Diff Report
Run #517d52b5a5611: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d51ae434de: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for drupal_add_http_header

drupal_add_http_headerRun #517d52b5a5611Run #517d51ae434deDiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)191 164 -27 -14.1%
Incl. Wall Time (microsec) per call 64 55 -9 -14.1%
Excl. Wall Time (microsec)34 49 15 44.1%
Incl. CPU (microsecs)192 169 -23 -12.0%
Incl. CPU (microsecs) per call 64 56 -8 -12.0%
Excl. CPU (microsec)23 42 19 82.6%
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)8,880 8,824 -56 -0.6%
Incl. PeakMemUse (bytes) per call 2,960 2,941 -19 -0.6%
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% -27 -1.1% -23 -1.6% 0 0.0% -56 -0.5%
Exclusive Metrics Diff for Current Function15 55.6% 19 82.6% 0 N/A% 0 0.0%
Parent function
call_user_func_array0 N/A% -27 -100.0% -23 -100.0% 0 N/A% -56 -100.0%
Child functions
drupal_send_headers0 N/A% -44 -163.0% -46 -200.0% 0 N/A% -56 -100.0%
strtolower0 N/A% 1 3.7% 2 8.7% 0 N/A% 0 0.0%
drupal_static0 N/A% 1 3.7% 0 0.0% 0 N/A% 0 0.0%
_drupal_set_preferred_header_name0 N/A% 0 0.0% 2 8.7% 0 N/A% 0 0.0%