Diff Report
Run #517c7dc1dc4c3: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c7d73caad2: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for drupal_add_http_header

drupal_add_http_headerRun #517c7dc1dc4c3Run #517c7d73caad2DiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)168 149 -19 -11.3%
Incl. Wall Time (microsec) per call 56 50 -6 -11.3%
Excl. Wall Time (microsec)40 39 -1 -2.5%
Incl. CPU (microsecs)171 152 -19 -11.1%
Incl. CPU (microsecs) per call 57 51 -6 -11.1%
Excl. CPU (microsec)31 27 -4 -12.9%
Incl. MemUse (bytes)14,520 14,520 0 0.0%
Incl. MemUse (bytes) per call 4,840 4,840 0 0.0%
Excl. MemUse (bytes)2,568 2,568 0 0.0%
Incl. PeakMemUse (bytes)8,768 8,880 112 1.3%
Incl. PeakMemUse (bytes) per call 2,923 2,960 37 1.3%
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% -19 -5.4% -19 -2.0% 0 0.0% 112 4.6%
Exclusive Metrics Diff for Current Function-1 -5.3% -4 -21.1% 0 N/A% 0 0.0%
Parent function
call_user_func_array0 N/A% -19 -100.0% -19 -100.0% 0 N/A% 112 100.0%
Child functions
drupal_send_headers0 N/A% -9 -47.4% -8 -42.1% 0 N/A% 112 100.0%
drupal_static0 N/A% -6 -31.6% -7 -36.8% 0 N/A% 0 0.0%
_drupal_set_preferred_header_name0 N/A% -2 -10.5% -1 -5.3% 0 N/A% 0 0.0%
strtolower0 N/A% -1 -5.3% 1 5.3% 0 N/A% 0 0.0%