Diff Report
Run #54e0a77153dbf: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #54e0a6d45fe2a: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #54e0a77153dbfRun #54e0a6d45fe2aDiffDiff%
Number of Function Calls131 131 0 0.0%
Incl. Wall Time (microsec)18,186 18,510 324 1.8%
Incl. Wall Time (microsec) per call 139 141 2 1.8%
Excl. Wall Time (microsec)1,146 1,131 -15 -1.3%
Incl. CPU (microsecs)17,105 17,362 257 1.5%
Incl. CPU (microsecs) per call 131 133 2 1.5%
Excl. CPU (microsec)967 977 10 1.0%
Incl. MemUse (bytes)4,258,760 4,258,760 0 0.0%
Incl. MemUse (bytes) per call 32,510 32,510 0 0.0%
Excl. MemUse (bytes)-478,696 -478,696 0 0.0%
Incl. PeakMemUse (bytes)4,587,192 4,587,192 0 0.0%
Incl. PeakMemUse (bytes) per call 35,017 35,017 0 0.0%
Excl. PeakMemUse (bytes)1,880 1,880 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% 324 18.5% 257 19.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-15 -4.6% 10 3.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 324 100.0% 257 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 299 92.3% 267 103.9% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid0 N/A% 42 13.0% -13 -5.1% 0 N/A% 0 N/A%
explode0 N/A% -2 -0.6% -7 -2.7% 0 N/A% 0 N/A%