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

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #541de429e5ab1Run #541de5cbd937aDiffDiff%
Number of Function Calls147 147 0 0.0%
Incl. Wall Time (microsec)7,209 6,815 -394 -5.5%
Incl. Wall Time (microsec) per call 49 46 -3 -5.5%
Excl. Wall Time (microsec)2,203 2,171 -32 -1.5%
Incl. CPU (microsecs)5,927 5,672 -255 -4.3%
Incl. CPU (microsecs) per call 40 39 -2 -4.3%
Excl. CPU (microsec)1,868 1,839 -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)-273,808 -275,048 -1,240 -0.5%
Incl. PeakMemUse (bytes)193,912 195,048 1,136 0.6%
Incl. PeakMemUse (bytes) per call 1,319 1,327 8 0.6%
Excl. PeakMemUse (bytes)68,536 68,760 224 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 Function-32 -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%