Memory Usage Cognos 8.4.1

Hi There,
For serveral time I am searching the internet on the topic Memory Usage Cognos 8.4.1
I have the idea that in a 16 GB machine with 8 cores (4CPU) only the lower part of the memory is used.
I never see more memory used than 3 GB.
Now I know that BIBUS proces uses max 2GB because its a 32 bits process
And Windows 2003 enterprise (with the /PAE swtich) uses 2 GB because its 32 Bits
Java uses also max 2 GB
Where my interest lies is the following.
If I tune my Cognos enviroment with the formules related to the CPu/Core rules I get many Bibussen,
So my question is:
Has every Bibus proces it’s own memory of 2Gb (32bits) or does all bibus processen share the 2GB. Because I never see more memory used than 3 GB.
And I you formule dictactes 16 bibus processes is there a risk of thrasing the system. By me its look like it.
Sorry for my English (I am Dutch)
Thanks in advance
With regards,

Nico Raspoort

you are right.

the java.exe process -> max 2GB
every BIBUS process -> max 2 GB

but when you run a handful simple reports at the sametime, you will see many BIBUS processes but not a high memory consumption.

when you run a handfull large and complex reports at the same time you should see more than 3 GB of RAM consuption.

Thanks for your reply,

I think it’s becomes clear to me how Cognos 8 works.

with regards,

Nico :slight_smile: