Diff Report
Run #5391fc871e91d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #5391fd5a43e70: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #5391fc871e91dRun #5391fd5a43e70DiffDiff%
Number of Function Calls65 65 0 0.0%
Incl. Wall Time (microsec)13,694 12,690 -1,004 -7.3%
Incl. Wall Time (microsec) per call 211 195 -15 -7.3%
Excl. Wall Time (microsec)1,977 1,889 -88 -4.5%
Incl. CPU (microsecs)7,948 7,585 -363 -4.6%
Incl. CPU (microsecs) per call 122 117 -6 -4.6%
Excl. CPU (microsec)1,664 1,640 -24 -1.4%
Incl. MemUse (bytes)34,624 34,624 0 0.0%
Incl. MemUse (bytes) per call 533 533 0 0.0%
Excl. MemUse (bytes)-94,152 -94,156 -4 -0.0%
Incl. PeakMemUse (bytes)72,084 71,060 -1,024 -1.4%
Incl. PeakMemUse (bytes) per call 1,109 1,093 -16 -1.4%
Excl. PeakMemUse (bytes)14,108 13,788 -320 -2.3%

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% -1,004 -60.2% -363 -90.8% 0 0.0% -1,024 -4.1%
Exclusive Metrics Diff for Current Function-88 -8.8% -24 -6.6% -4 N/A% -320 -31.2%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% -1,004 -100.0% -363 -100.0% 0 N/A% -1,024 -100.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% -836 -83.3% -220 -60.6% 0 N/A% -168 -16.4%
drupal_static0 N/A% -34 -3.4% -42 -11.6% 0 N/A% 0 0.0%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% -21 -2.1% -30 -8.3% 0 N/A% -16 -1.6%
array_keys0 N/A% -15 -1.5% -27 -7.4% 4 N/A% -532 -52.0%
array_diff0 N/A% -10 -1.0% -27 -7.4% 0 N/A% 12 1.2%
array_fill_keys0 N/A% 0 0.0% 7 1.9% 0 N/A% 0 0.0%