Diff Report
Run #519c04ab45451: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c03b86b1ec: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #519c04ab45451Run #519c03b86b1ecDiffDiff%
Number of Function Calls116 115 -1 -0.9%
Incl. Wall Time (microsec)8,502 8,029 -473 -5.6%
Incl. Wall Time (microsec) per call 73 70 -3 -4.7%
Excl. Wall Time (microsec)2,339 2,283 -56 -2.4%
Incl. CPU (microsecs)5,801 5,767 -34 -0.6%
Incl. CPU (microsecs) per call 50 50 0 0.3%
Excl. CPU (microsec)2,016 1,968 -48 -2.4%
Incl. MemUse (bytes)44,972 44,684 -288 -0.6%
Incl. MemUse (bytes) per call 388 389 1 0.2%
Excl. MemUse (bytes)-51,420 -50,452 968 1.9%
Incl. PeakMemUse (bytes)43,364 43,380 16 0.0%
Incl. PeakMemUse (bytes) per call 374 377 3 0.9%
Excl. PeakMemUse (bytes)12,252 12,276 24 0.2%

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% -473 -75.8% -34 -2.2% -288 -2.3% 16 0.1%
Exclusive Metrics Diff for Current Function-56 -11.8% -48 -141.2% 968 336.1% 24 150.0%
Parent functions
Drupal\Core\Cache\DatabaseBackend::prepareItem-1 -100.0% -388 -82.0% -32 -94.1% -288 -100.0% 16 100.0%
Drupal\Core\Cache\DatabaseBackend::prepareItem@10 0.0% -85 -18.0% -2 -5.9% 0 0.0% 0 0.0%
Child functions
Drupal\Core\Database\Connection::query0 0.0% -378 -79.9% 49 144.1% 0 0.0% 0 0.0%
drupal_static-1 -33.3% -28 -5.9% -32 -94.1% 0 0.0% 0 0.0%
array_diff-1 -33.3% -13 -2.7% -20 -58.8% -88 -30.6% 0 0.0%
array_keys-1 -33.3% 2 0.4% 20 58.8% -1,168 -405.6% -8 -50.0%
array_fill_keys0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Database\Statement::fetchAllAssoc0 0.0% 0 0.0% -3 -8.8% 0 0.0% 0 0.0%