Diff Report
Run #52c96bbf45f87: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c96b69a1c07: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #52c96bbf45f87Run #52c96b69a1c07DiffDiff%
Number of Function Calls52 52 0 0.0%
Incl. Wall Time (microsec)2,416 2,530 114 4.7%
Incl. Wall Time (microsec) per call 46 49 2 4.7%
Excl. Wall Time (microsec)570 600 30 5.3%
Incl. CPU (microsecs)1,782 1,874 92 5.2%
Incl. CPU (microsecs) per call 34 36 2 5.2%
Excl. CPU (microsec)473 488 15 3.2%
Incl. MemUse (bytes)45,248 45,248 0 0.0%
Incl. MemUse (bytes) per call 870 870 0 0.0%
Excl. MemUse (bytes)-67,280 -67,304 -24 -0.0%
Incl. PeakMemUse (bytes)70,240 71,096 856 1.2%
Incl. PeakMemUse (bytes) per call 1,351 1,367 16 1.2%
Excl. PeakMemUse (bytes)9,032 9,008 -24 -0.3%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::checksumTags [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::checksumTags0 N/A% 114 20.3% 92 16.7% 0 0.0% 856 1.7%
Exclusive Metrics Diff for Current Function30 26.3% 15 16.3% -24 N/A% -24 -2.8%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% 114 100.0% 92 100.0% 0 N/A% 856 100.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% 80 70.2% 60 65.2% 0 N/A% 664 77.6%
array_diff0 N/A% 3 2.6% -3 -3.3% 0 N/A% 0 0.0%
drupal_static0 N/A% 2 1.8% 4 4.3% 0 N/A% 0 0.0%
array_fill_keys0 N/A% -1 -0.9% 3 3.3% 0 N/A% 0 0.0%
array_keys0 N/A% -1 -0.9% 4 4.3% 24 N/A% 216 25.2%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% 1 0.9% 9 9.8% 0 N/A% 0 0.0%