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Date:	Thu, 07 Jun 2007 08:22:42 -0400
From:	jamal <>
To:	David Miller <>
Subject: Re: [PATCH] NET: Multiqueue network device support.

On Wed, 2007-06-06 at 21:08 -0400, jamal wrote:

> It's too depressing - so i came back here for a break ;->

I am sure you would agree it was too depressing ;->

> As a side note: You will have to do a lot of surgery to the current code
> to make tx run on multi CPUs. It needs some experimenting to get right.
> And i am begining to like Herberts changes ;->

On clear morning thinking:
There is a scenario where multi CPUs will benefit and that is if a
single CPU cant pump fast enough to fill the wire. I think this may have
been your initial comment but we digressed into the locks. I still think
the bottleneck on the tx that needs to improve is IO (DMA, PCI/X/E etc).

And as you know though that requires some major surgery (given the
multiple producer single consumer approach we have today) and certainly
Peters patches dont add value in that direction.


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