -7.2% 24 21.4% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -707 -100.0% -639 -100.0% 112 100.0% 8,336 100.0%
Child functions
unserialize0 N/A% -582 -82.3% -493 -77.2% 88 78.6% 8,056 96.6%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -104 -14.7% -108 -16.9% 0 0.0% 280 3.4%
explode0 N/A% 1 0.1% 8 1.3% 0 0.0% 0 0.0%