From: "Konstantin A. Lepikhov" <lakostis@unsafe.ru>
To: ALT Linux sysadmin discuss <sysadmins@lists.altlinux.org>
Subject: Re: [Sysadmins] iptables performance
Date: Fri, 11 Apr 2008 16:10:14 +0400
Message-ID: <20080411121014.GB14544@lks.home> (raw)
In-Reply-To: <47FF3CD7.5070504@khavr.com>
Hi Andriy!
Friday 11, at 01:26:31 PM you wrote:
> Подскажите тёмному какие ручки в ядре нужно дёргать, чтобы через iptables
> можно было прогонять поток syn-flood-а в 20-40Mbps? Правил фильтрации
> где-то от сорока тысяч.
>
> Сейчас при превышении потоком определённой границы (1-2Mbps кажется),
> начинается дикая потеря пакетов, 100%-я загрузка одного из ядер оптерона
> hardware и software interrupts и следующие сообщения в логах:
>
> TCP: too many of orphaned sockets
> Out of socket memory
>
> Openvz ядро.
>
> По результатам гугленья, ручки tcp сейчас подкручены следующим образом:
>
версия ovz ядра какая?
--
WBR et al.
next prev parent reply other threads:[~2008-04-11 12:10 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-11 10:26 Andriy Khavryuchenko
2008-04-11 12:10 ` Konstantin A. Lepikhov [this message]
2008-04-11 12:23 ` Andriy Khavryuchenko
2008-04-14 5:46 ` Andrew Avramenko
2008-04-14 8:09 ` Sergey
2008-04-14 9:48 ` Konstantin A. Lepikhov
2008-04-14 11:13 ` Andriy Khavryuchenko
2008-04-14 20:16 ` Andriy Khavryuchenko
2008-04-14 20:50 ` Konstantin A. Lepikhov
2008-04-17 13:35 ` Andriy Khavryuchenko
2008-04-17 13:59 ` Andriy Khavryuchenko
2008-04-17 14:31 ` Konstantin A. Lepikhov
2008-04-17 14:36 ` Andriy Khavryuchenko
2008-04-17 14:57 ` Konstantin A. Lepikhov
2008-04-17 15:01 ` Andriy Khavryuchenko
2008-04-17 15:28 ` Konstantin A. Lepikhov
2008-04-17 16:09 ` Andriy Khavryuchenko
2008-04-17 18:30 ` Konstantin A. Lepikhov
2008-04-14 13:52 ` Sergey
2008-04-14 11:09 ` Andriy Khavryuchenko
2008-04-14 11:18 ` Andrew Avramenko
2008-04-14 11:39 ` Andriy Khavryuchenko
2008-04-14 11:51 ` Денис Смирнов
2008-04-14 11:57 ` Andriy Khavryuchenko
2008-04-14 12:19 ` Денис Смирнов
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