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

_drupal_session_writeRun #517c1bb406b02Run #517c1c27a12c9DiffDiff%
Number of Function Calls1 -1 -100.0%
Incl. Wall Time (microsec)4,710 -4,710 -100.0%
Incl. Wall Time (microsec) per call 4,710 N/A -4,710 -100.0%
Excl. Wall Time (microsec)58 -58 -100.0%
Incl. CPU (microsecs)1,797 -1,797 -100.0%
Incl. CPU (microsecs) per call 1,797 N/A -1,797 -100.0%
Excl. CPU (microsec)46 -46 -100.0%
Incl. MemUse (bytes)88,400 -88,400 -100.0%
Incl. MemUse (bytes) per call 88,400 N/A -88,400 -100.0%
Excl. MemUse (bytes)-3,416 3,416 100.0%
Incl. PeakMemUse (bytes)225,552 -225,552 -100.0%
Incl. PeakMemUse (bytes) per call 225,552 N/A -225,552 -100.0%
Excl. PeakMemUse (bytes)3,328 -3,328 -100.0%

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_write-1 -9.1% -4,710 -1.7% -1,797 -1.5% -88,400 -19.9% -225,552 -39.6%
Exclusive Metrics Diff for Current Function-58 -1.2% -46 -2.6% 3,416 3.9% -3,328 -1.5%
Parent function
session_write_close-1 -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::execute-1 -10.0% -4,344 -92.2% -1,430 -79.6% -23,184 -26.2% -178,184 -79.0%
db_merge-1 -10.0% -236 -5.0% -237 -13.2% -56,640 -64.1% -35,576 -15.8%
Drupal\Core\Database\Query\Merge::key-1 -10.0% -30 -0.6% -32 -1.8% -4,984 -5.6% -3,480 -1.5%
drupal_static-1 -10.0% -14 -0.3% -15 -0.8% -1,056 -1.2% -712 -0.3%
Drupal::request-1 -10.0% -8 -0.2% -9 -0.5% -776 -0.9% -608 -0.3%
Symfony\Component\HttpFoundation\Request::getClientIp-1 -10.0% -7 -0.1% -8 -0.4% -816 -0.9% -648 -0.3%
Drupal\Core\Database\Query\Merge::fields-1 -10.0% -5 -0.1% -7 -0.4% -1,952 -2.2% -1,360 -0.6%
settings-1 -10.0% -5 -0.1% -6 -0.3% -776 -0.9% -608 -0.3%
Drupal\Component\Utility\Settings::get-1 -10.0% -2 -0.0% -4 -0.2% -800 -0.9% -480 -0.2%
drupal_save_session-1 -10.0% -1 -0.0% -3 -0.2% -832 -0.9% -568 -0.3%