Diff Report
Run #517c1bb406b02: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c1c27a12c9: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #517c1bb406b02Run #517c1c27a12c9DiffDiff%
Number of Function Calls66 65 -1 -1.5%
Incl. Wall Time (microsec)5,270 4,970 -300 -5.7%
Incl. Wall Time (microsec) per call 80 76 -3 -4.2%
Excl. Wall Time (microsec)1,037 1,049 12 1.2%
Incl. CPU (microsecs)3,280 3,311 31 0.9%
Incl. CPU (microsecs) per call 50 51 1 2.5%
Excl. CPU (microsec)835 851 16 1.9%
Incl. MemUse (bytes)52,928 52,440 -488 -0.9%
Incl. MemUse (bytes) per call 802 807 5 0.6%
Excl. MemUse (bytes)-89,336 -87,224 2,112 2.4%
Incl. PeakMemUse (bytes)85,280 86,312 1,032 1.2%
Incl. PeakMemUse (bytes) per call 1,292 1,328 36 2.8%
Excl. PeakMemUse (bytes)15,512 15,008 -504 -3.2%

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::checksumTags-1 -25.0% -300 -0.1% 31 0.0% -488 -0.1% 1,032 0.2%
Exclusive Metrics Diff for Current Function12 4.0% 16 51.6% 2,112 432.8% -504 -48.8%
Parent functions
Drupal\Core\Cache\DatabaseBackend::prepareItem-1 -100.0% -300 -100.0% 34 109.7% -488 -100.0% 1,024 99.2%
Drupal\Core\Cache\DatabaseBackend::prepareItem@10 0.0% 0 0.0% -3 -9.7% 0 0.0% 8 0.8%
Child functions
Drupal\Core\Database\Connection::query0 0.0% -334 -111.3% -7 -22.6% 24 4.9% 968 93.8%
drupal_static-1 -33.3% 19 6.3% 7 22.6% 0 0.0% 40 3.9%
Drupal\Core\Database\Statement::fetchAllAssoc0 0.0% 13 4.3% 16 51.6% 0 0.0% 24 2.3%
array_diff-1 -33.3% -11 -3.7% -5 -16.1% -88 -18.0% 104 10.1%
array_keys-1 -33.3% 1 0.3% 4 12.9% -2,536 -519.7% 400 38.8%
array_fill_keys0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%