Diff Report
Run #517c76da9b0d3: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c75d3de7c7: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for _drupal_session_read

_drupal_session_readRun #517c76da9b0d3Run #517c75d3de7c7DiffDiff%
Number of Function Calls 1 1 N/A%
Incl. Wall Time (microsec) 73 73 N/A%
Incl. Wall Time (microsec) per call N/A 73 73 N/A%
Excl. Wall Time (microsec) 23 23 N/A%
Incl. CPU (microsecs) 74 74 N/A%
Incl. CPU (microsecs) per call N/A 74 74 N/A%
Excl. CPU (microsec) 17 17 N/A%
Incl. MemUse (bytes) 6,696 6,696 N/A%
Incl. MemUse (bytes) per call N/A 6,696 6,696 N/A%
Excl. MemUse (bytes) -440 -440 N/A%
Incl. PeakMemUse (bytes) 4,224 4,224 N/A%
Incl. PeakMemUse (bytes) per call N/A 4,224 4,224 N/A%
Excl. PeakMemUse (bytes) 1,680 1,680 N/A%

Parent/Child Regression/Improvement report for _drupal_session_read [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_read1 16.7% 73 0.0% 74 0.1% 6,696 2.8% 4,224 1.2%
Exclusive Metrics Diff for Current Function23 31.5% 17 23.0% -440 -6.6% 1,680 39.8%
Parent function
session_start1 100.0% 73 100.0% 74 100.0% 6,696 100.0% 4,224 100.0%
Child functions
drupal_anonymous_user1 20.0% 40 54.8% 41 55.4% 3,928 58.7% 1,008 23.9%
drupal_register_shutdown_function1 20.0% 9 12.3% 11 14.9% 1,496 22.3% 576 13.6%
session_name2 40.0% 1 1.4% 3 4.1% 888 13.3% 480 11.4%
substr1 20.0% 0 0.0% 2 2.7% 824 12.3% 480 11.4%