From: Gaspar Chilingarov <gasparch@gmail.com>
To: Ben Greear <greearb@candelatech.com>
Cc: netdev <netdev@vger.kernel.org>
Subject: Re: PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open huge amount of outgoing connections (unable to bind ... )
Date: Wed, 21 Apr 2010 04:20:55 +0500 [thread overview]
Message-ID: <u2t46c8cb3e1004201620tf9fce087ibae421759f9e1e84@mail.gmail.com> (raw)
In-Reply-To: <4BCE33B9.8050101@candelatech.com>
Opening that amount of incoming connections in not a problem at all.
I'm speaking of outgoing connections.
What kind of hack do you have on your kernel?
Thanks in advance,
Gaspar
2010/4/21 Ben Greear <greearb@candelatech.com>:
> On 04/20/2010 03:17 PM, Gaspar Chilingarov wrote:
>
>> I would be grateful for hints where to look in the source -- may be I
>> can produce some working patches for it.
>
> I've opened 40,000 connections to/from my machine (over external interfaces)
> on a slightly hacked .31 kernel. This is 80,000 sockets total. I bind
> to local IP and port range, as well as SO_BINDTODEVICE.
>
> I'm using a 64-bit system with 12GB of RAM, quad-core i7 3.3Ghz, etc.
>
> It takes a lot of RAM to do this but you can probably use less RAM in
> user-space
> than I am. Be sure to set your socket buffer sizes small.
>
> Thanks,
> Ben
>
>
> --
> Ben Greear <greearb@candelatech.com>
> Candela Technologies Inc http://www.candelatech.com
>
--
Gaspar Chilingarov
next prev parent reply other threads:[~2010-04-20 23:20 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-20 22:17 PROBLEM: Linux kernel 2.6.31 IPv4 TCP fails to open huge amount of outgoing connections (unable to bind ... ) Gaspar Chilingarov
2010-04-20 22:31 ` Eric Dumazet
2010-04-20 23:18 ` Gaspar Chilingarov
2010-04-20 23:42 ` Eric Dumazet
2010-04-21 0:14 ` Evgeniy Polyakov
2010-04-20 23:07 ` Ben Greear
2010-04-20 23:20 ` Gaspar Chilingarov
2010-04-20 23:20 ` Gaspar Chilingarov [this message]
2010-04-20 23:30 ` Ben Greear
2010-04-20 23:35 ` Gaspar Chilingarov
2010-04-20 23:49 ` Ben Greear
2010-04-20 23:57 ` Gaspar Chilingarov
2010-04-21 0:14 ` Eric Dumazet
2010-04-21 0:05 ` Eric Dumazet
2010-04-21 0:12 ` Gaspar Chilingarov
2010-04-21 0:14 ` David Miller
2010-04-21 0:30 ` Evgeniy Polyakov
2010-04-21 2:04 ` David Miller
2010-04-21 5:46 ` Eric Dumazet
2010-04-21 8:25 ` Evgeniy Polyakov
2010-04-21 9:02 ` Eric Dumazet
2010-04-21 9:58 ` Evgeniy Polyakov
2010-04-21 10:21 ` Eric Dumazet
2010-04-21 11:27 ` Eric Dumazet
2010-04-21 16:52 ` George B.
2010-04-21 18:27 ` Evgeniy Polyakov
2010-04-21 18:43 ` Eric Dumazet
2010-04-21 18:58 ` Evgeniy Polyakov
2010-04-21 19:26 ` Eric Dumazet
2010-04-21 20:08 ` Evgeniy Polyakov
2010-04-23 2:06 ` David Miller
2010-04-25 14:26 ` Michael S. Tsirkin
2010-04-25 15:56 ` Evgeniy Polyakov
2010-04-25 16:13 ` Eric Dumazet
2010-04-25 16:21 ` Eric Dumazet
2010-04-25 16:35 ` Michael S. Tsirkin
2010-04-25 22:08 ` David Miller
2010-04-21 19:03 ` Narendra Choyal
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=u2t46c8cb3e1004201620tf9fce087ibae421759f9e1e84@mail.gmail.com \
--to=gasparch@gmail.com \
--cc=greearb@candelatech.com \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).