From: Patrick McHardy <kaber@trash.net>
To: Holger Eitzenberger <heitzenberger@astaro.com>
Cc: netfilter-devel@lists.netfilter.org
Subject: Re: [PATCH] [ULOG] Use better value for 'nlbufsiz'
Date: Wed, 18 Jan 2006 18:33:24 +0100 [thread overview]
Message-ID: <43CE7BE4.7090805@trash.net> (raw)
In-Reply-To: <11376052233425-git-send-email-heitzenberger@astaro.com>
Holger Eitzenberger wrote:
> Performance tests showed that ULOG may fail on heavy loaded systems
> because of failed order-N allocations (N >= 1).
>
> The default value of 4096 is not optimal in the sense that it actually
> allocates _two_ contigous physical pages. Reasoning: ULOG uses
> alloc_skb(), which adds another ~300 bytes for skb_shared_info.
>
> This patch sets the default value to NLMSG_GOODSIZE and adds some
> documentation at the top.
Applied, thanks Holger.
next prev parent reply other threads:[~2006-01-18 17:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-18 17:27 [ULOG] Fix memory allocation bug - take two Holger Eitzenberger
2006-01-18 17:27 ` [PATCH] [ULOG] Use better value for 'nlbufsiz' Holger Eitzenberger
2006-01-18 17:33 ` Patrick McHardy [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-01-18 15:34 [ULOG] Use better value for nlbufsiz Holger Eitzenberger
2006-01-18 15:34 ` [PATCH] ULOG] Use better value for 'nlbufsiz' Holger Eitzenberger
2006-01-18 16:51 ` Patrick McHardy
2006-01-18 17:07 ` Holger Eitzenberger
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