Diff Report
Run #51ec517fc2424: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec52a09990a: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec517fc2424Run #51ec52a09990aDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,176 2,360 184 8.5%
Incl. Wall Time (microsec) per call 2,176 2,360 184 8.5%
Excl. Wall Time (microsec)45 39 -6 -13.3%
Incl. CPU (microsecs)458 468 10 2.2%
Incl. CPU (microsecs) per call 458 468 10 2.2%
Excl. CPU (microsec)38 33 -5 -13.2%
Incl. MemUse (bytes)67,720 67,776 56 0.1%
Incl. MemUse (bytes) per call 67,720 67,776 56 0.1%
Excl. MemUse (bytes)1,568 1,568 0 0.0%
Incl. PeakMemUse (bytes)47,616 49,344 1,728 3.6%
Incl. PeakMemUse (bytes) per call 47,616 49,344 1,728 3.6%
Excl. PeakMemUse (bytes)1,560 1,560 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Lock\DatabaseLockBackend::acquire [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\Lock\DatabaseLockBackend::acquire0 N/A% 184 4.5% 10 0.2% 56 0.3% 1,728 7.5%
Exclusive Metrics Diff for Current Function-6 -3.3% -5 -50.0% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% 184 100.0% 10 100.0% 56 100.0% 1,728 100.0%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 179 97.3% 4 40.0% 0 0.0% 0 0.0%
db_insert0 N/A% 6 3.3% 6 60.0% 32 57.1% 1,728 100.0%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% 3 1.6% 3 30.0% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\Insert::fields0 N/A% 2 1.1% 2 20.0% 0 0.0% 0 0.0%
microtime0 N/A% 0 0.0% 0 0.0% 24 42.9% 0 0.0%
max0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%