[openib-general] heads-up - ipoib NAPI

[Eli cohen]

On Thu, 2006-09-21 at 19:31 -0700, harish wrote:

> How did the CPU utilizations compare for the NAPI vs. no NAPI case?
> What are your thoughts on what bottleneck you are hitting?
> 


The CPU utilization reported by netperf is not accurate since it is not
reported on a per cpu basis and I don't have one number to reliably
describe utilization. I think the bottleneck is that the CPU that
handles the softirq that handles the rx sk_buffs is 100% utilized and it
dictates the limit.