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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51774c26bf054Run #51774d289642fDiffDiff%
Number of Function Calls128 128 0 0.0%
Incl. Wall Time (microsec)25,557 25,482 -75 -0.3%
Incl. Wall Time (microsec) per call 200 199 -1 -0.3%
Excl. Wall Time (microsec)1,596 1,638 42 2.6%
Incl. CPU (microsecs)21,523 21,157 -366 -1.7%
Incl. CPU (microsecs) per call 168 165 -3 -1.7%
Excl. CPU (microsec)1,447 1,498 51 3.5%
Incl. MemUse (bytes)1,911,728 1,912,872 1,144 0.1%
Incl. MemUse (bytes) per call 14,935 14,944 9 0.1%
Excl. MemUse (bytes)-425,936 -426,112 -176 -0.0%
Incl. PeakMemUse (bytes)2,532,304 2,529,544 -2,760 -0.1%
Incl. PeakMemUse (bytes) per call 19,784 19,762 -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 Function42 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%