Diff Report
Run #51ec3b81ad265: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec3c1813b11: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec3b81ad265Run #51ec3c1813b11DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)975 895 -80 -8.2%
Incl. Wall Time (microsec) per call 975 895 -80 -8.2%
Excl. Wall Time (microsec)30 34 4 13.3%
Incl. CPU (microsecs)428 470 42 9.8%
Incl. CPU (microsecs) per call 428 470 42 9.8%
Excl. CPU (microsec)27 24 -3 -11.1%
Incl. MemUse (bytes)67,704 67,704 0 0.0%
Incl. MemUse (bytes) per call 67,704 67,704 0 0.0%
Excl. MemUse (bytes)1,568 1,568 0 0.0%
Incl. PeakMemUse (bytes)45,072 45,016 -56 -0.1%
Incl. PeakMemUse (bytes) per call 45,072 45,016 -56 -0.1%
Excl. PeakMemUse (bytes)1,480 1,480 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% -80 -3.3% 42 5.6% 0 N/A% -56 N/A%
Exclusive Metrics Diff for Current Function4 5.0% -3 -7.1% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% -80 -100.0% 42 100.0% 0 N/A% -56 -100.0%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% -100 -125.0% 21 50.0% 0 N/A% -56 -100.0%
db_insert0 N/A% 14 17.5% 17 40.5% 0 N/A% 0 0.0%
Drupal\Core\Database\Query\Insert::fields0 N/A% 2 2.5% 3 7.1% 0 N/A% 0 0.0%
microtime0 N/A% -1 -1.2% 0 0.0% 0 N/A% 0 0.0%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% 1 1.2% 4 9.5% 0 N/A% 0 0.0%
max0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 0.0%