Diff Report
Run #51990c6b6ce43: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51990ceb6ce00: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #51990c6b6ce43Run #51990ceb6ce00DiffDiff%
Number of Function Calls73 73 0 0.0%
Incl. Wall Time (microsec)2,808 3,011 203 7.2%
Incl. Wall Time (microsec) per call 38 41 3 7.2%
Excl. Wall Time (microsec)899 930 31 3.4%
Incl. CPU (microsecs)2,200 2,307 107 4.9%
Incl. CPU (microsecs) per call 30 32 1 4.9%
Excl. CPU (microsec)741 748 7 0.9%
Incl. MemUse (bytes)51,976 51,976 0 0.0%
Incl. MemUse (bytes) per call 712 712 0 0.0%
Excl. MemUse (bytes)-42,616 -42,616 0 0.0%
Incl. PeakMemUse (bytes)47,912 48,176 264 0.6%
Incl. PeakMemUse (bytes) per call 656 660 4 0.6%
Excl. PeakMemUse (bytes)7,552 7,552 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% 203 45.1% 107 8.7% 0 0.0% 264 0.9%
Exclusive Metrics Diff for Current Function31 15.3% 7 6.5% 0 N/A% 0 0.0%
Parent functions
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% 206 101.5% 109 101.9% 0 N/A% 272 103.0%
Drupal\Core\Cache\DatabaseBackend::prepareItem@10 N/A% -3 -1.5% -2 -1.9% 0 N/A% -8 -3.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% 135 66.5% 52 48.6% 0 N/A% 0 0.0%
array_keys0 N/A% 24 11.8% 21 19.6% 0 N/A% 80 30.3%
array_diff0 N/A% -16 -7.9% -6 -5.6% 0 N/A% 184 69.7%
drupal_static0 N/A% 15 7.4% 18 16.8% 0 N/A% 0 0.0%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% 14 6.9% 13 12.1% 0 N/A% 0 0.0%
array_fill_keys0 N/A% 0 0.0% 2 1.9% 0 N/A% 0 0.0%