Diff Report
Run #538e3b37c1a66: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #538e3ac0de109: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #538e3b37c1a66Run #538e3ac0de109DiffDiff%
Number of Function Calls60 58 -2 -3.3%
Incl. Wall Time (microsec)3,688 3,559 -129 -3.5%
Incl. Wall Time (microsec) per call 61 61 -0 -0.2%
Excl. Wall Time (microsec)875 842 -33 -3.8%
Incl. CPU (microsecs)2,587 2,529 -58 -2.2%
Incl. CPU (microsecs) per call 43 44 0 1.1%
Excl. CPU (microsec)693 680 -13 -1.9%
Incl. MemUse (bytes)52,176 51,200 -976 -1.9%
Incl. MemUse (bytes) per call 870 883 13 1.5%
Excl. MemUse (bytes)-114,960 -114,016 944 0.8%
Incl. PeakMemUse (bytes)87,024 87,104 80 0.1%
Incl. PeakMemUse (bytes) per call 1,450 1,502 51 3.5%
Excl. PeakMemUse (bytes)15,672 14,728 -944 -6.0%

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-2 -25.0% -129 -3.0% -58 -1.6% -976 -0.9% 80 0.1%
Exclusive Metrics Diff for Current Function-33 -25.6% -13 -22.4% 944 96.7% -944 -1180.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem-2 -100.0% -129 -100.0% -58 -100.0% -976 -100.0% 80 100.0%
Child functions
Drupal\Core\Database\Connection::query0 0.0% -92 -71.3% -24 -41.4% 0 0.0% 0 0.0%
array_diff-2 -33.3% -8 -6.2% -24 -41.4% -176 -18.0% 8 10.0%
drupal_static-2 -33.3% 4 3.1% -4 -6.9% 0 0.0% -48 -60.0%
array_keys-2 -33.3% -3 -2.3% 1 1.7% -1,744 -178.7% 1,064 1330.0%
Drupal\Core\Database\Statement::fetchAllAssoc0 0.0% 2 1.6% 4 6.9% 0 0.0% 0 0.0%
array_fill_keys0 0.0% 1 0.8% 2 3.4% 0 0.0% 0 0.0%