linux-kernel - Re: [RFC PATCH v2] bridge: make it possible for packets to traverse the bridge without hitting netfilter

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Message-Id: <20150226.113431.238255529591339000.davem@davemloft.net>
Date:	Thu, 26 Feb 2015 11:34:31 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	imrep@...zon.de
Cc:	fw@...len.de, imrep.amz@...il.com,
	bridge@...ts.linux-foundation.org, stephen@...workplumber.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	aliguori@...zon.com
Subject: Re: [RFC PATCH v2] bridge: make it possible for packets to
 traverse the bridge without hitting netfilter

From: Imre Palik <imrep@...zon.de>
Date: Thu, 26 Feb 2015 11:19:25 +0100

> If you are looking for peculiarities in my setup then here they are:
> I am on 4k pages, and perf is not working :-(
> (I am trying to fix those too, but that is far from being a low hanging fruit.)
> So my guess would be that the packet pipeline doesn't fit in the cache/tlb

Pure specualtion until you can actually use perf to measure these
things.

And I don't want to apply patches which were designed based upon
pure speculation.
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