linux-kernel - Re: 3.12.8 poor network performance x86

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <52DB0439.2060905@dragonslave.de>
Date:	Sat, 18 Jan 2014 23:46:17 +0100
From:	Daniel Exner <dex@...gonslave.de>
To:	Borislav Petkov <bp@...en8.de>
CC:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: 3.12.8 poor network performance x86_64

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Hi again,

Am 18.01.2014 20:50, schrieb Borislav Petkov:
> + netdev.
Thx

Am 18.01.2014 20:49, schrieb Holger Hoffstätte:> [This mail was also
posted to gmane.linux.kernel.]
> 
> On Sat, 18 Jan 2014 20:30:55 +0100, Daniel Exner wrote:
> 
>> I recently upgraded the Kernel from version 3.10 to latest
>> stable 3.12.8, did the usual "make oldconfig" (resulting config
>> attached).
>> 
>> But now I noticed some _really_ low network performance.
> 
> Try: sysctl net.ipv4.tcp_limit_output_bytes=262144

Tried that. Even 10 times the value. Same effect.

Is there something like that on a lower level of the network stack I
might try to change?

Could that be something in the cgroups layer?

Should I send a dmesg or anything else?

Greetings
Daniel
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
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=gsnO
-----END PGP SIGNATURE-----
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/