Diff Report
Run #541de5cbd937a: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #541de429e5ab1: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #541de5cbd937aRun #541de429e5ab1DiffDiff%
Number of Function Calls147 147 0 0.0%
Incl. Wall Time (microsec)6,815 7,209 394 5.8%
Incl. Wall Time (microsec) per call 46 49 3 5.8%
Excl. Wall Time (microsec)2,171 2,203 32 1.5%
Incl. CPU (microsecs)5,672 5,927 255 4.5%
Incl. CPU (microsecs) per call 39 40 2 4.5%
Excl. CPU (microsec)1,839 1,868 29 1.6%
Incl. MemUse (bytes)103,224 103,224 0 0.0%
Incl. MemUse (bytes) per call 702 702 0 0.0%
Excl. MemUse (bytes)-275,048 -273,808 1,240 0.5%
Incl. PeakMemUse (bytes)195,048 193,912 -1,136 -0.6%
Incl. PeakMemUse (bytes) per call 1,327 1,319 -8 -0.6%
Excl. PeakMemUse (bytes)68,760 68,536 -224 -0.3%

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% 394 4.3% 255 3.1% 0 0.0% -1,136 -0.9%
Exclusive Metrics Diff for Current Function32 8.1% 29 11.4% 1,240 N/A% -224 -19.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% 394 100.0% 255 100.0% 0 N/A% -1,136 -100.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% 340 86.3% 192 75.3% -24 N/A% 0 0.0%
drupal_static0 N/A% 20 5.1% 26 10.2% 0 N/A% 0 0.0%
array_keys0 N/A% -16 -4.1% -25 -9.8% -1,216 N/A% -792 -69.7%
array_diff0 N/A% 14 3.6% 26 10.2% 0 N/A% -120 -10.6%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% 5 1.3% 7 2.7% 0 N/A% 0 0.0%
array_fill_keys0 N/A% -1 -0.3% 0 0.0% 0 N/A% 0 0.0%