[ofa-general] IPOB CM (NOSRQ) [PATCH V9] patch

Pradeep Satyanarayana pradeeps at linux.vnet.ibm.com
Wed Oct 10 10:38:25 PDT 2007


Roland Dreier wrote:
>  > We discussed this previously and had agreed upon limiting the memory
>  > foot print to 1GB by default. This module parameter was for larger
>  > systems that had plenty of memory and could afford to use more.
>  > This way the sys admin could increase the limit.
> 
> The problem is that increasing the memory limit doesn't necessarily do
> anything.  The admin would also have to raise the limit on the number
> of QPs.  So why not just limit the number of QPs?
> 

Yes, the admin would have to increase the number of QPs as well. However, 
increasing the number of QPs only does not give a picture to the admin as 
to how much memory is being used. This way he is able to tune the system to
use resources the way he would want to control.

Pradeep




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