Diff Report
Run #51ec52a09990a: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec517fc2424: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec52a09990aRun #51ec517fc2424DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,360 2,176 -184 -7.8%
Incl. Wall Time (microsec) per call 2,360 2,176 -184 -7.8%
Excl. Wall Time (microsec)39 45 6 15.4%
Incl. CPU (microsecs)468 458 -10 -2.1%
Incl. CPU (microsecs) per call 468 458 -10 -2.1%
Excl. CPU (microsec)33 38 5 15.2%
Incl. MemUse (bytes)67,776 67,720 -56 -0.1%
Incl. MemUse (bytes) per call 67,776 67,720 -56 -0.1%
Excl. MemUse (bytes)1,568 1,568 0 0.0%
Incl. PeakMemUse (bytes)49,344 47,616 -1,728 -3.5%
Incl. PeakMemUse (bytes) per call 49,344 47,616 -1,728 -3.5%
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% -184 -4.5% -10 -0.2% -56 -0.3% -1,728 -7.5%
Exclusive Metrics Diff for Current Function6 3.3% 5 50.0% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% -184 -100.0% -10 -100.0% -56 -100.0% -1,728 -100.0%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% -179 -97.3% -4 -40.0% 0 0.0% 0 0.0%
db_insert0 N/A% -6 -3.3% -6 -60.0% -32 -57.1% -1,728 -100.0%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% -3 -1.6% -3 -30.0% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\Insert::fields0 N/A% -2 -1.1% -2 -20.0% 0 0.0% 0 0.0%
microtime0 N/A% 0 0.0% 0 0.0% -24 -42.9% 0 0.0%
max0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%