Diff Report
Run #54e0a7d2151b1: 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 #54e0a7d2151b1Run #54e0a6d45fe2aDiffDiff%
Number of Function Calls131 131 0 0.0%
Incl. Wall Time (microsec)18,092 18,510 418 2.3%
Incl. Wall Time (microsec) per call 138 141 3 2.3%
Excl. Wall Time (microsec)1,172 1,131 -41 -3.5%
Incl. CPU (microsecs)17,025 17,362 337 2.0%
Incl. CPU (microsecs) per call 130 133 3 2.0%
Excl. CPU (microsec)1,017 977 -40 -3.9%
Incl. MemUse (bytes)4,258,728 4,258,760 32 0.0%
Incl. MemUse (bytes) per call 32,509 32,510 0 0.0%
Excl. MemUse (bytes)-478,696 -478,696 0 0.0%
Incl. PeakMemUse (bytes)4,594,704 4,587,192 -7,512 -0.2%
Incl. PeakMemUse (bytes) per call 35,074 35,017 -57 -0.2%
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% 418 56.6% 337 92.6% 32 0.3% -7,512 -70.8%
Exclusive Metrics Diff for Current Function-41 -9.8% -40 -11.9% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 418 100.0% 337 100.0% 32 100.0% -7,512 -100.0%
Child functions
unserialize0 N/A% 299 71.5% 267 79.2% 32 100.0% -7,384 -98.3%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid0 N/A% 164 39.2% 109 32.3% 0 0.0% -128 -1.7%
explode0 N/A% -4 -1.0% 1 0.3% 0 0.0% 0 0.0%