Diff Report
Run #51ec485525502: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec491641923: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec485525502Run #51ec491641923DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)2,297 2,284 -13 -0.6%
Incl. Wall Time (microsec) per call 2,297 2,284 -13 -0.6%
Excl. Wall Time (microsec)48 38 -10 -20.8%
Incl. CPU (microsecs)518 471 -47 -9.1%
Incl. CPU (microsecs) per call 518 471 -47 -9.1%
Excl. CPU (microsec)40 30 -10 -25.0%
Incl. MemUse (bytes)67,856 67,864 8 0.0%
Incl. MemUse (bytes) per call 67,856 67,864 8 0.0%
Excl. MemUse (bytes)1,552 1,552 0 0.0%
Incl. PeakMemUse (bytes)48,616 48,672 56 0.1%
Incl. PeakMemUse (bytes) per call 48,616 48,672 56 0.1%
Excl. PeakMemUse (bytes)1,736 1,736 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% -13 -0.8% -47 -2.7% 8 0.0% 56 0.0%
Exclusive Metrics Diff for Current Function-10 -76.9% -10 -21.3% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% -13 -100.0% -47 -100.0% 8 100.0% 56 100.0%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 23 176.9% -12 -25.5% 8 100.0% 8 14.3%
db_insert0 N/A% -19 -146.2% -20 -42.6% 0 0.0% 48 85.7%
Drupal\Core\Database\Query\Insert::fields0 N/A% -5 -38.5% -6 -12.8% 0 0.0% 0 0.0%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% -2 -15.4% -1 -2.1% 0 0.0% 0 0.0%
microtime0 N/A% 1 7.7% 2 4.3% 0 0.0% 0 0.0%
max0 N/A% -1 -7.7% 0 0.0% 0 0.0% 0 0.0%