[lkml]   [1999]   [Jun]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: 2.3.6 TCP stack bug
On Mon, 21 Jun 1999, David S. Miller wrote:

> Small outgoing packets to the pop3 server or to smtp servers seem
> to work fine though -- it looks like the TCP stack is only able to
> do one thing at a time and it processes stuff in LIFO order (or in
> this case, FINO).
> Are you trying to do bulk transfers and "choppy" connections at the
> same time? This is where PPP tends to break down, and one suggested
> workaround is to explicitly set your tx queue length to some small
> value at ifconfig up time (say "4"), this makes congestion control
> kick in much faster in these kinds of connection loads. You will then
> see that load is spread out more evenly and connections make equal
> progress.

OK. I'll try different things and document them for the
linuxperf site so that others can learn from it. I'm
also downloading a new netbase package since ifconfig 1.46
doesn't seem to know about txqueuelen :)

Btw, are the net gurus working on improving the worst-case
default behaviour of the Linux networking code? In this
case workarounds are needed to get regular work done, this
just isn't the Right Thing :(


Rik -- Open Source: you deserve to be in control of your data.
| Le Reseau netwerksystemen BV: |
| Linux Memory Management site: |
| Nederlandse Linux documentatie: |

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

 \ /
  Last update: 2005-03-22 13:52    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean