Diff Report
Run #5208407650493: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #520840a963a54: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #5208407650493Run #520840a963a54DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,795 1,726 -69 -3.8%
Incl. Wall Time (microsec) per call 1,795 1,726 -69 -3.8%
Excl. Wall Time (microsec)45 36 -9 -20.0%
Incl. CPU (microsecs)556 488 -68 -12.2%
Incl. CPU (microsecs) per call 556 488 -68 -12.2%
Excl. CPU (microsec)42 27 -15 -35.7%
Incl. MemUse (bytes)89,760 89,760 0 0.0%
Incl. MemUse (bytes) per call 89,760 89,760 0 0.0%
Excl. MemUse (bytes)1,624 1,624 0 0.0%
Incl. PeakMemUse (bytes)68,656 68,656 0 0.0%
Incl. PeakMemUse (bytes) per call 68,656 68,656 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% -69 -63.9% -68 -38.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-9 -13.0% -15 -22.1% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% -69 -100.0% -68 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% -54 -78.3% -50 -73.5% 0 N/A% 0 N/A%
db_insert0 N/A% -4 -5.8% -3 -4.4% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Insert::fields0 N/A% -1 -1.4% -1 -1.5% 0 N/A% 0 N/A%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% -1 -1.4% 0 0.0% 0 N/A% 0 N/A%
microtime0 N/A% 0 0.0% 1 1.5% 0 N/A% 0 N/A%
max0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%