Diff Report
Run #51ec243650361: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec227a9cea0: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec243650361Run #51ec227a9cea0DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,303 2,303 0 0.0%
Incl. Wall Time (microsec) per call 2,303 2,303 0 0.0%
Excl. Wall Time (microsec)37 38 1 2.7%
Incl. CPU (microsecs)460 458 -2 -0.4%
Incl. CPU (microsecs) per call 460 458 -2 -0.4%
Excl. CPU (microsec)31 35 4 12.9%
Incl. MemUse (bytes)67,704 67,696 -8 -0.0%
Incl. MemUse (bytes) per call 67,704 67,696 -8 -0.0%
Excl. MemUse (bytes)1,568 1,568 0 0.0%
Incl. PeakMemUse (bytes)34,928 38,736 3,808 10.9%
Incl. PeakMemUse (bytes) per call 34,928 38,736 3,808 10.9%
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% 0 0.0% -2 -0.0% -8 -0.0% 3,808 11.9%
Exclusive Metrics Diff for Current Function1 N/A% 4 200.0% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% 0 N/A% -2 -100.0% -8 -100.0% 3,808 100.0%
Child functions
db_insert0 N/A% -10 N/A% -10 -500.0% -8 -100.0% 3,808 100.0%
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 8 N/A% 7 350.0% 0 0.0% 0 0.0%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% 1 N/A% 1 50.0% 0 0.0% 0 0.0%
max0 N/A% 0 N/A% -1 -50.0% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\Insert::fields0 N/A% 0 N/A% -2 -100.0% 0 0.0% 0 0.0%
microtime0 N/A% 0 N/A% -1 -50.0% 0 0.0% 0 0.0%