Diff Report
Run #53923e49d2b58: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53923d861ff11: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #53923e49d2b58Run #53923d861ff11DiffDiff%
Number of Function Calls87 87 0 0.0%
Incl. Wall Time (microsec)14,074 13,511 -563 -4.0%
Incl. Wall Time (microsec) per call 162 155 -6 -4.0%
Excl. Wall Time (microsec)2,320 2,364 44 1.9%
Incl. CPU (microsecs)8,664 8,272 -392 -4.5%
Incl. CPU (microsecs) per call 100 95 -5 -4.5%
Excl. CPU (microsec)2,003 2,018 15 0.7%
Incl. MemUse (bytes)40,352 40,344 -8 -0.0%
Incl. MemUse (bytes) per call 464 464 -0 -0.0%
Excl. MemUse (bytes)-128,248 -128,276 -28 -0.0%
Incl. PeakMemUse (bytes)77,252 87,708 10,456 13.5%
Incl. PeakMemUse (bytes) per call 888 1,008 120 13.5%
Excl. PeakMemUse (bytes)14,528 17,176 2,648 18.2%

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::checksumTags0 N/A% -563 -36.0% -392 -35.9% -8 -0.9% 10,456 1502.3%
Exclusive Metrics Diff for Current Function44 7.8% 15 3.8% -28 -350.0% 2,648 25.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% -563 -100.0% -392 -100.0% -8 -100.0% 10,456 100.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% -595 -105.7% -418 -106.6% 0 0.0% 7,276 69.6%
drupal_static0 N/A% -12 -2.1% -1 -0.3% 0 0.0% -928 -8.9%
array_diff0 N/A% -10 -1.8% -5 -1.3% 0 0.0% 172 1.6%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% 6 1.1% -2 -0.5% -8 -100.0% -60 -0.6%
array_keys0 N/A% 5 0.9% 21 5.4% 28 350.0% 1,348 12.9%
array_fill_keys0 N/A% -1 -0.2% -2 -0.5% 0 0.0% 0 0.0%