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Date:      Mon, 9 Nov 1998 10:32:48 -0500 (EST)
From:      "Larry S. Lile" <lile@stdio.com>
To:        David Greenman <dg@root.com>
Cc:        hackers@FreeBSD.ORG
Subject:   Re: mbuf question 
Message-ID:  <Pine.BSF.3.96.981109103125.26563D-100000@heathers.stdio.com>
In-Reply-To: <199811091501.HAA04321@root.com>

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On Mon, 9 Nov 1998, David Greenman wrote:

> >Are mbufs allocated below the 16M area?
> >
> >If they are, is it likely to change?
> >
> >Why?  Because I am trying to eliminate bcopy's and mallocs in my 
> >token-ring driver to gain a little more performance.
> 
>    They're allocated throughout the machine's physical address space.

I was afraid of that, so I should just make new buffers and copy when
I need DMA'able memory.  Otherwise I can just use the mbuf's directly.

Thanks!

Larry Lile
lile@stdio.com



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