Diff Report
Run #51774cdfb1214: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51774c26bf054: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for drupal_add_http_header

drupal_add_http_headerRun #51774cdfb1214Run #51774c26bf054DiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)147 146 -1 -0.7%
Incl. Wall Time (microsec) per call 49 49 -0 -0.7%
Excl. Wall Time (microsec)33 38 5 15.2%
Incl. CPU (microsecs)149 150 1 0.7%
Incl. CPU (microsecs) per call 50 50 0 0.7%
Excl. CPU (microsec)25 28 3 12.0%
Incl. MemUse (bytes)14,536 14,520 -16 -0.1%
Incl. MemUse (bytes) per call 4,845 4,840 -5 -0.1%
Excl. MemUse (bytes)2,568 2,568 0 0.0%
Incl. PeakMemUse (bytes)7,672 8,592 920 12.0%
Incl. PeakMemUse (bytes) per call 2,557 2,864 307 12.0%
Excl. PeakMemUse (bytes)1,048 1,240 192 18.3%

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% -1 -0.0% 1 0.0% -16 -0.2% 920 7.8%
Exclusive Metrics Diff for Current Function5 500.0% 3 300.0% 0 0.0% 192 20.9%
Parent function
call_user_func_array0 N/A% -1 -100.0% 1 100.0% -16 -100.0% 920 100.0%
Child functions
drupal_send_headers0 N/A% -5 -500.0% -6 -600.0% 0 0.0% 0 0.0%
drupal_static0 N/A% -1 -100.0% 3 300.0% 0 0.0% 0 0.0%
strtolower0 N/A% 0 0.0% 1 100.0% 0 0.0% 96 10.4%
_drupal_set_preferred_header_name0 N/A% 0 0.0% 0 0.0% -16 -100.0% 632 68.7%