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    SubjectRe: Broadcom 5700/5701 Gigabit Ethernet Adapters
    David S. Miller writes:
    > From: Richard Gooch <rgooch@ras.ucalgary.ca>
    > Date: Mon, 11 Mar 2002 12:48:43 -0700
    >
    > David S. Miller writes:
    > > NAPI is really only going to help with high packet rates not with
    > > thinks like raw bandwidth tests.
    >
    > You're saying that people should just go and use jumbo frames? Isn't
    > that a problem for mixed 10/100/1000 LANs?
    >
    > No, I'm saying that the current situation is fine with most cards
    > and most uses.
    >
    > Ben pointed out that interrupt-mitigation challenged cards like the
    > NatSemi do gain, but that is the only case I can imagine at this
    > time.
    >
    > Unless you have a card like the NatSemi (no interrupt mitigation) or
    > your interfaces are being hit with 120,000 packets per second EACH,
    > then NAPI is not going to be an explosive gain for you.
    >
    > Look, we were able to get world records in web serving without NAPI,
    > right? :-)

    :-) I'd be happy to get near 1 Gb/s (800 Mb/s is acceptable) with a
    cheap card and MTU=1500. Ben's message about his tweaks is
    encouraging. Pity the P3 is so piss-poor.

    Regards,

    Richard....
    Permanent: rgooch@atnf.csiro.au
    Current: rgooch@ras.ucalgary.ca
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