Diff Report
Run #52c96ba78d568: 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 #52c96ba78d568Run #52c96b69a1c07DiffDiff%
Number of Function Calls52 52 0 0.0%
Incl. Wall Time (microsec)2,492 2,530 38 1.5%
Incl. Wall Time (microsec) per call 48 49 1 1.5%
Excl. Wall Time (microsec)596 600 4 0.7%
Incl. CPU (microsecs)1,842 1,874 32 1.7%
Incl. CPU (microsecs) per call 35 36 1 1.7%
Excl. CPU (microsec)484 488 4 0.8%
Incl. MemUse (bytes)45,248 45,248 0 0.0%
Incl. MemUse (bytes) per call 870 870 0 0.0%
Excl. MemUse (bytes)-67,304 -67,304 0 0.0%
Incl. PeakMemUse (bytes)71,096 71,096 0 0.0%
Incl. PeakMemUse (bytes) per call 1,367 1,367 0 0.0%
Excl. PeakMemUse (bytes)9,008 9,008 0 0.0%

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% 38 51.4% 32 3200.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function4 10.5% 4 12.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% 38 100.0% 32 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Database\Connection::query0 N/A% 41 107.9% 30 93.8% 0 N/A% 0 N/A%
array_keys0 N/A% -4 -10.5% -7 -21.9% 0 N/A% 0 N/A%
drupal_static0 N/A% -2 -5.3% -8 -25.0% 0 N/A% 0 N/A%
array_fill_keys0 N/A% -1 -2.6% 6 18.8% 0 N/A% 0 N/A%
array_diff0 N/A% -1 -2.6% 4 12.5% 0 N/A% 0 N/A%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% 1 2.6% 3 9.4% 0 N/A% 0 N/A%