Diff Report
Run #51ba946b609ed: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51ba929760d1b: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #51ba946b609edRun #51ba929760d1bDiffDiff%
Number of Function Calls43 43 0 0.0%
Incl. Wall Time (microsec)4,136 4,067 -69 -1.7%
Incl. Wall Time (microsec) per call 96 95 -2 -1.7%
Excl. Wall Time (microsec)816 780 -36 -4.4%
Incl. CPU (microsecs)2,616 2,540 -76 -2.9%
Incl. CPU (microsecs) per call 61 59 -2 -2.9%
Excl. CPU (microsec)668 619 -49 -7.3%
Incl. MemUse (bytes)39,824 39,704 -120 -0.3%
Incl. MemUse (bytes) per call 926 923 -3 -0.3%
Excl. MemUse (bytes)-42,592 -39,736 2,856 6.7%
Incl. PeakMemUse (bytes)19,344 30,768 11,424 59.1%
Incl. PeakMemUse (bytes) per call 450 716 266 59.1%
Excl. PeakMemUse (bytes)3,368 4,448 1,080 32.1%

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% -69 -0.0% -76 -0.0% -120 -0.0% 11,424 0.0%
Exclusive Metrics Diff for Current Function-36 -52.2% -49 -64.5% 2,856 2380.0% 1,080 9.5%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% -69 -100.0% -76 -100.0% -120 -100.0% 11,424 100.0%
Child functions
Drupal\Core\Database\Connection::query0 N/A% 31 44.9% 30 39.5% 32 26.7% 8,144 71.3%
array_keys0 N/A% -25 -36.2% -14 -18.4% -2,976 -2480.0% 1,704 14.9%
Drupal\Core\Database\Statement::fetchAllAssoc0 N/A% -24 -34.8% -24 -31.6% -24 -20.0% -96 -0.8%
drupal_static0 N/A% -9 -13.0% -17 -22.4% 0 0.0% 96 0.8%
array_diff0 N/A% -6 -8.7% 3 3.9% -8 -6.7% 496 4.3%
array_fill_keys0 N/A% 0 0.0% -5 -6.6% 0 0.0% 0 0.0%