Diff Report
Run #519ffb7471c72: XHProf Run (Namespace=drupal-perf-ezeedub)
vs.
Run #519ffc4c0008b: XHProf Run (Namespace=drupal-perf-ezeedub)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519ffb7471c72Run #519ffc4c0008bDiffDiff%
Number of Function Calls83 84 1 1.2%
Incl. Wall Time (microsec)30,376 30,882 506 1.7%
Incl. Wall Time (microsec) per call 366 368 2 0.5%
Excl. Wall Time (microsec)2,005 2,023 18 0.9%
Incl. CPU (microsecs)32,001 32,001 0 0.0%
Incl. CPU (microsecs) per call 386 381 -5 -1.2%
Excl. CPU (microsec)4,000 8,000 4,000 100.0%
Incl. MemUse (bytes)732,596 732,948 352 0.0%
Incl. MemUse (bytes) per call 8,826 8,726 -101 -1.1%
Excl. MemUse (bytes)-172,132 -172,428 -296 -0.2%
Incl. PeakMemUse (bytes)1,107,388 1,109,504 2,116 0.2%
Incl. PeakMemUse (bytes) per call 13,342 13,208 -134 -1.0%
Excl. PeakMemUse (bytes)2,680 2,680 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::prepareItem1 33.3% 506 16.5% 0 0.0% 352 2.1% 2,116 11.3%
Exclusive Metrics Diff for Current Function18 3.6% 4,000 N/A% -296 -84.1% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple1 100.0% 506 100.0% 0 N/A% 352 100.0% 2,116 100.0%
Child functions
unserialize1 50.0% 312 61.7% -1 N/A% 388 110.2% 1,996 94.3%
Drupal\Core\Cache\DatabaseBackend::checksumTags1 50.0% 179 35.4% -3,999 N/A% 260 73.9% 120 5.7%
explode0 0.0% -3 -0.6% 0 N/A% 0 0.0% 0 0.0%