OBIEE 11g Performance Tuning

Question

Has anyone seen a guide for tuning BI 11g? I have not been able to find a whole lot.

Answer 1

Hi All,
I am an Oracle DBA, recently in out TEST servers we have upgraded OBIEE from 10g to 11g. Actually we have installed OBIEE 11g on a separate server.
The Data source is Oracle 10.2.0.4 and it is unchanged.
Some reports are taking almost 60% extra time to run from the 11g OBIEE server. As I said earlier, the DB is same and both the OBI servers are accessing same DB.
Being a DBA I am not much confident in OBI, but I need to tune the OBIEE 11g or at least need to find the root cause for the performance degradation in OBI 11g.
I have made use of STAR TRANSFORMATION and that has reduced time in both reports from OBI 10g and 11g, but still 11g is taking around 60 - 70% time more.
Can anybody give me the possible areas to look into in OBIEE?
From the answers above, I have decided to compare the parameters in NQSCONFIG.INI file.
The reports are running queries like the following:
select <columns> from
(select <columns>, RN
from
(select sum(case when T96804.CALL_IND = 1 then T96804.NUM_CT end ) as c1,
c2
........ <truncated>
ROW_NUMBER() OVER (PARTITION BY T17950.X_POA, T91870.LVL4ANC_POSTN_ID, T93168.NAME, T94899.LVL5ANC_PROD_NAME ORDER BY T17950.X_POA ASC, T91870.LVL4ANC_POSTN_ID ASC, T93168.NAME ASC, T94899.LVL5ANC_PROD_NAME ASC) as RN
from
W_DAY_D T17950 /* Dim_W_DAY_D_TimePeriod */ ,
MVW_POSITION_DH T91870 /* Dim_MVW_POSITION_DH_Position_Hierarchy */ ,
W_POSITION_D T92698 /* Dim_W_POSITION_D_Position */ ,
W_PRODUCT_DH T94899 /* Dim_W_PRODUCT_DH_Product_Hierarchy */ ,
W_PRODUCT_D T96701 /* Dim_W_PRODUCT_D_IMS */ ,
W_PERSON_D T92361 /* Dim_W_PERSON_D_Contact */ ,
W_LOV_D T93168 /* Dim_W_LOV_D_Product_Priority */ ,
W_LOV_D T92808 /* Dim_W_LOV_D_Territory_Type */ ,
W_CALL_ATTND_F T96804 /* Fact_W_CALL_ATTND_F [Base] */
where ( T17950.ROW_WID = T96804.PERIOD_DAY_WID and T91870.LVL1ANC_POSTN_ID = T92698.INTEGRATION_ID and T92361.ROW_WID = T96804.CONTACT_WID and T92698.ROW_WID = T96804.OWNER_POSTN_WID and T92808.ROW_WID = T96804.X_TERR_TYPE_WID and T93168.ROW_WID = T96804.PRIORITY_WID and T92808.TYPE = 'TERR_TYPE' and T92698.TYPE_FLG = 'Y' and T92808.NAME = 'DCS' and T93168.TYPE = 'PRODUCT_PRIORITY' and T94899.LVL1ANC_PROD_ID = T96701.INTEGRATION_ID and T94899.X_RELN_TYPE = 'RETL' and T96701.DATASOURCE_NUM_ID = 2 and T96701.ROW_WID = T96804.PROD_WID and (T92361.X_SEGMENT in ('BRONZE', 'GOLD', 'SILVER')) and (T93168.NAME in ('PRIMARY', 'SECONDARY')) and (T94899.LVL5ANC_PROD_NAME in ('LEVEMIR®', 'NOVOLOG®', 'NOVOLOG® MIX 70/30', 'VICTOZA®')) and T17950.PER_NAME_MONTH between '2011/01' and '2011/10' )
group by T17950.X_POA, T91870.LVL4ANC_POSTN_ID, T91870.LVL4_ID_POSTN, T91870.LVL6ANC_POSTN_ID, T91870.LVL6_ID_POSTN, T91870.LVL7ANC_POSTN_ID, T91870.LVL7_ID_POSTN, T91870.LVL8ANC_POSTN_ID, T91870.LVL8_ID_POSTN, T93168.NAME, T94899.LVL5ANC_PROD_NAME, case when substr(T91870.LVL4ANC_POSTN_ID , 8 , 1) = 1 then 'DCS-V' when substr(T91870.LVL4ANC_POSTN_ID , 8 , 1) = 2 then 'DCS-L' else 'DCS OTHER' end
) D1
where ( D1.c14 = 1 )
) D2
order by c10, c6, c8, c7