Diff Report
Run #51990ceb6ce00: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51990c6b6ce43: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51990ceb6ce00Run #51990c6b6ce43DiffDiff%
Number of Function Calls65 65 0 0.0%
Incl. Wall Time (microsec)15,436 15,114 -322 -2.1%
Incl. Wall Time (microsec) per call 237 233 -5 -2.1%
Excl. Wall Time (microsec)898 844 -54 -6.0%
Incl. CPU (microsecs)13,503 13,258 -245 -1.8%
Incl. CPU (microsecs) per call 208 204 -4 -1.8%
Excl. CPU (microsec)809 749 -60 -7.4%
Incl. MemUse (bytes)1,328,288 1,328,368 80 0.0%
Incl. MemUse (bytes) per call 20,435 20,436 1 0.0%
Excl. MemUse (bytes)-211,752 -211,736 16 0.0%
Incl. PeakMemUse (bytes)1,354,760 1,339,784 -14,976 -1.1%
Incl. PeakMemUse (bytes) per call 20,842 20,612 -230 -1.1%
Excl. PeakMemUse (bytes)4,128 4,032 -96 -2.3%

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% -322 -71.6% -245 -19.9% 80 0.3% -14,976 -51.6%
Exclusive Metrics Diff for Current Function-54 -16.8% -60 -24.5% 16 20.0% -96 -0.6%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -322 -100.0% -245 -100.0% 80 100.0% -14,976 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -206 -64.0% -109 -44.5% 0 0.0% -272 -1.8%
unserialize0 N/A% -62 -19.3% -75 -30.6% 64 80.0% -14,608 -97.5%
explode0 N/A% 0 0.0% -1 -0.4% 0 0.0% 0 0.0%