[lkml]   [2004]   [Aug]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [patch] voluntary-preempt-
On Mon, 2004-08-23 at 17:01, Ingo Molnar wrote:

> - reduce netdev_max_backlog to 8 (Mark H Johnson)

On my system this setting has absolutely no effect on the skb related
latencies. I tested setting netdev_max_backlog to every power of two
between 1 and 128, and regardless of this setting, I can produce a
450-600 usec latency with:

ping -s 65507 -f $DEFAULT_GATEWAY

Looks like skb_checksum is the problem. Here is one of the traces:


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 14:05    [W:0.320 / U:5.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site