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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51904f8640386Run #519050cbdc201DiffDiff%
Number of Function Calls66 66 0 0.0%
Incl. Wall Time (microsec)19,521 20,228 707 3.6%
Incl. Wall Time (microsec) per call 296 306 11 3.6%
Excl. Wall Time (microsec)998 1,020 22 2.2%
Incl. CPU (microsecs)15,820 16,459 639 4.0%
Incl. CPU (microsecs) per call 240 249 10 4.0%
Excl. CPU (microsec)896 942 46 5.1%
Incl. MemUse (bytes)1,386,672 1,386,560 -112 -0.0%
Incl. MemUse (bytes) per call 21,010 21,008 -2 -0.0%
Excl. MemUse (bytes)-170,672 -170,696 -24 -0.0%
Incl. PeakMemUse (bytes)1,920,056 1,911,720 -8,336 -0.4%
Incl. PeakMemUse (bytes) per call 29,092 28,965 -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 Function22 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%