From: Pablo Neira <pablo@eurodev.net>
To: hadi@cyberus.ca
Cc: Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@redhat.com>,
netdev@oss.sgi.com
Subject: Re: [PATCH] Improve behaviour of Netlink Sockets
Date: Mon, 20 Sep 2004 20:14:42 +0200 [thread overview]
Message-ID: <414F1E12.6010808@eurodev.net> (raw)
In-Reply-To: <1095683660.1047.254.camel@jzny.localdomain>
Hi,
jamal wrote:
>On Sun, 2004-09-19 at 22:58, Herbert Xu wrote:
>
>
>>AFAICT the problem Pablo is trying to solve is packet loss due to
>>netlink congestion.
>>
>>There might actually be a problem with the kernel not waking up the
>>the user process when we tell it to. It might even be a scheduling
>>problem. But we'll need a test-case to assess that.
>>
>>
>>
>
>Agreed.
>For a test i typically have something adding say 10K items (actions in
>my case, but could be ipsec policies) and then try to dump them. On my
>xeon i get an overrun after about 6K items are dumped.
>
>
yes, this is exactly what I've observed.
Here a link to the tool that I use to stress netlink sockets.
http://eurodev.net/~pablo/netlinkbench-unicast-1.0.tar.gz
We've set a webpage at the university:
http://perso.ens-lyon.fr/laurent.lefevre/software/netlinkbench/ but the
link to download the tool is broken, it will be up soon.
I've make also a version for broadcast sockets but it's basically a copy
and paste of the unicast tool, I can also send you another link with it.
In nlbench-unicast.c there's a macro to set/unset MSG_DONTWAIT flag to
make it hit my code or not.
regards,
Pablo
next prev parent reply other threads:[~2004-09-20 18:14 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <412DF807.2040703@eurodev.net>
[not found] ` <20040826141407.38b56729.davem@redhat.com>
[not found] ` <412EB40A.6010100@eurodev.net>
[not found] ` <20040826214710.5e322f1a.davem@redhat.com>
[not found] ` <412F1269.8090303@eurodev.net>
[not found] ` <20040827172736.543dbd54.davem@redhat.com>
2004-08-30 0:37 ` [PATCH] Improve behaviour of Netlink Sockets Pablo Neira
2004-08-31 0:20 ` David S. Miller
2004-08-31 16:37 ` Pablo Neira
2004-08-31 20:16 ` David S. Miller
2004-09-18 10:25 ` Herbert Xu
2004-09-19 4:36 ` Pablo Neira
2004-09-19 5:18 ` Pablo Neira
2004-09-19 7:58 ` Herbert Xu
2004-09-19 12:02 ` Herbert Xu
2004-09-19 12:07 ` Herbert Xu
2004-09-19 20:50 ` Pablo Neira
2004-09-19 21:53 ` Herbert Xu
2004-09-19 22:49 ` Pablo Neira
2004-09-19 23:44 ` Herbert Xu
2004-09-20 0:31 ` Pablo Neira
2004-09-20 1:00 ` Herbert Xu
2004-09-19 20:50 ` Pablo Neira
2004-09-19 21:59 ` Herbert Xu
2004-09-19 22:39 ` jamal
2004-09-19 22:55 ` Pablo Neira
2004-09-19 23:04 ` jamal
2004-09-19 23:10 ` Herbert Xu
2004-09-19 23:17 ` Herbert Xu
2004-09-20 2:39 ` jamal
2004-09-20 2:58 ` Herbert Xu
2004-09-20 12:34 ` jamal
2004-09-20 18:14 ` Pablo Neira [this message]
2004-09-20 21:59 ` Herbert Xu
2004-09-21 11:47 ` jamal
2004-09-21 12:09 ` Herbert Xu
2004-09-22 0:05 ` Herbert Xu
2004-09-22 0:24 ` Pablo Neira
2004-09-22 2:48 ` Pablo Neira
2004-09-22 2:50 ` David S. Miller
2004-09-22 2:53 ` jamal
2004-09-22 3:46 ` Herbert Xu
2004-09-22 11:35 ` jamal
2004-09-23 12:05 ` Herbert Xu
2004-09-24 2:56 ` jamal
2004-09-24 3:20 ` Herbert Xu
2004-09-27 12:41 ` jamal
2004-09-22 4:52 ` Herbert Xu
2004-09-22 12:08 ` jamal
2004-09-22 17:52 ` David S. Miller
2004-09-23 15:40 ` Pablo Neira
2004-09-23 19:16 ` David S. Miller
2004-09-24 3:28 ` Herbert Xu
2004-09-24 5:39 ` David S. Miller
2004-09-24 6:26 ` Herbert Xu
2004-09-24 17:58 ` David S. Miller
2004-09-24 22:06 ` Herbert Xu
2004-09-24 22:28 ` Herbert Xu
2004-09-27 12:59 ` jamal
2004-09-27 12:53 ` jamal
2004-09-23 12:07 ` Herbert Xu
2004-09-24 1:19 ` Pablo Neira
2004-09-24 3:04 ` jamal
2004-09-24 3:24 ` Herbert Xu
2004-09-27 12:46 ` jamal
2004-09-27 21:36 ` Herbert Xu
2004-09-28 2:43 ` jamal
2004-09-28 2:46 ` Herbert Xu
2004-09-28 3:06 ` jamal
2004-09-28 3:23 ` Herbert Xu
2004-09-28 3:45 ` jamal
2004-09-28 3:59 ` Herbert Xu
2004-09-28 10:36 ` jamal
2004-09-28 11:11 ` Herbert Xu
2004-09-28 12:16 ` Herbert Xu
2004-09-28 12:39 ` On DaveMs congestion control algorithm WAS(Re: " jamal
2004-09-28 18:24 ` David S. Miller
2004-09-29 2:23 ` jamal
2004-09-28 12:32 ` jamal
2004-09-29 0:13 ` Herbert Xu
2004-09-29 2:52 ` jamal
2004-09-29 3:27 ` Herbert Xu
2004-09-29 4:02 ` David S. Miller
2004-09-29 10:50 ` jamal
2004-09-29 11:42 ` Herbert Xu
2004-09-29 13:55 ` jamal
2004-09-28 21:07 ` Pablo Neira
2004-09-28 23:19 ` Herbert Xu
2004-09-28 23:20 ` David S. Miller
2004-09-29 2:28 ` jamal
2004-09-29 2:30 ` Herbert Xu
2004-09-29 2:59 ` jamal
2004-09-22 2:57 ` jamal
2004-09-22 3:39 ` Herbert Xu
2004-09-19 20:47 ` Pablo Neira
2004-09-19 21:20 ` Herbert Xu
2004-09-19 22:14 ` Pablo Neira
2004-09-19 23:31 ` Herbert Xu
[not found] ` <E1C90Da-0001V7-00@gondolin.me.apana.org.au>
2004-09-19 12:00 ` Herbert Xu
2004-09-29 9:53 James Chapman
2004-09-29 9:59 ` Herbert Xu
-- strict thread matches above, loose matches on Subject: below --
2004-09-30 9:50 James Chapman
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