Diff Report
Run #517c1c27a12c9: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c1bb406b02: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for _drupal_session_write

_drupal_session_writeRun #517c1c27a12c9Run #517c1bb406b02DiffDiff%
Number of Function Calls 1 1 N/A%
Incl. Wall Time (microsec) 4,710 4,710 N/A%
Incl. Wall Time (microsec) per call N/A 4,710 4,710 N/A%
Excl. Wall Time (microsec) 58 58 N/A%
Incl. CPU (microsecs) 1,797 1,797 N/A%
Incl. CPU (microsecs) per call N/A 1,797 1,797 N/A%
Excl. CPU (microsec) 46 46 N/A%
Incl. MemUse (bytes) 88,400 88,400 N/A%
Incl. MemUse (bytes) per call N/A 88,400 88,400 N/A%
Excl. MemUse (bytes) -3,416 -3,416 N/A%
Incl. PeakMemUse (bytes) 225,552 225,552 N/A%
Incl. PeakMemUse (bytes) per call N/A 225,552 225,552 N/A%
Excl. PeakMemUse (bytes) 3,328 3,328 N/A%

Parent/Child Regression/Improvement report for _drupal_session_write [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_session_write1 9.1% 4,710 1.7% 1,797 1.5% 88,400 19.9% 225,552 39.6%
Exclusive Metrics Diff for Current Function58 1.2% 46 2.6% -3,416 -3.9% 3,328 1.5%
Parent function
session_write_close1 100.0% 4,710 100.0% 1,797 100.0% 88,400 100.0% 225,552 100.0%
Child functions
Drupal\Core\Database\Query\Merge::execute1 10.0% 4,344 92.2% 1,430 79.6% 23,184 26.2% 178,184 79.0%
db_merge1 10.0% 236 5.0% 237 13.2% 56,640 64.1% 35,576 15.8%
Drupal\Core\Database\Query\Merge::key1 10.0% 30 0.6% 32 1.8% 4,984 5.6% 3,480 1.5%
drupal_static1 10.0% 14 0.3% 15 0.8% 1,056 1.2% 712 0.3%
Drupal::request1 10.0% 8 0.2% 9 0.5% 776 0.9% 608 0.3%
Symfony\Component\HttpFoundation\Request::getClientIp1 10.0% 7 0.1% 8 0.4% 816 0.9% 648 0.3%
Drupal\Core\Database\Query\Merge::fields1 10.0% 5 0.1% 7 0.4% 1,952 2.2% 1,360 0.6%
settings1 10.0% 5 0.1% 6 0.3% 776 0.9% 608 0.3%
Drupal\Component\Utility\Settings::get1 10.0% 2 0.0% 4 0.2% 800 0.9% 480 0.2%
drupal_save_session1 10.0% 1 0.0% 3 0.2% 832 0.9% 568 0.3%