Do big includes affect the performance of a program?

Hello,
We are using an include (CRM_DIRECT) which has about 45 other includes (sub includes), the includes containts constants. We are wondering if it is better to include a sub include, when using a constant from only that sub include, then using the global include? Does this make a difference in performance or optimizes SAP this when compiling?
With regards,
Frank Roels

Hi,
if you are using a "big include" then it will be declaring lots of tables,structures,types etc...which needs memory allocation.Directly including a parent may reduce work but again memory wastage will cost you performance in overall running time....
Regards
Byju

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Moderator Message: Moved from ABAP General as the Performance Experts are here.
Edited by: kishan P on Aug 31, 2010 12:18 PM

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Message was edited by: Lisa Roy

Here are some links that may help.
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http://www.sapinsideronline.com/searchspi/search.htm?page=article&key=44221&query_text=performance%7Ctuning

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DATA: BEGIN OF t_dels_tvpod OCCURS 100,
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