lkml.org 
[lkml]   [2009]   [Mar]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [RFC v2: Patch 1/3] net: hand off skb list to other cpu to submit to upper layer
From
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?


\
 
 \ /
  Last update: 2009-03-14 03:23    [W:0.071 / U:23.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site