Diff Report
Run #518ed14bbba55: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518eceb4aac68: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for drupal_add_http_header

drupal_add_http_headerRun #518ed14bbba55Run #518eceb4aac68DiffDiff%
Number of Function Calls3 3 0 0.0%
Incl. Wall Time (microsec)147 151 4 2.7%
Incl. Wall Time (microsec) per call 49 50 1 2.7%
Excl. Wall Time (microsec)32 40 8 25.0%
Incl. CPU (microsecs)151 154 3 2.0%
Incl. CPU (microsecs) per call 50 51 1 2.0%
Excl. CPU (microsec)28 26 -2 -7.1%
Incl. MemUse (bytes)14,520 14,544 24 0.2%
Incl. MemUse (bytes) per call 4,840 4,848 8 0.2%
Excl. MemUse (bytes)2,568 2,592 24 0.9%
Incl. PeakMemUse (bytes)7,968 9,248 1,280 16.1%
Incl. PeakMemUse (bytes) per call 2,656 3,083 427 16.1%
Excl. PeakMemUse (bytes)1,048 1,408 360 34.4%

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 1.5% 3 1.0% 24 0.1% 1,280 6.9%
Exclusive Metrics Diff for Current Function8 200.0% -2 -66.7% 24 100.0% 360 28.1%
Parent function
call_user_func_array0 N/A% 4 100.0% 3 100.0% 24 100.0% 1,280 100.0%
Child functions
drupal_send_headers0 N/A% -2 -50.0% -1 -33.3% 0 0.0% 0 0.0%
_drupal_set_preferred_header_name0 N/A% -1 -25.0% 4 133.3% 0 0.0% 448 35.0%
strtolower0 N/A% -1 -25.0% 1 33.3% 0 0.0% 416 32.5%
drupal_static0 N/A% 0 0.0% 1 33.3% 0 0.0% 56 4.4%