Diff Report
Run #51ec3c1813b11: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec3b81ad265: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51ec3c1813b11Run #51ec3b81ad265DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)895 975 80 8.9%
Incl. Wall Time (microsec) per call 895 975 80 8.9%
Excl. Wall Time (microsec)34 30 -4 -11.8%
Incl. CPU (microsecs)470 428 -42 -8.9%
Incl. CPU (microsecs) per call 470 428 -42 -8.9%
Excl. CPU (microsec)24 27 3 12.5%
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)45,016 45,072 56 0.1%
Incl. PeakMemUse (bytes) per call 45,016 45,072 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 Function-4 -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%