Diff Report
Run #51f5bb078e5a7: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51f5bb45dd257: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51f5bb078e5a7Run #51f5bb45dd257DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,900 1,900 0 0.0%
Incl. Wall Time (microsec) per call 1,900 1,900 0 0.0%
Excl. Wall Time (microsec)37 37 0 0.0%
Incl. CPU (microsecs)583 541 -42 -7.2%
Incl. CPU (microsecs) per call 583 541 -42 -7.2%
Excl. CPU (microsec)33 28 -5 -15.2%
Incl. MemUse (bytes)67,824 67,824 0 0.0%
Incl. MemUse (bytes) per call 67,824 67,824 0 0.0%
Excl. MemUse (bytes)1,568 1,568 0 0.0%
Incl. PeakMemUse (bytes)51,232 51,232 0 0.0%
Incl. PeakMemUse (bytes) per call 51,232 51,232 0 0.0%
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% 0 0.0% -42 -35.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function0 N/A% -5 -11.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% 0 N/A% -42 -100.0% 0 N/A% 0 N/A%
Child functions
db_insert0 N/A% -16 N/A% -16 -38.1% 0 N/A% 0 N/A%
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 15 N/A% -25 -59.5% 0 N/A% 0 N/A%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% 1 N/A% 1 2.4% 0 N/A% 0 N/A%
max0 N/A% 0 N/A% 1 2.4% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Insert::fields0 N/A% 0 N/A% 1 2.4% 0 N/A% 0 N/A%
microtime0 N/A% 0 N/A% 1 2.4% 0 N/A% 0 N/A%