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

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec485525502Run #51ec489b18752DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,297 858 -1,439 -62.6%
Incl. Wall Time (microsec) per call 2,297 858 -1,439 -62.6%
Excl. Wall Time (microsec)48 36 -12 -25.0%
Incl. CPU (microsecs)518 413 -105 -20.3%
Incl. CPU (microsecs) per call 518 413 -105 -20.3%
Excl. CPU (microsec)40 29 -11 -27.5%
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 Function-12 -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%