1 msgFwd: [networking-discuss] uperf - A network ben...

Problems with netgraph
\ Oleksandr Samoylyk (6 May 2008)
. \ Oleksandr Samoylyk (6 May 2008)
. . \ Oleksandr Samoylyk (6 May 2008)
. . \ Oleksandr Samoylyk (10 May 2008)
. . . \ Alexander Motin (10 May 2008)
. . . . \ Oleksandr Samoylyk (10 May 2008)
. . . . \ Oleksandr Samoylyk (10 May 2008)
. . . . . \ Alexander Motin (10 May 2008)
. . . . \ Oleksandr Samoylyk (10 May 2008)
. . . . . \ Alexander Motin (10 May 2008)
. . . . . . \ Oleksandr Samoylyk (10 May 2008)
. . . . . . . \ Alexander Motin (10 May 2008)
. . . . . . . . \ Oleksandr Samoylyk (10 May 2008)
. . . . . . . . \ Oleksandr Samoylyk (11 May 2008)
. . \ Alexander Motin (10 May 2008)
. \ Julian Elischer (6 May 2008)
. . \ Oleksandr Samoylyk (6 May 2008)
. . \ Oleksandr Samoylyk (6 May 2008)
. . \ David DeSimone (7 May 2008)
. . . \ Oleksandr Samoylyk (7 May 2008)
. . . . \ Julian Elischer (7 May 2008)
. . . . . \ Oleksandr Samoylyk (7 May 2008)
. . . . . . \ Julian Elischer (7 May 2008)
. . . . . . . \ Oleksandr Samoylyk (7 May 2008)
. . . . . . . . \ Julian Elischer (7 May 2008)
. . . . . . . . . \ Oleksandr Samoylyk (7 May 2008)
. . . . . . . . . . \ Bruce M. Simpson (8 May 2008)

1 msgRe: kern/123429: [nfe] [hang] 'ifconfig nfe up'...
1 msgtimewait state memory leak
1 msgRe: Is it possible to change BSD licence to GPL...
4 msgChange from BSDL to GPL
1 msgIs it possible to change BSD licence to GPL for...
5 msgCan I port 4.4BSD-Lite's TCP/IP protocol stack ...
3 msgTrying to find source of collisions
1 msgRe: kern/119516: [ip6] [panic] _mtx_lock_sleep:...
1 msgRe: kern/122858: [nsswitch] nsswitch in 7.0 is ...
1 msgRe: kern/91594: [em] FreeBSD > 5.4 w/ACPI fa...
1 msgRe: kern/105925: Regression in ifconfig(8) + vl...
1 msgRe: bin/108895: pppd(8): PPPoE dead connections...
1 msgRe: kern/109308: [pppd] [panic] Multiple panics...
1 msgRe: kern/109733: [bge] bge link state issues [r...
2 msgNetwork Patches from -RELEASE to -STABLE 7.0
24 msgTroubles with em on FreeBSD 7
13 msgIPPROTO_DIVERT and PF_INET6
6 msgMFC of em/igb drivers
Subject:Problems with netgraph
Group:Freebsd-net
From:Oleksandr Samoylyk
Date:6 May 2008


 
Dear developers,

Please read this thread:
http://lists.freebsd.org/pipermail/freebsd-net/2008-May/017891.html

I'm using no encryption and no compression in mpd, so netgraph should fly.
It seems to get bad after 500 sessions...

In FreeBSD 6 - it's swi1: net - 100% CPU
In FreeBSD 7 - it's em0 taskq - 100% CPU

After playing with it I can make guess that's a netgraph problem.

Maybe it's a poor design in netgraph the way it handle its tables and
it's is probably not designed to add so many interfaces.

Might be there something in the source code I can edit to improve the
table lookups or hash table or whatever netgraph use to store and
process the node information and do the ppp/gre work.

--
Oleksandr Samoylyk
OVS-RIPE
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