Diff Report
Run #517c1836bbd84: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c1770a3264: XHProf Run (Namespace=drupal-perf-cottser)
Tip
Click a function name below to drill down.

Regression/Improvement summary for drupal_add_http_header

drupal_add_http_headerRun #517c1836bbd84Run #517c1770a3264DiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)148 148 0 0.0%
Incl. Wall Time (microsec) per call 49 49 0 0.0%
Excl. Wall Time (microsec)40 33 -7 -17.5%
Incl. CPU (microsecs)150 151 1 0.7%
Incl. CPU (microsecs) per call 50 50 0 0.7%
Excl. CPU (microsec)29 27 -2 -6.9%
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)8,696 8,832 136 1.6%
Incl. PeakMemUse (bytes) per call 2,899 2,944 45 1.6%
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% 0 0.0% 1 0.1% 0 0.0% 136 2.2%
Exclusive Metrics Diff for Current Function-7 N/A% -2 -200.0% 0 N/A% 0 0.0%
Parent function
call_user_func_array0 N/A% 0 N/A% 1 100.0% 0 N/A% 136 100.0%
Child functions
drupal_send_headers0 N/A% 7 N/A% 5 500.0% 0 N/A% 136 100.0%
_drupal_set_preferred_header_name0 N/A% 0 N/A% -1 -100.0% 0 N/A% 0 0.0%
strtolower0 N/A% 0 N/A% -1 -100.0% 0 N/A% 0 0.0%
drupal_static0 N/A% 0 N/A% 0 0.0% 0 N/A% 0 0.0%