Diff Report
Run #539206aca7ae8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #539206aca7ae8Run #539205a48c548DiffDiff%
Number of Function Calls67 67 0 0.0%
Incl. Wall Time (microsec)13,659 13,518 -141 -1.0%
Incl. Wall Time (microsec) per call 204 202 -2 -1.0%
Excl. Wall Time (microsec)1,946 1,962 16 0.8%
Incl. CPU (microsecs)8,145 8,221 76 0.9%
Incl. CPU (microsecs) per call 122 123 1 0.9%
Excl. CPU (microsec)1,664 1,690 26 1.6%
Incl. MemUse (bytes)35,468 35,468 0 0.0%
Incl. MemUse (bytes) per call 529 529 0 0.0%
Excl. MemUse (bytes)-99,212 -99,260 -48 -0.0%
Incl. PeakMemUse (bytes)71,372 71,548 176 0.2%
Incl. PeakMemUse (bytes) per call 1,065 1,068 3 0.2%
Excl. PeakMemUse (bytes)13,344 13,384 40 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% -141 -3.1% 76 2.0% 0 0.0% 176 0.2%
Exclusive Metrics Diff for Current Function16 11.3% 26 34.2% -48 N/A% 40 22.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% -141 -100.0% 76 100.0% 0 N/A% 176 100.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% -139 -98.6% 86 113.2% 8 N/A% 92 52.3%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% -34 -24.1% -42 -55.3% 0 N/A% -16 -9.1%
array_keys0 N/A% 30 21.3% 19 25.0% 40 N/A% 52 29.5%
drupal_static0 N/A% -13 -9.2% -11 -14.5% 0 N/A% 0 0.0%
array_diff0 N/A% -2 -1.4% -7 -9.2% 0 N/A% 8 4.5%
array_fill_keys0 N/A% 1 0.7% 5 6.6% 0 N/A% 0 0.0%