Messages in this thread | | | Date | Fri, 13 Mar 2009 19:19:51 -0700 (PDT) | Subject | Re: [RFC v2: Patch 1/3] net: hand off skb list to other cpu to submit to upper layer | From | David Miller <> |
| |
From: Tom Herbert <therbert@google.com> Date: Fri, 13 Mar 2009 17:24:10 -0700
> Enabling HW multi-queue has somewhat higher CPU > utilization though, the extra device interrupt load is not coming for > free. We actually use the HW multi-queue in conjunction with our > software steering to get maximum pps (about 20% more).
This is a non-intuitive observation. Using HW multiqueue should be cheaper than doing it in software, right?
| |