Diff Report
Run #52c641a950046: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c642960e9a6: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #52c641a950046Run #52c642960e9a6DiffDiff%
Number of Function Calls155 155 0 0.0%
Incl. Wall Time (microsec)4,771 4,696 -75 -1.6%
Incl. Wall Time (microsec) per call 31 30 -0 -1.6%
Excl. Wall Time (microsec)1,687 1,605 -82 -4.9%
Incl. CPU (microsecs)3,919 3,841 -78 -2.0%
Incl. CPU (microsecs) per call 25 25 -1 -2.0%
Excl. CPU (microsec)1,375 1,328 -47 -3.4%
Incl. MemUse (bytes)99,560 99,576 16 0.0%
Incl. MemUse (bytes) per call 642 642 0 0.0%
Excl. MemUse (bytes)-180,768 -181,392 -624 -0.3%
Incl. PeakMemUse (bytes)76,256 76,040 -216 -0.3%
Incl. PeakMemUse (bytes) per call 492 491 -1 -0.3%
Excl. PeakMemUse (bytes)12,856 12,656 -200 -1.6%

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% -75 -2.6% -78 -3.0% 16 0.1% -216 -0.7%
Exclusive Metrics Diff for Current Function-82 -109.3% -47 -60.3% -624 -3900.0% -200 -92.6%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% -75 -100.0% -78 -100.0% 16 100.0% -216 -100.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% 13 17.3% 2 2.6% 72 450.0% 24 11.1%
drupal_static0 N/A% -11 -14.7% -33 -42.3% 0 0.0% 0 0.0%
array_fill_keys0 N/A% 4 5.3% 2 2.6% 0 0.0% 0 0.0%
array_diff0 N/A% 4 5.3% 2 2.6% -16 -100.0% -8 -3.7%
array_keys0 N/A% -2 -2.7% -5 -6.4% 560 3500.0% -32 -14.8%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% -1 -1.3% 1 1.3% 24 150.0% 0 0.0%