Re: [patch] voluntary-preempt-2.6.8.1-P8

Ingo Molnar
2004-08-24T06:03:09Z

* Lee Revell <rlrevell@joe-job.com> wrote:

> > it has an effect on input queue length. Output queue lengths can be
> > reduced via 'ifconfig eth0 txqueuelen 8'.
>
> OK. With both of these set to 4, the largest latency I was able to
> generate by ping flooding was 253 usecs.
>
> Is there any particular reason one of these parameters is set via a
> sysctl/proc entry, and one by ifconfig?

well, the input packet backlog is global, the output one is local. No
good reason otherwise.

Ingo