Diff Report
Run #51ec5ca916d7d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec5cfb002ea: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec5ca916d7dRun #51ec5cfb002eaDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)875 945 70 8.0%
Incl. Wall Time (microsec) per call 875 945 70 8.0%
Excl. Wall Time (microsec)34 35 1 2.9%
Incl. CPU (microsecs)418 409 -9 -2.2%
Incl. CPU (microsecs) per call 418 409 -9 -2.2%
Excl. CPU (microsec)26 29 3 11.5%
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)52,656 52,656 0 0.0%
Incl. PeakMemUse (bytes) per call 52,656 52,656 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% 70 4.5% -9 -9.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 1.4% 3 33.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% 70 100.0% -9 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 76 108.6% -3 -33.3% 0 N/A% 0 N/A%
db_insert0 N/A% -5 -7.1% -5 -55.6% 0 N/A% 0 N/A%
microtime0 N/A% -1 -1.4% -1 -11.1% 0 N/A% 0 N/A%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% -1 -1.4% -1 -11.1% 0 N/A% 0 N/A%
max0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Insert::fields0 N/A% 0 0.0% -2 -22.2% 0 N/A% 0 N/A%