Diff Report
Run #51ec6582d0962: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec623000e0c: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec6582d0962Run #51ec623000e0cDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,322 2,288 -34 -1.5%
Incl. Wall Time (microsec) per call 2,322 2,288 -34 -1.5%
Excl. Wall Time (microsec)45 43 -2 -4.4%
Incl. CPU (microsecs)513 472 -41 -8.0%
Incl. CPU (microsecs) per call 513 472 -41 -8.0%
Excl. CPU (microsec)39 36 -3 -7.7%
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 Function-2 -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%