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_add_http_header

drupal_add_http_headerRun #517c76da9b0d3Run #517c75d3de7c7DiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)150 664 514 342.7%
Incl. Wall Time (microsec) per call 50 221 171 342.7%
Excl. Wall Time (microsec)33 32 -1 -3.0%
Incl. CPU (microsecs)154 666 512 332.5%
Incl. CPU (microsecs) per call 51 222 171 332.5%
Excl. CPU (microsec)26 26 0 0.0%
Incl. MemUse (bytes)14,520 47,288 32,768 225.7%
Incl. MemUse (bytes) per call 4,840 15,763 10,923 225.7%
Excl. MemUse (bytes)2,568 2,568 0 0.0%
Incl. PeakMemUse (bytes)8,704 69,720 61,016 701.0%
Incl. PeakMemUse (bytes) per call 2,901 23,240 20,339 701.0%
Excl. PeakMemUse (bytes)1,240 576 -664 -53.5%

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% 514 0.2% 512 0.5% 32,768 13.5% 61,016 17.3%
Exclusive Metrics Diff for Current Function-1 -0.2% 0 0.0% 0 0.0% -664 -1.1%
Parent function
call_user_func_array0 N/A% 514 100.0% 512 100.0% 32,768 100.0% 61,016 100.0%
Child functions
drupal_send_headers0 N/A% 520 101.2% 522 102.0% 32,768 100.0% 61,680 101.1%
_drupal_set_preferred_header_name0 N/A% -5 -1.0% -8 -1.6% 0 0.0% 0 0.0%
strtolower0 N/A% 1 0.2% -1 -0.2% 0 0.0% 0 0.0%
drupal_static0 N/A% -1 -0.2% -1 -0.2% 0 0.0% 0 0.0%