Diff Report
Run #51f5bb078e5a7: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51f5bbaa8fc1d: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51f5bb078e5a7Run #51f5bbaa8fc1dDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,900 1,922 22 1.2%
Incl. Wall Time (microsec) per call 1,900 1,922 22 1.2%
Excl. Wall Time (microsec)37 48 11 29.7%
Incl. CPU (microsecs)583 520 -63 -10.8%
Incl. CPU (microsecs) per call 583 520 -63 -10.8%
Excl. CPU (microsec)33 39 6 18.2%
Incl. MemUse (bytes)67,824 67,808 -16 -0.0%
Incl. MemUse (bytes) per call 67,824 67,808 -16 -0.0%
Excl. MemUse (bytes)1,568 1,568 0 0.0%
Incl. PeakMemUse (bytes)51,232 51,176 -56 -0.1%
Incl. PeakMemUse (bytes) per call 51,232 51,176 -56 -0.1%
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% 22 0.5% -63 -1.5% -16 -0.0% -56 -0.1%
Exclusive Metrics Diff for Current Function11 50.0% 6 9.5% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% 22 100.0% -63 -100.0% -16 -100.0% -56 -100.0%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 74 336.4% -9 -14.3% 0 0.0% -40 -71.4%
db_insert0 N/A% -61 -277.3% -61 -96.8% -16 -100.0% -16 -28.6%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% -2 -9.1% -1 -1.6% 0 0.0% 0 0.0%
microtime0 N/A% 0 0.0% 1 1.6% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\Insert::fields0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
max0 N/A% 0 0.0% 1 1.6% 0 0.0% 0 0.0%