Diff Report
Run #5178989df1d0f: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517896dc57c6e: 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 #5178989df1d0fRun #517896dc57c6eDiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)153 149 -4 -2.6%
Incl. Wall Time (microsec) per call 51 50 -1 -2.6%
Excl. Wall Time (microsec)34 35 1 2.9%
Incl. CPU (microsecs)156 153 -3 -1.9%
Incl. CPU (microsecs) per call 52 51 -1 -1.9%
Excl. CPU (microsec)28 30 2 7.1%
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 Function1 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%