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

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #52c642960e9a6Run #52c641a950046DiffDiff%
Number of Function Calls155 155 0 0.0%
Incl. Wall Time (microsec)4,696 4,771 75 1.6%
Incl. Wall Time (microsec) per call 30 31 0 1.6%
Excl. Wall Time (microsec)1,605 1,687 82 5.1%
Incl. CPU (microsecs)3,841 3,919 78 2.0%
Incl. CPU (microsecs) per call 25 25 1 2.0%
Excl. CPU (microsec)1,328 1,375 47 3.5%
Incl. MemUse (bytes)99,576 99,560 -16 -0.0%
Incl. MemUse (bytes) per call 642 642 -0 -0.0%
Excl. MemUse (bytes)-181,392 -180,768 624 0.3%
Incl. PeakMemUse (bytes)76,040 76,256 216 0.3%
Incl. PeakMemUse (bytes) per call 491 492 1 0.3%
Excl. PeakMemUse (bytes)12,656 12,856 200 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 Function82 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%