Diff Report
Run #51fdbca2b5409: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51fdbdbb58abc: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Lock\DatabaseLockBackend::acquire

Drupal\Core\Lock\DatabaseLockBackend::acquireRun #51fdbca2b5409Run #51fdbdbb58abcDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,867 1,795 -72 -3.9%
Incl. Wall Time (microsec) per call 1,867 1,795 -72 -3.9%
Excl. Wall Time (microsec)55 39 -16 -29.1%
Incl. CPU (microsecs)524 493 -31 -5.9%
Incl. CPU (microsecs) per call 524 493 -31 -5.9%
Excl. CPU (microsec)36 30 -6 -16.7%
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 Function-16 -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%