Diff Report
Run #51ec623000e0c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec6582d0962: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec623000e0cRun #51ec6582d0962DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,288 2,322 34 1.5%
Incl. Wall Time (microsec) per call 2,288 2,322 34 1.5%
Excl. Wall Time (microsec)43 45 2 4.7%
Incl. CPU (microsecs)472 513 41 8.7%
Incl. CPU (microsecs) per call 472 513 41 8.7%
Excl. CPU (microsec)36 39 3 8.3%
Incl. MemUse (bytes)67,696 67,696 0 0.0%
Incl. MemUse (bytes) per call 67,696 67,696 0 0.0%
Excl. MemUse (bytes)1,568 1,568 0 0.0%
Incl. PeakMemUse (bytes)39,328 39,328 0 0.0%
Incl. PeakMemUse (bytes) per call 39,328 39,328 0 0.0%
Excl. PeakMemUse (bytes)1,824 1,824 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% 34 1.3% 41 3.4% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function2 5.9% 3 7.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% 34 100.0% 41 100.0% 0 N/A% 0 N/A%
Child functions
db_insert0 N/A% 17 50.0% 16 39.0% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Insert::fields0 N/A% 8 23.5% 7 17.1% 0 N/A% 0 N/A%
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 6 17.6% 13 31.7% 0 N/A% 0 N/A%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% 1 2.9% 2 4.9% 0 N/A% 0 N/A%
max0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%
microtime0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%