Re: More performance for the TCP stack by using additional hardware chip on NIC

From: Arjan van de Ven (arjan_at_infradead.org)
Date: 04/17/05

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    To: Andreas Hartmann <andihartmann@01019freenet.de>
Date:	Sun, 17 Apr 2005 11:07:59 +0200

    On Sun, 2005-04-17 at 10:17 +0200, Andreas Hartmann wrote:
    > Hello!
    >
    > Alacritech developed a new chip for NIC's
    > (http://www.alacritech.com/html/tech_review.html), which makes it possible
    > to take away the TCP stack from the host CPU. Therefore, the host CPU has
    > more performance for the applications according Alacritech.

    there are very many good reasons why this for linux is not the right
    solution, including the fact that the linux tcp/ip stack already is
    quite fast so the "gains" achieved aren't that stellar as the gains you
    get when comparing to windows.

    Also these types of solution always add quite a bit of overhead to
    connection setup/teardown making it actually a *loss* for the "many
    short connections" types of workloads. Now guess which things certain
    benchmarks use, and guess what real world servers do :)

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