Diff Report
Run #519dd9ab8b74d: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519dd86a86681: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519dd9ab8b74dRun #519dd86a86681DiffDiff%
Number of Function Calls117 117 0 0.0%
Incl. Wall Time (microsec)37,302 38,092 790 2.1%
Incl. Wall Time (microsec) per call 319 326 7 2.1%
Excl. Wall Time (microsec)1,559 1,609 50 3.2%
Incl. CPU (microsecs)31,103 31,517 414 1.3%
Incl. CPU (microsecs) per call 266 269 4 1.3%
Excl. CPU (microsec)1,432 1,474 42 2.9%
Incl. MemUse (bytes)2,070,472 2,070,392 -80 -0.0%
Incl. MemUse (bytes) per call 17,696 17,696 -1 -0.0%
Excl. MemUse (bytes)-541,368 -541,376 -8 -0.0%
Incl. PeakMemUse (bytes)2,431,568 2,431,840 272 0.0%
Incl. PeakMemUse (bytes) per call 20,783 20,785 2 0.0%
Excl. PeakMemUse (bytes)4,528 4,528 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% 790 1.3% 414 0.7% -80 -0.2% 272 0.5%
Exclusive Metrics Diff for Current Function50 6.3% 42 10.1% -8 -10.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 790 100.0% 414 100.0% -80 -100.0% 272 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 402 50.9% 232 56.0% 16 20.0% 8 2.9%
unserialize0 N/A% 326 41.3% 130 31.4% -96 -120.0% 264 97.1%
explode0 N/A% 12 1.5% 10 2.4% 8 10.0% 0 0.0%