Diff Report
Run #517896dc57c6e: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5178989df1d0f: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for drupal_add_http_header

drupal_add_http_headerRun #517896dc57c6eRun #5178989df1d0fDiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)149 153 4 2.7%
Incl. Wall Time (microsec) per call 50 51 1 2.7%
Excl. Wall Time (microsec)35 34 -1 -2.9%
Incl. CPU (microsecs)153 156 3 2.0%
Incl. CPU (microsecs) per call 51 52 1 2.0%
Excl. CPU (microsec)30 28 -2 -6.7%
Incl. MemUse (bytes)14,544 14,544 0 0.0%
Incl. MemUse (bytes) per call 4,848 4,848 0 0.0%
Excl. MemUse (bytes)2,568 2,568 0 0.0%
Incl. PeakMemUse (bytes)8,360 8,360 0 0.0%
Incl. PeakMemUse (bytes) per call 2,787 2,787 0 0.0%
Excl. PeakMemUse (bytes)1,144 1,144 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% 4 0.1% 3 0.1% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-1 -25.0% -2 -66.7% 0 N/A% 0 N/A%
Parent function
call_user_func_array0 N/A% 4 100.0% 3 100.0% 0 N/A% 0 N/A%
Child functions
drupal_send_headers0 N/A% 9 225.0% 9 300.0% 0 N/A% 0 N/A%
_drupal_set_preferred_header_name0 N/A% -4 -100.0% -5 -166.7% 0 N/A% 0 N/A%
strtolower0 N/A% 0 0.0% -1 -33.3% 0 N/A% 0 N/A%
drupal_static0 N/A% 0 0.0% 2 66.7% 0 N/A% 0 N/A%