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

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #519fbf2154a5eRun #519fc2983e6a9DiffDiff%
Number of Function Calls19 19 0 0.0%
Incl. Wall Time (microsec)501 458 -43 -8.6%
Incl. Wall Time (microsec) per call 26 24 -2 -8.6%
Excl. Wall Time (microsec)177 176 -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)860 868 8 0.9%
Incl. PeakMemUse (bytes)14,200 14,252 52 0.4%
Incl. PeakMemUse (bytes) per call 747 750 3 0.4%
Excl. PeakMemUse (bytes)1,828 1,896 68 3.7%

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 Function-1 -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%