From: Patrick Schaaf <bof@bof.de>
To: jamal <hadi@cyberus.ca>
Cc: Andi Kleen <ak@suse.de>, Rusty Russell <rusty@rustcorp.com.au>,
netfilter-devel@lists.netfilter.org, netdev@oss.sgi.com,
netfilter-core@lists.netfilter.org
Subject: Re: TODO list before feature freeze
Date: Mon, 29 Jul 2002 18:26:59 +0200 [thread overview]
Message-ID: <20020729182659.D570@oknodo.bof.de> (raw)
In-Reply-To: <Pine.GSO.4.30.0207290719580.12604-100000@shell.cyberus.ca>; from hadi@cyberus.ca on Mon, Jul 29, 2002 at 07:23:49AM -0400
Jamal,
> They also have a lot of problems with their per-packet computations.
> Robert and I spent a short time looking at "this thing that is making
> us look bad" (perfomance wise) and talked to Harald.
Do you have written up somewhere what kind of performance problems you were
seeing, under which conditions (hash bucket count, number of tracked
connections, packet load)
> Something that looked like needs improvement at first glance was the aging
> and hashing schemes.
Regarding the hashing schemes, please see discussions on netfilter-devel
over the last weeks:
http://lists.netfilter.org/pipermail/netfilter-devel/2002-July/thread.html
and a small presentation of various bucket sizes / hash functions
for some real world scenarios: http://bei.bof.de/ex6/
This presentation, a bit terse on comments, links to a tarball
which allows you to recreate the same presentation for any
dump of /proc/net/ip_conntrack, varying bucket counts and
hash functions.
best regards
Patrick
next prev parent reply other threads:[~2002-07-29 16:26 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-18 9:34 TODO list before feature freeze Rusty Russell
2002-07-19 7:39 ` Balazs Scheidler
2002-07-19 17:43 ` Michael Richardson
2002-07-29 10:57 ` jamal
2002-07-29 11:12 ` Andi Kleen
2002-07-29 11:23 ` jamal
2002-07-29 11:56 ` Andi Kleen
2002-07-29 15:40 ` Martin Josefsson
2002-07-29 16:15 ` Patrick Schaaf
2002-07-29 17:12 ` Martin Josefsson
2002-07-29 17:35 ` Nivedita Singhvi
2002-07-29 22:43 ` Martin Josefsson
2002-07-29 16:26 ` Patrick Schaaf [this message]
2002-07-29 16:31 ` Andi Kleen
2002-07-29 16:42 ` Patrick Schaaf
2002-07-29 16:45 ` Patrick Schaaf
2002-07-30 11:58 ` jamal
2002-07-30 12:27 ` Patrick Schaaf
2002-07-30 12:29 ` jamal
2002-07-30 13:06 ` Patrick Schaaf
2002-07-30 13:42 ` jamal
2002-07-30 13:08 ` Martin Josefsson
2002-07-30 15:54 ` Filip Sneppe (Cronos)
2002-07-29 15:25 ` Michael Richardson
2002-07-29 15:52 ` Patrick Schaaf
2002-07-29 20:51 ` Andi Kleen
2002-07-30 7:26 ` Patrick Schaaf
2002-07-29 22:14 ` Rusty Russell
2002-07-30 12:04 ` jamal
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