Diff Report
Run #52e49acfb0eb8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e49b394aea8: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #52e49acfb0eb8Run #52e49b394aea8DiffDiff%
Number of Function Calls69 70 1 1.4%
Incl. Wall Time (microsec)3,552 3,566 14 0.4%
Incl. Wall Time (microsec) per call 51 51 -1 -1.0%
Excl. Wall Time (microsec)869 876 7 0.8%
Incl. CPU (microsecs)2,635 2,646 11 0.4%
Incl. CPU (microsecs) per call 38 38 -0 -1.0%
Excl. CPU (microsec)700 732 32 4.6%
Incl. MemUse (bytes)54,392 54,880 488 0.9%
Incl. MemUse (bytes) per call 788 784 -4 -0.5%
Excl. MemUse (bytes)-88,912 -89,360 -448 -0.5%
Incl. PeakMemUse (bytes)89,496 89,392 -104 -0.1%
Incl. PeakMemUse (bytes) per call 1,297 1,277 -20 -1.5%
Excl. PeakMemUse (bytes)14,944 15,440 496 3.3%

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::checksumTags1 25.0% 14 1.3% 11 1.3% 488 1.9% -104 -0.4%
Exclusive Metrics Diff for Current Function7 50.0% 32 290.9% -448 -91.8% 496 476.9%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem1 100.0% 14 100.0% 11 100.0% 488 100.0% -104 -100.0%
Child functions
array_keys1 33.3% -3 -21.4% -5 -45.5% 848 173.8% -424 -407.7%
array_diff1 33.3% 6 42.9% 1 9.1% 88 18.0% -8 -7.7%
array_fill_keys0 0.0% 1 7.1% -3 -27.3% 0 0.0% 0 0.0%
Drupal\Core\Database\Statement::fetchAllAssoc0 0.0% -1 -7.1% -3 -27.3% 0 0.0% 0 0.0%
Drupal\Core\Database\Connection::query0 0.0% 1 7.1% -8 -72.7% 0 0.0% -168 -161.5%
drupal_static1 33.3% 3 21.4% -3 -27.3% 0 0.0% 0 0.0%