Diff Report
Run #51fdbca2b5409: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51fdbd76c2eed: 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 #51fdbd76c2eedDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)1,867 1,932 65 3.5%
Incl. Wall Time (microsec) per call 1,867 1,932 65 3.5%
Excl. Wall Time (microsec)55 57 2 3.6%
Incl. CPU (microsecs)524 531 7 1.3%
Incl. CPU (microsecs) per call 524 531 7 1.3%
Excl. CPU (microsec)36 39 3 8.3%
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% 65 9.8% 7 0.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function2 3.1% 3 42.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\CacheCollector::updateCache0 N/A% 65 100.0% 7 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Database\Driver\mysql\Insert::execute0 N/A% 65 100.0% 3 42.9% 0 N/A% 0 N/A%
db_insert0 N/A% -2 -3.1% -2 -28.6% 0 N/A% 0 N/A%
microtime0 N/A% 0 0.0% 1 14.3% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Insert::fields0 N/A% 0 0.0% 1 14.3% 0 N/A% 0 N/A%
Drupal\Core\Lock\LockBackendAbstract::getLockId0 N/A% 0 0.0% 1 14.3% 0 N/A% 0 N/A%
max0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%