Diff Report
Run #52d3e812c7cf2: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d3e85377bba: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #52d3e812c7cf2Run #52d3e85377bbaDiffDiff%
Number of Function Calls77 75 -2 -2.6%
Incl. Wall Time (microsec)3,217 3,177 -40 -1.2%
Incl. Wall Time (microsec) per call 42 42 1 1.4%
Excl. Wall Time (microsec)863 815 -48 -5.6%
Incl. CPU (microsecs)2,478 2,417 -61 -2.5%
Incl. CPU (microsecs) per call 32 32 0 0.1%
Excl. CPU (microsec)695 666 -29 -4.2%
Incl. MemUse (bytes)59,168 58,200 -968 -1.6%
Incl. MemUse (bytes) per call 768 776 8 1.0%
Excl. MemUse (bytes)-110,904 -109,664 1,240 1.1%
Incl. PeakMemUse (bytes)95,128 94,800 -328 -0.3%
Incl. PeakMemUse (bytes) per call 1,235 1,264 29 2.3%
Excl. PeakMemUse (bytes)15,432 15,680 248 1.6%

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% -40 -2.4% -61 -3.8% -968 -0.8% -328 -0.3%
Exclusive Metrics Diff for Current Function-48 -120.0% -29 -47.5% 1,240 128.1% 248 75.6%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem-2 -100.0% -40 -100.0% -61 -100.0% -968 -100.0% -328 -100.0%
Child functions
Drupal\Core\Database\Connection::query0 0.0% 7 17.5% -6 -9.8% 0 0.0% 32 9.8%
array_fill_keys0 0.0% 3 7.5% -2 -3.3% 0 0.0% 0 0.0%
array_keys-2 -33.3% -3 -7.5% -14 -23.0% -2,040 -210.7% -376 -114.6%
Drupal\Core\Database\Statement::fetchAllAssoc0 0.0% 1 2.5% -4 -6.6% 8 0.8% 8 2.4%
array_diff-2 -33.3% -1 -2.5% -11 -18.0% -176 -18.2% -192 -58.5%
drupal_static-2 -33.3% 1 2.5% 5 8.2% 0 0.0% -48 -14.6%