Diff Report
Run #51ec623000e0c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec66a5a877d: 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 #51ec66a5a877dDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,288 2,286 -2 -0.1%
Incl. Wall Time (microsec) per call 2,288 2,286 -2 -0.1%
Excl. Wall Time (microsec)43 39 -4 -9.3%
Incl. CPU (microsecs)472 452 -20 -4.2%
Incl. CPU (microsecs) per call 472 452 -20 -4.2%
Excl. CPU (microsec)36 29 -7 -19.4%
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 23,512 -15,816 -40.2%
Incl. PeakMemUse (bytes) per call 39,328 23,512 -15,816 -40.2%
Excl. PeakMemUse (bytes)1,824 856 -968 -53.1%

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% -2 -0.1% -20 -0.6% 0 0.0% -15,816 -21.7%
Exclusive Metrics Diff for Current Function-4 -200.0% -7 -35.0% 0 N/A% -968 -6.1%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% -2 -100.0% -20 -100.0% 0 N/A% -15,816 -100.0%
Child functions
db_insert0 N/A% -10 -500.0% -9 -45.0% 0 N/A% -12,288 -77.7%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% 1 50.0% 1 5.0% 0 N/A% -3,240 -20.5%
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 13 650.0% -4 -20.0% 0 N/A% 736 4.7%
Drupal\Core\Database\Query\Insert::fields0 N/A% -2 -100.0% -2 -10.0% 0 N/A% -56 -0.4%
microtime0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 0.0%
max0 N/A% 0 0.0% 1 5.0% 0 N/A% 0 0.0%