Diff Report
Run #517c75d3de7c7: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c76da9b0d3: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #517c75d3de7c7Run #517c76da9b0d3DiffDiff%
Number of Function Calls66 65 -1 -1.5%
Incl. Wall Time (microsec)5,151 4,747 -404 -7.8%
Incl. Wall Time (microsec) per call 78 73 -5 -6.4%
Excl. Wall Time (microsec)1,090 1,040 -50 -4.6%
Incl. CPU (microsecs)3,351 3,237 -114 -3.4%
Incl. CPU (microsecs) per call 51 50 -1 -1.9%
Excl. CPU (microsec)933 869 -64 -6.9%
Incl. MemUse (bytes)52,928 52,440 -488 -0.9%
Incl. MemUse (bytes) per call 802 807 5 0.6%
Excl. MemUse (bytes)-89,296 -87,184 2,112 2.4%
Incl. PeakMemUse (bytes)83,136 83,208 72 0.1%
Incl. PeakMemUse (bytes) per call 1,260 1,280 20 1.6%
Excl. PeakMemUse (bytes)14,584 14,056 -528 -3.6%

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-1 -25.0% -404 -0.2% -114 -0.1% -488 -0.2% 72 0.0%
Exclusive Metrics Diff for Current Function-50 -12.4% -64 -56.1% 2,112 432.8% -528 -733.3%
Parent functions
Drupal\Core\Cache\DatabaseBackend::prepareItem-1 -100.0% -433 -107.2% -146 -128.1% -488 -100.0% 72 100.0%
Drupal\Core\Cache\DatabaseBackend::prepareItem@10 0.0% 29 7.2% 32 28.1% 0 0.0% 0 0.0%
Child functions
Drupal\Core\Database\Connection::query0 0.0% -325 -80.4% -40 -35.1% 8 1.6% 440 611.1%
drupal_static-1 -33.3% -10 -2.5% -16 -14.0% 0 0.0% -32 -44.4%
array_keys-1 -33.3% -8 -2.0% 7 6.1% -2,520 -516.4% 88 122.2%
Drupal\Core\Database\Statement::fetchAllAssoc0 0.0% -6 -1.5% -5 -4.4% 0 0.0% 8 11.1%
array_diff-1 -33.3% -5 -1.2% 4 3.5% -88 -18.0% 96 133.3%
array_fill_keys0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%