Diff Report
Run #51a27d81b1262: XHProf Run (Namespace=drupal-perf-trevorbradley)
vs.
Run #51a27ce83196d: XHProf Run (Namespace=drupal-perf-trevorbradley)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51a27d81b1262Run #51a27ce83196dDiffDiff%
Number of Function Calls64 64 0 0.0%
Incl. Wall Time (microsec)17,309 17,405 96 0.6%
Incl. Wall Time (microsec) per call 270 272 2 0.6%
Excl. Wall Time (microsec)940 868 -72 -7.7%
Incl. CPU (microsecs)12,000 12,000 0 0.0%
Incl. CPU (microsecs) per call 188 188 0 0.0%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)1,566,624 1,565,072 -1,552 -0.1%
Incl. MemUse (bytes) per call 24,479 24,454 -24 -0.1%
Excl. MemUse (bytes)-202,960 -202,640 320 0.2%
Incl. PeakMemUse (bytes)2,065,536 2,071,120 5,584 0.3%
Incl. PeakMemUse (bytes) per call 32,274 32,361 87 0.3%
Excl. PeakMemUse (bytes)5,200 5,200 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% 96 3.7% 0 0.0% -1,552 -3.0% 5,584 10.6%
Exclusive Metrics Diff for Current Function-72 -75.0% 0 N/A% 320 20.6% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 96 100.0% 0 N/A% -1,552 -100.0% 5,584 100.0%
Child functions
unserialize0 N/A% 304 316.7% 0 N/A% -1,872 -120.6% 5,584 100.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -123 -128.1% 0 N/A% 0 0.0% 0 0.0%
explode0 N/A% -13 -13.5% 0 N/A% 0 0.0% 0 0.0%