Obiee performance tuning

HI All,
To increase the OBIEE performance I have set the cache enabled=yes in nqsconfig.xml and created the Ibot which is scheduled to run after evry 1 min.I have set this table as cacheable and set cache persistence time=1 min. in physical layer but the report in the dashbaord is showing the old data only even after 1 min.Can someone please tell me what could be the reason for this
Thanks a lot

Still my problem is not getting resolved.For increasing the performance of the dashboard I want the Ibots to run and seed the report results for that I am doing the following steps:
1.nqsconfig.ini-->cache enable-->yes
2. rpd -->physical table-->cacheable and cache persistence time=60 min.
3. Ibot --
conditional request tab -->added the report
schedule after every 1 min
recipients-->publish for subscription
delivery content-->report
destinations-->interactive dashboard
racle bi srever cache
Are the above steps correct or have I missed something?
becoz the Ibot is showing completed in job manager but the reprt in dashboard has still the old results
Thansk a lot for your help

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