Diff Report
Run #51ec5d631cb28: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec5ca916d7d: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec5d631cb28Run #51ec5ca916d7dDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)924 875 -49 -5.3%
Incl. Wall Time (microsec) per call 924 875 -49 -5.3%
Excl. Wall Time (microsec)32 34 2 6.2%
Incl. CPU (microsecs)432 418 -14 -3.2%
Incl. CPU (microsecs) per call 432 418 -14 -3.2%
Excl. CPU (microsec)24 26 2 8.3%
Incl. MemUse (bytes)67,720 67,720 0 0.0%
Incl. MemUse (bytes) per call 67,720 67,720 0 0.0%
Excl. MemUse (bytes)1,568 1,568 0 0.0%
Incl. PeakMemUse (bytes)52,800 52,656 -144 -0.3%
Incl. PeakMemUse (bytes) per call 52,800 52,656 -144 -0.3%
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% -49 -0.6% -14 -0.2% 0 0.0% -144 -0.2%
Exclusive Metrics Diff for Current Function2 4.1% 2 14.3% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% -49 -100.0% -14 -100.0% 0 N/A% -144 -100.0%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% -50 -102.0% -14 -100.0% 0 N/A% -144 -100.0%
Drupal\Core\Database\Query\Insert::fields0 N/A% 1 2.0% 3 21.4% 0 N/A% 0 0.0%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% -1 -2.0% -2 -14.3% 0 N/A% 0 0.0%
db_insert0 N/A% -1 -2.0% -2 -14.3% 0 N/A% 0 0.0%
microtime0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 0.0%
max0 N/A% 0 0.0% -1 -7.1% 0 N/A% 0 0.0%