Diff Report
Run #51ec485525502: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec491641923: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #51ec485525502Run #51ec491641923DiffDiff%
Number of Function Calls146 146 0 0.0%
Incl. Wall Time (microsec)5,403 5,498 95 1.8%
Incl. Wall Time (microsec) per call 37 38 1 1.8%
Excl. Wall Time (microsec)1,845 1,868 23 1.2%
Incl. CPU (microsecs)4,659 4,710 51 1.1%
Incl. CPU (microsecs) per call 32 32 0 1.1%
Excl. CPU (microsec)1,525 1,578 53 3.5%
Incl. MemUse (bytes)94,624 94,592 -32 -0.0%
Incl. MemUse (bytes) per call 648 648 -0 -0.0%
Excl. MemUse (bytes)-185,448 -185,392 56 0.0%
Incl. PeakMemUse (bytes)128,176 128,768 592 0.5%
Incl. PeakMemUse (bytes) per call 878 882 4 0.5%
Excl. PeakMemUse (bytes)33,224 34,568 1,344 4.0%

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% 95 6.1% 51 2.9% -32 -0.0% 592 0.4%
Exclusive Metrics Diff for Current Function23 24.2% 53 103.9% 56 175.0% 1,344 227.0%
Parent functions
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% 58 61.1% 21 41.2% -32 -100.0% 472 79.7%
Drupal\Core\Cache\DatabaseBackend::prepareItem@10 N/A% 36 37.9% 30 58.8% 0 0.0% 120 20.3%
Drupal\Core\Cache\DatabaseBackend::doSet0 N/A% 1 1.1% 0 0.0% 0 0.0% 0 0.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% 90 94.7% 32 62.7% 0 0.0% 152 25.7%
array_keys0 N/A% -17 -17.9% -16 -31.4% -88 -275.0% -568 -95.9%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% -6 -6.3% -2 -3.9% 0 0.0% 0 0.0%
drupal_static0 N/A% 4 4.2% -4 -7.8% 0 0.0% 24 4.1%
array_diff0 N/A% 1 1.1% -15 -29.4% 0 0.0% -360 -60.8%
array_fill_keys0 N/A% 0 0.0% 3 5.9% 0 0.0% 0 0.0%