Diff Report
Run #52d4b18f32fb6: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d4b1d6bf728: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52d4b18f32fb6Run #52d4b1d6bf728DiffDiff%
Number of Function Calls107 107 0 0.0%
Incl. Wall Time (microsec)9,799 9,789 -10 -0.1%
Incl. Wall Time (microsec) per call 92 91 -0 -0.1%
Excl. Wall Time (microsec)939 944 5 0.5%
Incl. CPU (microsecs)9,080 9,051 -29 -0.3%
Incl. CPU (microsecs) per call 85 85 -0 -0.3%
Excl. CPU (microsec)843 846 3 0.4%
Incl. MemUse (bytes)1,840,648 1,840,648 0 0.0%
Incl. MemUse (bytes) per call 17,202 17,202 0 0.0%
Excl. MemUse (bytes)-259,984 -259,984 0 0.0%
Incl. PeakMemUse (bytes)2,272,544 2,272,544 0 0.0%
Incl. PeakMemUse (bytes) per call 21,239 21,239 0 0.0%
Excl. PeakMemUse (bytes)7,856 7,856 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% -10 -8.8% -29 -67.4% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function5 50.0% 3 10.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -10 -100.0% -29 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -24 -240.0% -18 -62.1% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 9 90.0% -12 -41.4% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -2 -6.9% 0 N/A% 0 N/A%