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Date:	Tue, 03 Feb 2009 16:46:09 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	zbr@...emap.net
Cc:	jarkao2@...il.com, herbert@...dor.apana.org.au, w@....eu,
	dada1@...mosbay.com, ben@...s.com, mingo@...e.hu,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	jens.axboe@...cle.com
Subject: Re: [PATCH v2] tcp: splice as many packets as possible at once

From: Evgeniy Polyakov <zbr@...emap.net>
Date: Tue, 3 Feb 2009 14:10:12 +0300

> NTA tried to solve this by not allowing to free the data allocated on
> the different CPU, contrary to what SLAB does. Modulo cache coherency
> improvements,

This could kill performance on NUMA systems if we are not careful.

If we ever consider NTA seriously, these issues would need to
be performance tested.
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