Diff Report
Run #521962a927d49: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5219624c55207: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #521962a927d49Run #5219624c55207DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,998 1,744 -254 -12.7%
Incl. Wall Time (microsec) per call 1,998 1,744 -254 -12.7%
Excl. Wall Time (microsec)45 40 -5 -11.1%
Incl. CPU (microsecs)530 461 -69 -13.0%
Incl. CPU (microsecs) per call 530 461 -69 -13.0%
Excl. CPU (microsec)38 39 1 2.6%
Incl. MemUse (bytes)67,120 67,128 8 0.0%
Incl. MemUse (bytes) per call 67,120 67,128 8 0.0%
Excl. MemUse (bytes)1,624 1,624 0 0.0%
Incl. PeakMemUse (bytes)51,760 51,992 232 0.4%
Incl. PeakMemUse (bytes) per call 51,760 51,992 232 0.4%
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% -254 -54.6% -69 -7.3% 8 0.0% 232 0.8%
Exclusive Metrics Diff for Current Function-5 -2.0% 1 1.4% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% -254 -100.0% -69 -100.0% 8 100.0% 232 100.0%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% -241 -94.9% -62 -89.9% 0 0.0% 0 0.0%
db_insert0 N/A% -5 -2.0% -5 -7.2% 8 100.0% 232 100.0%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% -3 -1.2% -1 -1.4% 0 0.0% 0 0.0%
microtime0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\Insert::fields0 N/A% 0 0.0% -1 -1.4% 0 0.0% 0 0.0%
max0 N/A% 0 0.0% -1 -1.4% 0 0.0% 0 0.0%