Diff Report
Run #517d750163e11: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d7587ada9c: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for drupal_add_http_header

drupal_add_http_headerRun #517d750163e11Run #517d7587ada9cDiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)148 164 16 10.8%
Incl. Wall Time (microsec) per call 49 55 5 10.8%
Excl. Wall Time (microsec)38 39 1 2.6%
Incl. CPU (microsecs)153 166 13 8.5%
Incl. CPU (microsecs) per call 51 55 4 8.5%
Excl. CPU (microsec)27 30 3 11.1%
Incl. MemUse (bytes)14,520 14,536 16 0.1%
Incl. MemUse (bytes) per call 4,840 4,845 5 0.1%
Excl. MemUse (bytes)2,568 2,568 0 0.0%
Incl. PeakMemUse (bytes)8,824 8,896 72 0.8%
Incl. PeakMemUse (bytes) per call 2,941 2,965 24 0.8%
Excl. PeakMemUse (bytes)1,240 1,240 0 0.0%

Parent/Child Regression/Improvement report for drupal_add_http_header [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_add_http_header0 N/A% 16 0.2% 13 0.1% 16 0.1% 72 0.7%
Exclusive Metrics Diff for Current Function1 6.2% 3 23.1% 0 0.0% 0 0.0%
Parent function
call_user_func_array0 N/A% 16 100.0% 13 100.0% 16 100.0% 72 100.0%
Child functions
drupal_send_headers0 N/A% 15 93.8% 16 123.1% 16 100.0% 72 100.0%
_drupal_set_preferred_header_name0 N/A% 0 0.0% -1 -7.7% 0 0.0% 0 0.0%
strtolower0 N/A% 0 0.0% -5 -38.5% 0 0.0% 0 0.0%
drupal_static0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%