Diff Report
Run #518fb7370421e: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518fbcc2155d3: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #518fb7370421eRun #518fbcc2155d3DiffDiff%
Number of Function Calls77 77 0 0.0%
Incl. Wall Time (microsec)4,663 4,707 44 0.9%
Incl. Wall Time (microsec) per call 61 61 1 0.9%
Excl. Wall Time (microsec)1,230 1,250 20 1.6%
Incl. CPU (microsecs)3,285 3,323 38 1.2%
Incl. CPU (microsecs) per call 43 43 0 1.2%
Excl. CPU (microsec)1,005 1,019 14 1.4%
Incl. MemUse (bytes)56,576 56,576 0 0.0%
Incl. MemUse (bytes) per call 735 735 0 0.0%
Excl. MemUse (bytes)-81,984 -81,984 0 0.0%
Incl. PeakMemUse (bytes)87,080 87,080 0 0.0%
Incl. PeakMemUse (bytes) per call 1,131 1,131 0 0.0%
Excl. PeakMemUse (bytes)14,776 14,776 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% 44 29.9% 38 5.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function20 45.5% 14 36.8% 0 N/A% 0 N/A%
Parent functions
Drupal\Core\Cache\DatabaseBackend::prepareItem@10 N/A% 30 68.2% 6 15.8% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% 14 31.8% 32 84.2% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Database\Connection::query0 N/A% 33 75.0% 20 52.6% 0 N/A% 0 N/A%
array_keys0 N/A% 11 25.0% 18 47.4% 0 N/A% 0 N/A%
array_diff0 N/A% -10 -22.7% -5 -13.2% 0 N/A% 0 N/A%
drupal_static0 N/A% -6 -13.6% -6 -15.8% 0 N/A% 0 N/A%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% -4 -9.1% -3 -7.9% 0 N/A% 0 N/A%
array_fill_keys0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%