Diff Report
Run #519c146573182: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c116ac5313: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #519c146573182Run #519c116ac5313DiffDiff%
Number of Function Calls108 108 0 0.0%
Incl. Wall Time (microsec)7,897 8,137 240 3.0%
Incl. Wall Time (microsec) per call 73 75 2 3.0%
Excl. Wall Time (microsec)2,155 2,093 -62 -2.9%
Incl. CPU (microsecs)5,527 5,436 -91 -1.6%
Incl. CPU (microsecs) per call 51 50 -1 -1.6%
Excl. CPU (microsec)1,897 1,802 -95 -5.0%
Incl. MemUse (bytes)42,180 42,180 0 0.0%
Incl. MemUse (bytes) per call 391 391 0 0.0%
Excl. MemUse (bytes)-44,212 -44,216 -4 -0.0%
Incl. PeakMemUse (bytes)39,488 39,464 -24 -0.1%
Incl. PeakMemUse (bytes) per call 366 365 -0 -0.1%
Excl. PeakMemUse (bytes)10,100 10,100 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% 240 0.4% -91 -0.1% 0 0.0% -24 -0.0%
Exclusive Metrics Diff for Current Function-62 -25.8% -95 -104.4% -4 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% 240 100.0% -91 -100.0% 0 N/A% -24 -100.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% 335 139.6% 8 8.8% 0 N/A% 0 0.0%
array_keys0 N/A% -25 -10.4% -14 -15.4% 4 N/A% -24 -100.0%
drupal_static0 N/A% -12 -5.0% -3 -3.3% 0 N/A% 0 0.0%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% 4 1.7% 8 8.8% 0 N/A% 0 0.0%
array_fill_keys0 N/A% 1 0.4% 2 2.2% 0 N/A% 0 0.0%
array_diff0 N/A% -1 -0.4% 3 3.3% 0 N/A% 0 0.0%