On Mon, Sep 20, 2004 at 08:06:46PM +0200, Henrik Nordstrom wrote: > On Mon, 20 Sep 2004, Harald Welte wrote: > > >>It is quite possible that there is a problem with the (proprietary) > >>ADSL driver, but I was wondering if someone else had some similar > >>problem in the past and could offer some advice on how to track it > >>down. > > > >No, this is actually very likely, if you are running on an embedded > >device. CONFIG_NAT will pull in everything starting from ip_tables, > >over ip_conntrack, iptable_nat,... > > Couldn't it simply be the fact that the proprietary ADSL driver (which I > assume is binary-only) is compiled without CONFIG_NETFILTER and this makes > it assume a different skbuff layout? Of course it could :) But even on a 16k Cache NSC Geode System with 266MHz I see more than 50% decrease in pps (single-flow udp 64byte) when comparing plain forwarding rate with (filter+mangle+nat+conntrack). > Regards > Henrik -- - Harald Welte <laforge@gnumonks.org> http://www.gnumonks.org/ ============================================================================ Programming is like sex: One mistake and you have to support it your lifetime
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