Diff Report
Run #51ec489b18752: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec485525502: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec489b18752Run #51ec485525502DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)858 2,297 1,439 167.7%
Incl. Wall Time (microsec) per call 858 2,297 1,439 167.7%
Excl. Wall Time (microsec)36 48 12 33.3%
Incl. CPU (microsecs)413 518 105 25.4%
Incl. CPU (microsecs) per call 413 518 105 25.4%
Excl. CPU (microsec)29 40 11 37.9%
Incl. MemUse (bytes)67,856 67,856 0 0.0%
Incl. MemUse (bytes) per call 67,856 67,856 0 0.0%
Excl. MemUse (bytes)1,552 1,552 0 0.0%
Incl. PeakMemUse (bytes)48,616 48,616 0 0.0%
Incl. PeakMemUse (bytes) per call 48,616 48,616 0 0.0%
Excl. PeakMemUse (bytes)1,736 1,736 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% 1,439 140.8% 105 26.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function12 0.8% 11 10.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% 1,439 100.0% 105 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 1,406 97.7% 73 69.5% 0 N/A% 0 N/A%
db_insert0 N/A% 16 1.1% 16 15.2% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Insert::fields0 N/A% 2 0.1% 2 1.9% 0 N/A% 0 N/A%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% 2 0.1% 3 2.9% 0 N/A% 0 N/A%
max0 N/A% 1 0.1% 1 1.0% 0 N/A% 0 N/A%
microtime0 N/A% 0 0.0% -1 -1.0% 0 N/A% 0 N/A%