Diff Report
Run #519fc2983e6a9: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fbf2154a5e: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #519fc2983e6a9Run #519fbf2154a5eDiffDiff%
Number of Function Calls19 19 0 0.0%
Incl. Wall Time (microsec)458 501 43 9.4%
Incl. Wall Time (microsec) per call 24 26 2 9.4%
Excl. Wall Time (microsec)176 177 1 0.6%
Incl. CPU (microsecs)0 0 0 N/A%
Incl. CPU (microsecs) per call 0 0 0 N/A%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)13,824 13,824 0 0.0%
Incl. MemUse (bytes) per call 728 728 0 0.0%
Excl. MemUse (bytes)868 860 -8 -0.9%
Incl. PeakMemUse (bytes)14,252 14,200 -52 -0.4%
Incl. PeakMemUse (bytes) per call 750 747 -3 -0.4%
Excl. PeakMemUse (bytes)1,896 1,828 -68 -3.6%

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% 43 4.3% 0 0.0% 0 0.0% -52 -0.0%
Exclusive Metrics Diff for Current Function1 2.3% 0 N/A% -8 N/A% -68 -130.8%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% 43 100.0% 0 N/A% 0 N/A% -52 -100.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% 33 76.7% 0 N/A% 0 N/A% 0 0.0%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% 9 20.9% 0 N/A% 0 N/A% 0 0.0%
array_diff0 N/A% -1 -2.3% 0 N/A% 0 N/A% 12 23.1%
array_keys0 N/A% 1 2.3% 0 N/A% 8 N/A% 0 0.0%
array_fill_keys0 N/A% 0 0.0% 0 N/A% 0 N/A% 0 0.0%
drupal_static0 N/A% 0 0.0% 0 N/A% 0 N/A% 4 7.7%