Diff Report
Run #51fdbdbb58abc: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51fdbca2b5409: XHProf Run (Namespace=drupal-perf-cottser)
Tip
Click a function name below to drill down.

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

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51fdbdbb58abcRun #51fdbca2b5409DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,795 1,867 72 4.0%
Incl. Wall Time (microsec) per call 1,795 1,867 72 4.0%
Excl. Wall Time (microsec)39 55 16 41.0%
Incl. CPU (microsecs)493 524 31 6.3%
Incl. CPU (microsecs) per call 493 524 31 6.3%
Excl. CPU (microsec)30 36 6 20.0%
Incl. MemUse (bytes)67,824 67,824 0 0.0%
Incl. MemUse (bytes) per call 67,824 67,824 0 0.0%
Excl. MemUse (bytes)1,568 1,568 0 0.0%
Incl. PeakMemUse (bytes)61,272 61,272 0 0.0%
Incl. PeakMemUse (bytes) per call 61,272 61,272 0 0.0%
Excl. PeakMemUse (bytes)1,824 1,824 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% 72 7.6% 31 43.1% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function16 22.2% 6 19.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% 72 100.0% 31 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 56 77.8% 29 93.5% 0 N/A% 0 N/A%
db_insert0 N/A% -6 -8.3% -6 -19.4% 0 N/A% 0 N/A%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% 4 5.6% 0 0.0% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Insert::fields0 N/A% 2 2.8% 2 6.5% 0 N/A% 0 N/A%
microtime0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%
max0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%