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

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #52e49b394aea8Run #52e49acfb0eb8DiffDiff%
Number of Function Calls70 69 -1 -1.4%
Incl. Wall Time (microsec)3,566 3,552 -14 -0.4%
Incl. Wall Time (microsec) per call 51 51 1 1.1%
Excl. Wall Time (microsec)876 869 -7 -0.8%
Incl. CPU (microsecs)2,646 2,635 -11 -0.4%
Incl. CPU (microsecs) per call 38 38 0 1.0%
Excl. CPU (microsec)732 700 -32 -4.4%
Incl. MemUse (bytes)54,880 54,392 -488 -0.9%
Incl. MemUse (bytes) per call 784 788 4 0.5%
Excl. MemUse (bytes)-89,360 -88,912 448 0.5%
Incl. PeakMemUse (bytes)89,392 89,496 104 0.1%
Incl. PeakMemUse (bytes) per call 1,277 1,297 20 1.6%
Excl. PeakMemUse (bytes)15,440 14,944 -496 -3.2%

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::checksumTags-1 -25.0% -14 -1.3% -11 -1.3% -488 -1.9% 104 0.4%
Exclusive Metrics Diff for Current Function-7 -50.0% -32 -290.9% 448 91.8% -496 -476.9%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem-1 -100.0% -14 -100.0% -11 -100.0% -488 -100.0% 104 100.0%
Child functions
array_diff-1 -33.3% -6 -42.9% -1 -9.1% -88 -18.0% 8 7.7%
array_keys-1 -33.3% 3 21.4% 5 45.5% -848 -173.8% 424 407.7%
drupal_static-1 -33.3% -3 -21.4% 3 27.3% 0 0.0% 0 0.0%
array_fill_keys0 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\Core\Database\Statement::fetchAllAssoc0 0.0% 1 7.1% 3 27.3% 0 0.0% 0 0.0%