Diff Report
Run #51990c6b6ce43: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51990ceb6ce00: XHProf Run (Namespace=drupal-perf-cottser)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51990c6b6ce43Run #51990ceb6ce00DiffDiff%
Number of Function Calls65 65 0 0.0%
Incl. Wall Time (microsec)15,114 15,436 322 2.1%
Incl. Wall Time (microsec) per call 233 237 5 2.1%
Excl. Wall Time (microsec)844 898 54 6.4%
Incl. CPU (microsecs)13,258 13,503 245 1.8%
Incl. CPU (microsecs) per call 204 208 4 1.8%
Excl. CPU (microsec)749 809 60 8.0%
Incl. MemUse (bytes)1,328,368 1,328,288 -80 -0.0%
Incl. MemUse (bytes) per call 20,436 20,435 -1 -0.0%
Excl. MemUse (bytes)-211,736 -211,752 -16 -0.0%
Incl. PeakMemUse (bytes)1,339,784 1,354,760 14,976 1.1%
Incl. PeakMemUse (bytes) per call 20,612 20,842 230 1.1%
Excl. PeakMemUse (bytes)4,032 4,128 96 2.4%

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 Function54 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%