BI Settings performance

Question

Hi , Thank alot for such a wonderful suggestions, We have 25 millions of records going to cube so for high load performance . Can u tell me where and which trancation code  to set the setting below
1.Export/Import Buffer
2. Program Buffer
3.Extended Memory
4. Single record buffer
5. Max Runtime for a work process
6. Link to Front end
7Data Base Interface oracle
value 1000000
Thanks
Poonam

Answer 1

1)Export/import buffer:
<b>Tcode = RZ11</b>
a) Size in the shared memory:
Parameter = rsdb/obj/buffersize [in kilobytes]
Default: 4,096 [kB]
Maximum: 2,097.148 [kB] for kernel release 3.I to 6.20 with a patch number
lower than 1129. Size restrictions no longer apply to releases above this
level. Every directory requires approx.
b) Number of the bufferable objects (directories):
Parameter = rsdb/obj/max_objects
Default: 2.000
The number of directories must be adapted to the total size of the buffer:
Each directory needs approximately 430 bytes of administrative information
in the buffer. All together, the directories should not take up more than
10% of the buffer, to allow enough memory space for the objects being
buffered.
2)Program Buffer
<b>Tcode = ST02</b>
Parameters
abap/buffersize    Size of program buffe
abap/pxa           Program buffer mode
3)Extended Memory
<b>Tcode =RSPFPAR</b>
parameter = ztta/roll_extension
         ztta/roll_extension_nondia      
The value specifies the amount of memory that one user context can allocate to the SAP extended memory. This value is valid for all types of work processes.You can also control the quotas for dialog and non-dialog work
processes separately. To do this use parameters ztta/roll_extension_dia and ztta/roll_extension_nondia. For example, you can give a larger proportion of extended memory to batch processes than to dialog work processes.
4)Single record buffer
You should only buffer tables that you change infrequently. You specify whether or not a table should be buffered in Transaction <b>SE13.</b>
Changes to buffered information must be updated in the buffers of other application servers that are sharing that information. These updates can adversely affect performance. The more servers that need updating, the more expensive the update process.
http://help.sap.com/saphelp_nw04s/helpdata/en/c4/3a6ebf505211d189550000e829fbbd/content.htm
5)Max Runtime for a work process
<b>Tcode = RSPFPAR</b>
Parameter = rdisp/max_wprun_time
6)Link to Front end
I dont know what you meant by that however if you meant SAPGUI buffers its below
http://help.sap.com/saphelp_nw04s/helpdata/en/c4/3a6e23505211d189550000e829fbbd/content.htm
7)Databas Interface Oracle
<b>Tcode = RSCUSTV26</b>
Parameter = Degree
Hope it Helps
Chetan
@CP..