Diff Report
Run #51774d289642f: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51774c26bf054: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51774d289642fRun #51774c26bf054DiffDiff%
Number of Function Calls128 128 0 0.0%
Incl. Wall Time (microsec)25,482 25,557 75 0.3%
Incl. Wall Time (microsec) per call 199 200 1 0.3%
Excl. Wall Time (microsec)1,638 1,596 -42 -2.6%
Incl. CPU (microsecs)21,157 21,523 366 1.7%
Incl. CPU (microsecs) per call 165 168 3 1.7%
Excl. CPU (microsec)1,498 1,447 -51 -3.4%
Incl. MemUse (bytes)1,912,872 1,911,728 -1,144 -0.1%
Incl. MemUse (bytes) per call 14,944 14,935 -9 -0.1%
Excl. MemUse (bytes)-426,112 -425,936 176 0.0%
Incl. PeakMemUse (bytes)2,529,544 2,532,304 2,760 0.1%
Incl. PeakMemUse (bytes) per call 19,762 19,784 22 0.1%
Excl. PeakMemUse (bytes)7,360 7,360 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% 75 0.2% 366 1.1% -1,144 -4.8% 2,760 15.3%
Exclusive Metrics Diff for Current Function-42 -56.0% -51 -13.9% 176 15.4% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 75 100.0% 366 100.0% -1,144 -100.0% 2,760 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 62 82.7% 84 23.0% 0 0.0% 40 1.4%
unserialize0 N/A% 58 77.3% 338 92.3% -1,320 -115.4% 2,720 98.6%
explode0 N/A% -3 -4.0% -5 -1.4% 0 0.0% 0 0.0%