Diff Report
Run #51978cc86c728: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51978d4d92dd9: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #51978cc86c728Run #51978d4d92dd9DiffDiff%
Number of Function Calls93 94 1 1.1%
Incl. Wall Time (microsec)5,575 5,803 228 4.1%
Incl. Wall Time (microsec) per call 60 62 2 3.0%
Excl. Wall Time (microsec)1,524 1,512 -12 -0.8%
Incl. CPU (microsecs)3,894 3,964 70 1.8%
Incl. CPU (microsecs) per call 42 42 0 0.7%
Excl. CPU (microsec)1,280 1,236 -44 -3.4%
Incl. MemUse (bytes)69,200 69,720 520 0.8%
Incl. MemUse (bytes) per call 744 742 -2 -0.3%
Excl. MemUse (bytes)-105,040 -106,648 -1,608 -1.5%
Incl. PeakMemUse (bytes)92,216 94,192 1,976 2.1%
Incl. PeakMemUse (bytes) per call 992 1,002 10 1.1%
Excl. PeakMemUse (bytes)21,360 21,752 392 1.8%

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::checksumTags1 25.0% 228 91.6% 70 57.9% 520 2.4% 1,976 8.5%
Exclusive Metrics Diff for Current Function-12 -5.3% -44 -62.9% -1,608 -309.2% 392 19.8%
Parent functions
Drupal\Core\Cache\DatabaseBackend::prepareItem1 100.0% 137 60.1% 56 80.0% 520 100.0% 1,976 100.0%
Drupal\Core\Cache\DatabaseBackend::prepareItem@10 0.0% 91 39.9% 14 20.0% 0 0.0% 0 0.0%
Child functions
array_keys1 33.3% 0 0.0% 5 7.1% 2,040 392.3% 1,464 74.1%
array_diff1 33.3% 0 0.0% 0 0.0% 88 16.9% 128 6.5%
Drupal\Core\Database\Connection::query0 0.0% 226 99.1% 82 117.1% 0 0.0% -56 -2.8%
drupal_static1 33.3% -9 -3.9% 0 0.0% 0 0.0% 48 2.4%
array_fill_keys0 0.0% 0 0.0% 2 2.9% 0 0.0% 0 0.0%
Drupal\Core\Database\Statement::fetchAllAssoc0 0.0% 23 10.1% 25 35.7% 0 0.0% 0 0.0%