Diff Report
Run #519c60f26cf68: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c6200dd578: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #519c60f26cf68Run #519c6200dd578DiffDiff%
Number of Function Calls113 113 0 0.0%
Incl. Wall Time (microsec)8,316 8,293 -23 -0.3%
Incl. Wall Time (microsec) per call 74 73 -0 -0.3%
Excl. Wall Time (microsec)2,317 2,266 -51 -2.2%
Incl. CPU (microsecs)5,834 5,713 -121 -2.1%
Incl. CPU (microsecs) per call 52 51 -1 -2.1%
Excl. CPU (microsec)2,004 1,958 -46 -2.3%
Incl. MemUse (bytes)43,620 43,620 0 0.0%
Incl. MemUse (bytes) per call 386 386 0 0.0%
Excl. MemUse (bytes)-50,312 -50,304 8 0.0%
Incl. PeakMemUse (bytes)40,908 40,840 -68 -0.2%
Incl. PeakMemUse (bytes) per call 362 361 -1 -0.2%
Excl. PeakMemUse (bytes)10,976 10,952 -24 -0.2%

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::checksumTags0 N/A% -23 -0.3% -121 -1.7% 0 0.0% -68 -0.0%
Exclusive Metrics Diff for Current Function-51 -221.7% -46 -38.0% 8 N/A% -24 -35.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% -23 -100.0% -121 -100.0% 0 N/A% -68 -100.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% 46 200.0% -59 -48.8% 0 N/A% 8 11.8%
drupal_static0 N/A% -18 -78.3% 1 0.8% 0 N/A% 0 0.0%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% -7 -30.4% -4 -3.3% 0 N/A% 0 0.0%
array_diff0 N/A% 6 26.1% -7 -5.8% 0 N/A% -4 -5.9%
array_keys0 N/A% 1 4.3% -3 -2.5% -8 N/A% -48 -70.6%
array_fill_keys0 N/A% 0 0.0% -3 -2.5% 0 N/A% 0 0.0%