Diff Report
Run #531ee657ba49e: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #531ee5f3237b0: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #531ee657ba49eRun #531ee5f3237b0DiffDiff%
Number of Function Calls83 82 -1 -1.2%
Incl. Wall Time (microsec)4,952 5,033 81 1.6%
Incl. Wall Time (microsec) per call 60 61 2 2.9%
Excl. Wall Time (microsec)1,125 1,177 52 4.6%
Incl. CPU (microsecs)3,619 3,701 82 2.3%
Incl. CPU (microsecs) per call 44 45 2 3.5%
Excl. CPU (microsec)905 967 62 6.9%
Incl. MemUse (bytes)72,144 71,624 -520 -0.7%
Incl. MemUse (bytes) per call 869 873 4 0.5%
Excl. MemUse (bytes)-191,992 -191,784 208 0.1%
Incl. PeakMemUse (bytes)125,264 130,160 4,896 3.9%
Incl. PeakMemUse (bytes) per call 1,509 1,587 78 5.2%
Excl. PeakMemUse (bytes)31,144 32,832 1,688 5.4%

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::checksumTags-1 -25.0% 81 3.2% 82 2.7% -520 -0.7% 4,896 6.3%
Exclusive Metrics Diff for Current Function52 64.2% 62 75.6% 208 40.0% 1,688 34.5%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem-1 -100.0% 81 100.0% 82 100.0% -520 -100.0% 4,896 100.0%
Child functions
Drupal\Core\Database\Connection::query0 0.0% 32 39.5% 26 31.7% 24 4.6% 56 1.1%
array_keys-1 -33.3% 23 28.4% 26 31.7% -664 -127.7% 3,032 61.9%
drupal_static-1 -33.3% -20 -24.7% -17 -20.7% 0 0.0% 0 0.0%
array_diff-1 -33.3% -14 -17.3% -14 -17.1% -88 -16.9% 120 2.5%
Drupal\Core\Database\Statement::fetchAllAssoc0 0.0% 10 12.3% 5 6.1% 0 0.0% 0 0.0%
array_fill_keys0 0.0% -2 -2.5% -6 -7.3% 0 0.0% 0 0.0%