Diff Report
Run #51ec517fc2424: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec51f5849d9: 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 #51ec51f5849d9DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,176 2,311 135 6.2%
Incl. Wall Time (microsec) per call 2,176 2,311 135 6.2%
Excl. Wall Time (microsec)45 47 2 4.4%
Incl. CPU (microsecs)458 454 -4 -0.9%
Incl. CPU (microsecs) per call 458 454 -4 -0.9%
Excl. CPU (microsec)38 37 -1 -2.6%
Incl. MemUse (bytes)67,720 67,720 0 0.0%
Incl. MemUse (bytes) per call 67,720 67,720 0 0.0%
Excl. MemUse (bytes)1,568 1,568 0 0.0%
Incl. PeakMemUse (bytes)47,616 47,616 0 0.0%
Incl. PeakMemUse (bytes) per call 47,616 47,616 0 0.0%
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% 135 4.6% -4 -0.1% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function2 1.5% -1 -25.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% 135 100.0% -4 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 133 98.5% -6 -150.0% 0 N/A% 0 N/A%
microtime0 N/A% 1 0.7% 0 0.0% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Insert::fields0 N/A% -1 -0.7% 0 0.0% 0 N/A% 0 N/A%
db_insert0 N/A% 0 0.0% 1 25.0% 0 N/A% 0 N/A%
max0 N/A% 0 0.0% 2 50.0% 0 N/A% 0 N/A%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%