Diff Report
Run #517d525cbaeb1: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d51ae434de: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for drupal_add_http_header

drupal_add_http_headerRun #517d525cbaeb1Run #517d51ae434deDiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)159 164 5 3.1%
Incl. Wall Time (microsec) per call 53 55 2 3.1%
Excl. Wall Time (microsec)47 49 2 4.3%
Incl. CPU (microsecs)162 169 7 4.3%
Incl. CPU (microsecs) per call 54 56 2 4.3%
Excl. CPU (microsec)41 42 1 2.4%
Incl. MemUse (bytes)14,536 14,520 -16 -0.1%
Incl. MemUse (bytes) per call 4,845 4,840 -5 -0.1%
Excl. MemUse (bytes)2,584 2,568 -16 -0.6%
Incl. PeakMemUse (bytes)8,896 8,824 -72 -0.8%
Incl. PeakMemUse (bytes) per call 2,965 2,941 -24 -0.8%
Excl. PeakMemUse (bytes)1,256 1,240 -16 -1.3%

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% 5 0.1% 7 0.1% -16 -0.3% -72 -1.2%
Exclusive Metrics Diff for Current Function2 40.0% 1 14.3% -16 -100.0% -16 -22.2%
Parent function
call_user_func_array0 N/A% 5 100.0% 7 100.0% -16 -100.0% -72 -100.0%
Child functions
drupal_send_headers0 N/A% 1 20.0% 0 0.0% 0 0.0% -56 -77.8%
strtolower0 N/A% 1 20.0% 4 57.1% 0 0.0% 0 0.0%
drupal_static0 N/A% 1 20.0% 2 28.6% 0 0.0% 0 0.0%
_drupal_set_preferred_header_name0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%