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

drupal_add_http_headerRun #51774c26bf054Run #51774cdfb1214DiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)146 147 1 0.7%
Incl. Wall Time (microsec) per call 49 49 0 0.7%
Excl. Wall Time (microsec)38 33 -5 -13.2%
Incl. CPU (microsecs)150 149 -1 -0.7%
Incl. CPU (microsecs) per call 50 50 -0 -0.7%
Excl. CPU (microsec)28 25 -3 -10.7%
Incl. MemUse (bytes)14,520 14,536 16 0.1%
Incl. MemUse (bytes) per call 4,840 4,845 5 0.1%
Excl. MemUse (bytes)2,568 2,568 0 0.0%
Incl. PeakMemUse (bytes)8,592 7,672 -920 -10.7%
Incl. PeakMemUse (bytes) per call 2,864 2,557 -307 -10.7%
Excl. PeakMemUse (bytes)1,240 1,048 -192 -15.5%

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% 1 0.0% -1 -0.0% 16 0.2% -920 -7.8%
Exclusive Metrics Diff for Current Function-5 -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%