Diff Report
Run #5198f0bb880ef: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198f1db1bc51: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #5198f0bb880efRun #5198f1db1bc51DiffDiff%
Number of Function Calls107 108 1 0.9%
Incl. Wall Time (microsec)6,869 7,039 170 2.5%
Incl. Wall Time (microsec) per call 64 65 1 1.5%
Excl. Wall Time (microsec)1,707 1,755 48 2.8%
Incl. CPU (microsecs)4,605 4,655 50 1.1%
Incl. CPU (microsecs) per call 43 43 0 0.1%
Excl. CPU (microsec)1,448 1,461 13 0.9%
Incl. MemUse (bytes)74,680 75,168 488 0.7%
Incl. MemUse (bytes) per call 698 696 -2 -0.3%
Excl. MemUse (bytes)-127,360 -129,448 -2,088 -1.6%
Incl. PeakMemUse (bytes)75,568 75,304 -264 -0.3%
Incl. PeakMemUse (bytes) per call 706 697 -9 -1.3%
Excl. PeakMemUse (bytes)18,848 17,688 -1,160 -6.2%

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::checksumTags1 25.0% 170 10.6% 50 2.3% 488 1.7% -264 -0.7%
Exclusive Metrics Diff for Current Function48 28.2% 13 26.0% -2,088 -427.9% -1,160 -439.4%
Parent functions
Drupal\Core\Cache\DatabaseBackend::prepareItem1 100.0% 181 106.5% 62 124.0% 488 100.0% -264 -100.0%
Drupal\Core\Cache\DatabaseBackend::prepareItem@10 0.0% -11 -6.5% -12 -24.0% 0 0.0% 0 0.0%
Child functions
Drupal\Core\Database\Connection::query0 0.0% 114 67.1% 1 2.0% 0 0.0% 72 27.3%
Drupal\Core\Database\Statement::fetchAllAssoc0 0.0% 24 14.1% 20 40.0% 0 0.0% 0 0.0%
array_keys1 33.3% -10 -5.9% 14 28.0% 2,488 509.8% 736 278.8%
array_diff1 33.3% -9 -5.3% -1 -2.0% 88 18.0% 88 33.3%
drupal_static1 33.3% 3 1.8% 10 20.0% 0 0.0% 0 0.0%
array_fill_keys0 0.0% 0 0.0% -7 -14.0% 0 0.0% 0 0.0%